Critical evaluation of Freemark Abbey Winery Essay

Critical evaluation of Freemark Abbey Winery - Essay Example The best quality wine is produced only when the fruit has been ripened to a level where it reaches a perfect balance of acidity and sweetness. The ripeness of grapes is influenced by the existing weather conditions as well. In order to produce the right type of wine it is crucial that everything from the level of ripeness the grapes have achieved to the existing weather are all in a perfect balance. Most of all the fermentation process is accelerated by a certain type of bacteria known as botrytis mold. The latter part of the case takes an elaborate look at the different factors which impact its owner’s decisions regarding whether or not to harvest the grapes based on the weather predictions of an approaching storm. It discusses the ways in which the storm could affect the quality of wine and in turn its market price. If the wine was perfectly botrytised the wine would be significantly superior in quality but its quantity would be reduced. This kind could produce fewer bottles but they could easily be priced relatively high at a price of $8.00. The case study revolves around discussing all these factors which influence William Jaeger about deciding whether or not he should harvest the grapes prior to the approaching storm or wait for luck to strike. This is a critical decision to make and all possible options should be evaluated before taking a decision. There are several predictors of decision and various factors which have to be taken into consideration in order to decide whether the grapes should be harvested immediately or at a later stage. The biggest problem is that Jaeger’s decisions are all based on assumptions about the weather forecast. Incase the assumptions fail, the consequential strategy will also be unsuccessful. Freemark Abbey can rent a weather detector to maximize surety. In case the storm does not strike, early harvest can lead to a

Spiritual Assessment of Mentally Retarded Patient Essay

Spiritual Assessment of Mentally Retarded Patient - Essay Example This discussion stresses that FICA serves as an imperative tool for the spiritual assessment of the patients in order to cure them from spiritual and psychological disorder. The medical advisor concentrates upon the nature, influence, community and application of the patient’s faith in order to pacify and soothe him in the light of his religious and spiritual beliefs. â€Å"The connection between spirituality and medicine†, Puchalski observes, â€Å"has been receiving a lot of attention in both the scientific and lay presses recently, but research and anecdotal evidence all indicate that spirituality is central to the care of the chronically ill and dying.† Consequently, almost all therapeutic and healthcare centers take spiritual needs of the patients into serious consideration in order to rescue them from emotional trauma on the basis of their spiritual needs.This paper discusses that  Mrs. Wilson claimed to be a spiritual person, as she aptly heard the call of conscience and virtue deep in her heart; consequently, she used to offer charity and donation to the disabled persons and orphans through non-governmental and charity organizations. She endorsed the very reality that religion maintained imperative significance in her life. Since the noble teachings of St. Perpetua had left indelible imprints upon her mind, she felt great relief by studying the marvelous sacrifices made by her. She also sought support from Heavens to get cured immediately, which revealed her strong belief in her Creator.

Patients and Clients in Home Care Essay Example for Free

Patients and Clients in Home Care Essay It is said that â€Å"there’s no better place than home†. This is the comfort that home care provides its patients. It permits the assistance of people that have special needs in the comfort of their homes and with the companionship of their families. Medical services and health assistance can now be obtained without going away from the confines of your home. It is now possible that health service providers will be the ones to go to the patient’s home so that the patient will not have to be confined in a hospital or a nursing institution. Home care is an alternative method to sustain the growing demand for medical health services. Due to the observed surge in the number of people with special needs, unconventional venues for taking care of this people aside from hospitals, rehabilitation centers, and nursing homes were considered. The establishment of home care services answers the demand of different venues for health services. Home care is the offering of medical services by formal providers such as doctors, registered nurses, and physical therapist or by informal providers such as caregivers in the patient’s homes. It aims to promote, reinstate, and sustain the comfort, function, and health of a patient to its maximum limit. Taking care of patients during the last days of their life is also part of the objective. Classifications of home health care includes: preventive, promotive, therapeutic, long-term maintenance, rehabilitative and palliative care(DOH). People that need home care are geriatric individuals, chronically ill patients, persons with disabilities, and patients that are recovering from surgeries. Seventy percent of the clients that availed home health care services are geriatric people of age 65 and above. Disease diagnoses that are most rampant in these home care patients are: Heart disease, diabetes, cerebral vascular disease, chronic obstructive pulmonary disease (COPD), malignant neoplasm, fractures, congestive heart failure, osteoarthritis and allied disorders, and hypertension(NCHS). Care from registered nurses, physical therapists, and social workers; access to medical equipments; check up by doctors; help with running errands; medication delivery; and meal preparation are some of the services that are offered by home health care providers. Types of home care vary with different kind of providers. Skilled care type is offered by licensed medical practitioners like doctors, registered nurses, medical social workers and physical therapist. This type of home care service focuses on the reinstating and maintaining the health of a client. It includes disease diagnoses, disease treatments, wound care, injection and intravenous therapy, medical assessments, nutritional management, and counseling. The other type of service is the home support services that are offered by caregivers or health care aides which are more inclined to domestic tasks like personal hygiene or bathing assistance; running errands; grocery shopping; cooking and eating assistance; light house keeping; and medication reminders(MFMER ). Clients of home care services expect the providers of these services to meet their specific needs. The most common client specifications are good quality care; availability of service; health service provider with appropriate training and expertise; high quality, effective care; and affordable service. Home care providers are expected by clients to give them respect, inflict no harm to them, and treat them well(Nina Preto). They also expect to have their rights as a patient considered, respected and instituted. The law currently implements the home care patients right to: choose their care providers; be informed fully by the health service agency provider of his/her rights and responsibilities as a patient; obtain the needed professional care following the doctor’s orders; receive continuous care; be asked consent prior to any treatment regimen or procedure; advised for any plan changes prior the change; avail service that is safe and in accordance to the professional care needed; be informed of actions in the event of emergency; and to voice opinions regarding the treatment or procedure(Hospice). Different individual conditions require varied specific needs so the provider should be competent enough to be able to address these circumstances. The geriatric or elderly persons for example have various conditions that have complex needs. Usually diseases of the old individuals are multi-factorial; the change of their condition is unpredictable; and outcome of treatment or management is random. So it is best if the home care providers of the elderly with diseases to be registered nurses or doctors for prompt treatment and disease management. Though in other instances home care is employed by geriatric patients that are healthy but in need of assistance in performing their daily tasks from as simple as opening doors for them to household chores. Another example of patients with different needs is the patients with cancer. These individuals are more at ease in the confines of their homes and families. They do not want to be separated from there families because usually these patients gain there strengths from them. The emotional and moral support the families give are vital for a cancer patient. Home care allows these patients to have all the support they can get from there families. As cancer is a devastating disease the home care provider should be able to give support to the patient, address his/her medical needs, and educate the family about the situation of the patient. Diabetes patients on the other hand, need home care providers to always encourage them to control the blood glucose levels because complication development can better be prevented with serious control on glycemia. These patients also need home care providers that are inclined in nutrition for diabetes patients to obtain the needed nutrients without sacrificing their blood glucose levels. Along with the boost of home care industry are problems or issues that need to be resolved. Some of these problems that affect both the home care consumer and the provider are the following: worker related injuries; worker abuse and exploitation by the client; competency of the health care provider; abuse of the client; client prejudice toward the caregiver; worker benefits issue; confidentiality issues in the clients home; and clients being at risk of theft and other forms of crimes. Confidentiality issue in client-caregiver relationship is one of the prime problems of home care services. Prone to this problem are the caregivers or health care aides that have little backgrounds or training in professional ethics and usually provide service to their clients twenty-four hours a day, seven days a week. Most of them also stay in the houses of their clients so it is common that they know the things that happen inside the house especially among family members. The dilemma is in situations that either the caregiver spill the information he/she knows or if the information is critical to the well-being of the client and the caregiver will not know whether to keep it confidential or not. An example situation is when a client is being battered by a member of his or her family, what will the caregiver do? Is he/she supposed to tell anyone like the authorities or is he/she will just keep silent and wait that other people will discover the situation? If the caregiver gives the information to authorities it might be an invasion of the client’s privacy. Moral risks, virtues, intimacy, and professional ethics are bound with confidentiality issue in home care. Home care service providers should be made sure to have proper training in professional conduct and ethics to avoid any problems that will interfere with the client and their family relationship. Problems such as this needs attention of legislators for the home care consumers to be secured that the service provider they employ are properly trained and knows his place as a home care worker in a family setting. Client prevention of problems related to the home care service provider begins with choosing a competent agency that ensures the capabilities of their workers. Clients should not just consider the monetary factor involve in employing a home care worker to prevent the hiring of low paid providers and yet incompetent in many aspects of health service provision. Health care organizations have to address these problems and anticipate other issues that will emerge for the improvement of the home care service, benefit of the client, and avoidance of dilemma in the part of the caregiver. Government agencies concerned need to make rigorous effort towards the establishment and implantation of rules that would not just protect the home care consumers but the home care service workers as well. In every development there is always the emergence of problems and this is just what happened in home care. The burst of this industry is high-speed that problems are realized only when it was already encountered. The shift from institutionalized health care to home care brought about problems that touch aspects like professional ethics, unavailability of equipments in the patient’s home, monetary factors, client-worker relationship, and home care provider-patient’s family relationship. Despite of this, home care still provides an alternative venue for the patients or clients to have their needs being taken care of. The problems will just have to be addressed for the improvement of the industry. Home care is a promising revolution of institutionalized care wherein patients of institutionalized care are deprived of their right to spend their lives in the comfort of their home and with the presence of their loved ones. Reference http://www.mayoclinic.com/print/home-care-services/HA00086/METHOD=print

The Importance Of Wastewater Treatment Environmental Sciences Essay

The Importance Of Wastewater Treatment Environmental Sciences Essay Water scarcity is the major problem that is faced all across the world. Although 2/3rd of the earths crust is made up of water but all this water is not available for drinking and for other human activities as either it is locked in the form of ice or present in the form of vast saline oceans and seas. It has been found out that 97% of the total water is salty that is of no use to human and animals (except marine animal) and the remaining three percent is available as freshwater. More than half of this three percent is locked in glacier and less than 0.01% is available as fresh water. So water resources are less as compare to human demand for water. Above this, the major part of water that can be consumed is getting polluted because of human activities. This polluted and untreated water is causing abundant water borne diseases. Then the world is facing a huge climatic change which is further aggravating the water problem. Some of the regions are getting more rain water than earlier and some are getting almost negligible. Experts even believe that the next World War would not be for oil or land but it will be for water. Also because of improper use of water and lack of water treatment, the problem of water crisis will further increase where 884 million people are already not getting easy access to safe drinking water. And a further 2.5 billion people are getting difficult access to water for disposable and sanitation. Agriculture is also overusing and polluting the ground water thus depleting the natural source of water. So here water treatment plants will play important role. Water crisis at present is the biggest problem according to the United Nations. Almost 25 countries of Africa, parts of China, Peru and Brazil in Latin America, some parts of Middle East like Iran, Chile, Mexico, and Paraguay are some of the countries that are facing the water crisis. Even other parts of the world are facing the varied levels of the water crisis. Because of acute shortage of water, the food problems are getting aggravated. About 40 million people in Africa are facing the problem of food shortage. It is expected that if the similar conditions will persist then there will be 500 million till 2025 who will suffer from these problems. Nature has its role but the major water problem is arising because of its increasing consumption and faulty usage. Major chunk of the problem can be solved if the wastewater treatment is taken very seriously and precautions at every step are taken to improve the water quality. The supply and demand The demand for fresh clean water delivered to our homes is ever increasing as more and more residential homes are being established. Although 70% of the world is covered with water, only 1% is fresh water and thus raises a need to recycle waste water to satisfy our needs. Efforts to continuously recycle waste water are always stressed upon as a shortage would mean a disaster in heavily populated areas. Governments have committed billions towards research and development to such projects. Fresh water is also needed in agriculture. The demand for water in this sector is very high as farmer need fresh water for crops and cattle. Therefore, stresses the demand for sewage water treatment plants to be built. Water from rivers and lake are inadequate to provide water for farm and residences alike. The supply of sewage water treatment facilities are slowly dwindling. A crisis may arise from a lack of sewage water treatment plants as this would greatly reduce the supply of fresh water. Governments are desperately trying to keep up with the pace of development of the population but are slowly lagging behind. The supply of fresh water will be adequate for the next few years but if the development of sewage water treatment plant continues at its current pace it without a doubt a shortage would take place. Furthermore, the agriculture industry will be greatly impacted and the supply of food will go down as well leading to famine due to a shortage of water. The prospects of this industry The wastewater treatment industry most probably will be successful in future due to presence of new wastewater treatment technologies. Advanced Immobilized Cell Reactor technology is one of the new technologies which immobilize the organisms such as bacteria in the pores of the carbon matrix. This process can avoid the immobilized organisms from shock load application as the diffusion of the pollutants from bulk fluid phase to organisms follows Ficks law. Through conventional biological wastewater treatment, infinite electrical energy and vast land area are being consumed. Besides that, a huge investment in electromechanical equipment is involved which will bring about a huge total cost of operation. Generally, the total cost of operation for new technology is lowered compared to the convention technology. By using the new technology, the total cost of operation can be cut down to approximately 50 percent of the total cost of conventional treatment. Furthermore, the biological oxygen demand and chemical oxygen demand are reduced by 94 percent and 90 percent respectively. Oxygen consumption in the new technology is lower than in conventional technology. The oxygen gas is supplied in the form if compressed air from the bottom of the reactor. Both liquid and gas streams are in counter-current direction which facilitates the oxidation of dissolved organics and desorbs the converted products. This is to make sure the activated carbon keep up its activity throughout the process. Moreover, with all those new wastewater technologies such as Advanced Oxidation Process, NERV (Natural Endogenous Respiration Vessel), Wet oxidation and many others processes, wastewater treatment can be done efficiently. For instant, through the new technologies less land is required to use to build plant; the power consumption is lowered. Besides that, the requirement for electrical and mechanical equipment is lower compared to conventional technology. In a conclusion, wastewater treatment industries have a good prospect in the future with the help of new technologies. By using all those new technologies, waste water treatment can be done efficiently with lower overall lifecycle costs, lesser energy and equipment needed. We are sure that there is more new technologies will be invented in order to improve the wastewater treatment. The impact on the environment When the waste water is mixed with the waste materials such like garbage, household waste, toilets liquid and disposable things, the resulting product called sewage or waste water. This sewage water is normally will undergo a few process before it is release to the environment but there are still some impact on the environment. One of the impacts on the environment is agricultural impacts. The sewage water contains salts which is soluble that may accumulate in the root zone with possible harmful effect on soil health and crop yield. The physical and mechanical properties of the soil, such as dispersion of particle, stability of aggregates, soil structure and permeability are very sensitive to the types of exchangeable ions present in irrigation water. Thus, when effluent use is being planned, several factors related to the soil properties must be taken into consideration. On the other hand the effect of dissolved solids in the irrigation water on the growth of plants is also another aspect of agriculture which we have to concern. Dissolved salts increase the osmotic potential of soil water and increase the osmotic pressure of the soil solution which increases the growth and the yield of most plants decline progressively as osmotic pressure increases. In addition the one of the environment impact is ecological impact where the drainage water from waste water irrigation schemes drains particularly into small confined lakes and water bodies and surface water, and if phosphatesin the ortho phosphate form are present, the remains of nutrients may cause eutrophication. Here the overloading organic materials resulting in decrease in dissolved oxygen may lead to changes in the composition of a aquatic life such as fish deaths and reduced fishery. The eutrophication potential of waste water irrigation can be assessed using biological indices, which in turn can be qualified in monitory units using economic valuation techniques. The hidden impact on the environment is the increase on the production of green house emissions. The large agriculture reuse project might cause to the environmental externalities associated with pumping water uphill which emits greenhouse gas. Another impact is on the health. The sewage water contains pathogenic microorganisms like bacteria, viruses, protozoans and parasitic worms, the diseases and signs related with such infection are also diverse including typhoid,dysentry and cholera, diarrhea and vomiting. the concentration of he pathogens in waste water is dependent on the source population and the susceptibility to infection varies from one population to another. So basically he waste water is actually harm for the nature even though its treated and release to the environment so as a human being we should not dispose the waste into the water thus our water will be clean and the cost of the treatment can be reduced. The Processes involved in this industry Pre-Treatment(prepared by Brian Lee CL, 0902669) Pre-treatment consists of three sub-stages which are Screening, Grit Removal and Fat and Grease Removal. Pre-treatment is done to remove materials which are easily collected such as debris, leaves and trash which would damage or clog up pumps and skimmers of the primary treatment. Screening is used to remove large objects such as leaves, twigs and cans in the sewage stream. This is normally done with a giant mechanical rake bar which is automated. The rake bar revolves around a central axis at a rate varying on the accumulation and flow rate of the sewage stream. The screens vary in sizes to optimize solid removal. Objects accumulated are collected and disposed in landfills. Grit is minute granules such as sand or stone. The wastewater is channeled to a chamber where to velocity of the water is adjusted so that the grit would settle at the bottom of the chamber. Grit may cause damage to the pumps or other equipment. Grit removal may not necessary in smaller plant. Fat and grease are groups of compounds which are generally insoluble in water. The fat and grease are normally found floating on the surface of the water. In some plants, the fat and grease are removed by using skimmers to collect the fat and grease on the surface of the water in a small tank. However this can also be done in the Primary treatment stage in the same manner. 2) Primary treatment (prepared by Tan HY, 0903497) Primary wastewater treatment is the second step in the wastewater treatment process ahead of the preliminary treatment of a headworks, involves the physical separation of suspended solids from the wastewater flow using primary clarifiers. The objective of primary treatment is the removal of settle able organic and inorganic solids by sedimentation, and the removal of materials that will float (scum) by skimming. Approximately 25 to 50% of the incoming biochemical oxygen demand (BOD5), 50 to 70% of the total suspended solids (SS), and 65% of the oil and grease are removed during primary treatment. Some organic nitrogen, organic phosphorus, and heavy metals associated with solids are also removed during primary sedimentation but colloidal and dissolved constituents are not affected. The effluent from primary sedimentation units is referred to as primary effluent. On the other hand, primary treatment is the minimum level of reapplication treatment required for wastewater irrigation. It may be considered sufficient treatment if the wastewater is used to irrigate crops that are not consumed by humans or to irrigate orchards, vineyards, and some processed food crops. However, to prevent potential nuisance conditions in storage or flow-equalizing reservoirs, some form of secondary treatment is normally required  in  these countries, even in the case of non-food crop irrigation. It may be possible to use at least a portion of primary effluent for irrigation if off-line storage is provided. Primary sedimentation tanks or clarifiers may be round or rectangular basins, typically 3 to 5 m deep, with hydraulic retention time between 2 and 3 hours. Settled solids (primary sludge) are normally removed from the bottom of tanks by sludge rakes that scrape the sludge to a central well from which it is pumped to sludge processing units. Scum is swept across the tank surface by water jets or mechanical means from which it is also pumped to sludge processing units. 2) Secondly treatment (prepared by Harintharan S, 1101379) The secondary treatment in this sewage treatment is one of the most important part in this process. This process is basically designed to remove the waste product from the sewage. This system is also classified as fixed-film  or suspended-growth  systems. The secondary treatment contain a few processes, the 1st process is activated sludge. This activated sludge is majority from the plants which encompass the variety of mechanisms and processes that use dissolve oxygen  to promote the growth of biological flock that substantially removes organic material. This process basically change the ammonia  to  nitrite  and  nitrate  and ultimately to  nitrogen  gas. The 2nd process is this treatment is the Surface-aerated basins also known as Lagoons. This process basically removes the BOD from the sewage water. In an aerated basin system, the aerators provide two functions: they transfer air into the basins required by the biological oxidation reactions, and they provide t he mixing required for dispersing the air and for contacting the reactants (that is, oxygen, wastewater and microbes).However, they do not provide as good mixing as is normally achieved in activated sludge systems and therefore aerated basins do not achieve the same performance level as activated sludge units. The biological oxidation in the Surface-aerated basins is sensitive to the temperature and the rate of reaction increase with the temperature. The suitable temperature for this process is in between  0  °C and 40  °C. Besides that the constructed wetland is one of the process also. This process is a process which cleans the drainage of animals and used to recycle the waste water. The constructed wetland are known to be highly productive systems as they copy natural wetlands, called the Kidneys of the earth for their fundamental recycling capacity of the hydrological cycle in the biosphere and they provide a high degree of biological improvement but depending on design. T he next process is the filter beds which is knows as oxidizing beds are used where the settled sewage liquor is spread onto the surface of a bed made up of  coke, then liquor is typically distributed through perforated spray arms, then distributed liquor trickles through the bed and is collected in drains at the base, and the  biological films of bacteria, protozoa and fungi to reduce the organic content. The next process is the Biological aerated filters are a combine filtration with biological carbon reduction,  nitrification  or denitrification. Its a dual processer in purpose of to support highly active biomass that is attached to it and to filter suspended solids. Carbon reduction and ammonia conversion occurs in aerobic mode and sometime achieved in a single reactor while nitrate conversion occurs in  anoxic  mode. This process is operated either in up flow or down flow configuration depending on design specified by manufacturer. In addition the Rotating biological contactors are the next process in this secondary treatment. This is actually a secondary mechanical treatment system which is capable  of withstanding surges in organic load. The rotating disks support the growth of bacteria and micro-organisms present in the sewage, which break down and stabilise organic pollutants. Oxygen is obtained from the atmosphere as the disks rotate. As the micro-organisms grow, they build up on the media until they are sloughed off due to shear forces provided by the rotating discs in the sewage.   Effluent from the system is then passed through final clarifiers where the micro-organisms in suspension settle as sludge. The sludge is withdrawn from the clarifier for further treatment. After that the membrane bioreactor combine activated sludge treatment with a membrane liquid-solid separation process. The component on this system uses low pressure for microfiltration or ultra-filtration membranes and eliminates the need for clarification and tertiary filtration.   The elevated biomass concentration in the system process allows for very effective removal of both soluble and particulate biodegradable materials at higher loading rates. The final process in this secondary treatment is the secondary sedimentation where the process is to settle out the biological flock or filter material through a secondary clarifier and to produce sewage water containing low levels of organic material and suspended matter. 4) Tertiary treatment (prepared by Raiminder S, 0904743) The main purpose of the tertiary treatment is to ensure that the treated water which is to be released on to the environment is biologically accepted by all other fresh water organisms such as weeds and algae. This part of the treatment includes processes like physical water treatment, lagooning, and excessive nutrient removal processes.to ensure that the discharged water is raised in effluent quality before proceeding to the final stages. In physical water treatment, much of the residual suspended matters are removed using only physical processes such as sedimentation  method and the infamous filtration method. In the sedimentation  method, the water is place in a certain tank to allow all the remaining heaver objects to sink down to the bottom of the container. After few hours went most of the dense object are separated from the water, the cleared effluent or waste stream is removed. Sedimentation is one of the most common methods, quite often used at the beginning and the end of many water treating processes. Another physical method that is commonly used in the sewage water treatment system is the filtration method. In filtration, the water is allowed to pass through filters to separate the contaminating solids from the water. Sand filter is a common filter used in this process. In a number of wastewater treatment methods, semi-solid contaminants like grease and oil are allowed to float on the surface of the wat er, and then they are physically removed. Besides the in lagooning where lagoon is a stationary system having a continuous flow: several ponds working in parallel in which the inlet flow and the outlet flow are equals form lagoon plants. The lagooning technique is a natural and very efficient technique that consists in the accumulation of wastewater in ponds or basins, known as biological or stabilization ponds, where a series of biological, biochemical and physical processes take place. In these ponds or lagoons, certain types of the microorganism are actually supported as these biological agents help in treating the water further by removing the fine particulates. These types of biological ponds are usually classified as anaerobic ponds or oxidation ponds depending on the shape, depth, organic rate, level of treatment of that particular lagoon itself. The excessive nutrient removal is the most viral step in the last stages of the water treatment before the water is released to the environment. When the previously treated water comes to this area of the system, the nutrients level mainly nitrogen and phosphorus in the water is checked. Where when found in excess, the excessive nutrient removal step is carried out. This is because if the unchecked water supply is to be released into the natural water system (river, pond, etc.) it will cause a sudden increase in the native microorganism population of that certain water system. Some of the native microorganisms which are commonly found in ponds today are usually weeds, algae, and cyanobacteria. Therefore, after the sudden rapid grown in the population of these microorganisms, the number of algae for example, becomes unsustainable which causes most of them to die and eventually decay. The following decay process would substantially increase the biochemical oxygen demand (BOD) in that p articular pond, which would cause the other fresh water living organism such as fishes to die as well. Firstly, the nitrogen removal process is carried out. There are various methods of removing nitrogen, each with advantages and disadvantages. However, the biological treatment method is used most commonly. With this method, organic nitrogen and ammonia nitrogen is converted into nitrous and nitrate nitrogen in an aerobic environment, and is dispersed into the atmosphere as anaerobic nitrogen gas. Therefore the gas is removed from the water and released to the atmosphere. And as there is no secondary pollution, this can be called an effective method. In the removal of phosphorus is usually carried out using a method called enhanced biological phosphorus removal (EBPR). The first process in EBPR is the mainstream biological treatment process. Where the utilizing of aerobic and solids separation zones and the provision of return activated sludge are carried out. The next is a first side stream process for anoxic/anaerobic selection of desirable BPR organisms such as the polyphosphate accumulating organisms (PAOs). Finally, a second side stream process serves to ferment organic material in some of the return activated sludge to produce food utilized in the first side stream selection process. The system permits the three processes to be separated from each other by creating two side streams, allowing all three processes to be controlled separately and optimized in satisfying their own specific goals. Besides this biological method, the removal of phosphorus can also be done via chemical precipitation, usually with salts of iron, alu minum, or lime. Chemical precipitation is usually more reliable, easier to operate, and requires smaller equipment footprint than biological removal. But the main back draws of this chemical method is that it may form excessive sludge production as hydroxides precipitates and the chemical used in this method might be considered expensive. 5) Disinfection (prepared by Lim CS, 1001012) The main purpose of disinfection in the wastewater treatment is to provide a degree of protection from contact with infectants and pathogen organisms which will cause waterborne diseases such as cholera, dysentery and hepatitis. Disinfection is also used to reduce the load of microorganisms in the wastewater to be discharged to the environment. Primary, secondary and even tertiary treatments do not fully remove the incoming waste load and microorganisms in the water stream and as a result, many microorganisms still remain in the wastewater. Therefore, various methods of disinfection are introduced such as chemical methods, physical methods and biological methods. The effectiveness of disinfection depends on different factors including the quality of wastewater being treated, disinfectant dosage, type of disinfection being used and others. For instant, cloudy wastewater will not be treated efficiently due to less contact time between ultraviolet light and microorganisms. These microorganisms are shielding by those solid matters in wastewater stream and it reduces the contact time. Generally, long contact times, high concentration of disinfectant and optimum temperature and pH value will increase the effectiveness of disinfection. Chlorination is one of the chemical methods which is commonly used for disinfection in the wastewater treatment. It is widely used through the world due to its low cost and long-term history of effectiveness. Chlorine can be applied in two general ways, liquid and gas. Chlorine in gaseous form is generally added to the wastewater stream rather than liquid form which is also known as hypochlorite because the former costs lesser than the latter. When chlorine dissolves in pure water, hypochlorous acid is formed followed by hypochlorites which are known as free residual chlorines Chlorine is an extremely active oxidizing agent which will react with many other substances in the water stream. For instant, it reacts rapidly with such compounds as hydrogen sulfide, ferrous iron and manganese which found in industrial wastewater. However, if all of the chlorine is consumed in these reactions, no disinfection will result. Hence, to accomplish disinfection, sufficient chlorine is added into wastewater stream to satisfy the chlorine demand and produce residual chlorine which will destroy bacteria. There are few factors which will affect the effectiveness of chlorination. Among the factors are pH, temperature, turbidity, control system and many others. However, chlorination brings some disadvantage to environment. Chlorination of residual organic material can generate chlorinated-organic compound which may be harmful to the environment. Those residual chlorines are toxic to aquatic species; therefore, dechlorination is needed, adding to complexity and cost of treatment. However, chlorination becomes less favoured as disinfectant due to rising cost and it had found to be toxic to aquatic species. As a result, ozone and ultraviolet begin to be used as disinfectant. Ultraviolet (UV) light is more environmental friendly to be used as no chemicals are used and leave no toxic residual. Ultraviolet radiation and damages the genetic material of microorganisms, destroying their ability to reproduce. Before pass through the UV disinfection unit, the wastewater must pass through an advanced pretreatment component. Wastewater flows in the stream parallel to the UV light in a thin film in order to increase the contact time. To increase the effectiveness of the UV light, the UV radiation must come in direct with pathogen organisms and other microbial in the wastewater stream. The effectiveness of a UV disinfection system is affected by few factors including characteristics of the wastewater, the contact time, intensity of UV radiation and many others. Turbidity, flow rate of water stream and suspended solids are also play an important roles in UV disinfection. These factors must be kept at low levels to ensure proper treatment. Disinfection of wastewater, primarily by chlorination, has played an important role in the reduction of waterborne disease. However, there are more new disinfection processes are being developed in order to maximize the effectiveness of disinfection. Role of engineer in this industry The Chemical Engineering is the profession that combines chemistry and engineering concepts that help to solve problems related to world hunger, pollution of our environment, creating new materials, or meeting demands for energy. Chemical engineers develop low cost processes for useful chemical products, which make it possible for both poor nations and the United States to manufacture important fertilizers. The roles of a chemical engineer in waste water treatment have to minimize the waste across the plant or reduction of waste loading to the treatment plant. Other than that, chemical engineer need to state whether its systems for the treatment and reuse of wastewater, process water treatment for industry, high-purity water for sensitive medical or scientific applications, or systems to supply clean drinking water to people and their families. Besides that, as a chemical engineer also responsible for providing expertise in their respective discipline as it applies to the hazard analysis of the process being studied. Therefore, we also in charge for attending the initial hazard analysis kick-off meeting. On the other hand, we are also required to be available to the team as required with the understanding that the team leader will give adequate advance notice when their expertise is required. Lastly we are necessary to provide documents of any existing safeguards and procedures. Skills/ knowledge required Many types of skills and knowledge are required for chemical engineer in waste water treatment. They required intensive knowledge in wastewater treatment technologies, so that they will more easy to solve the problems when they face the difficulty. On the other hand, they also need expertise in equipment design, influent water treatment, effluent monitoring, and wastewater recycling. In addition, proficiency in computer, programming, modeling and data analysis, for example AutoCAD, Microsoft Office, FOTRAN, Origin, Maple, Polymath, and other software are also the knowledge needed for chemical engineer. Moreover, strong technical writing, presentation, and project management skills are also useful skill for chemical engineer in order to present the researches after they have completed. Besides the skills at above the hazard and operability study (HAZOP) technique also needed for a chemical engineer working in industry. The HAZOP technique is most popular in most industry because that is technique which is structured and systematic examination of a planned or existing process or operation in order to identify and evaluate problems that may represent risks to personnel or equipment, or prevent efficient operation. Otherwise, HAZOP as well a qualitative technique based on guide-words and is carried out by a multi-disciplinary team (HAZOP team) during a set of meetings.

Sex and Mans Struggle Against Nature :: science

Sex and Man's Struggle Against Nature In "Sex and Violence, or Nature and Art," Camille Paglia claims nature is inherently stronger than society. "Society is an artificial construction, a defense against nature's power.a system of inherited forms reducing our humiliating passivity to nature." (Writing in the Disciplines 572) I agree with the majority of Paglia's opinions, however, I believe that there are points that could have been elaborated on more substantially. In this essay, Paglia states that man is born evil and it is society's job to condition him to be a good, moral person. Paglia would disagree with someone who said the reason a person murdered was because he grew up in a bad section of town, or his home life left something to be desired. On the contrary, Paglia claims it is the inner evil, the "nature," of the person to kill, and it is society's lack of conditioning that releases this savage response. "Society is not the criminal but the force which keeps crime in check." (Writing in the Disciplines 574) She claims no matter how much a person sinks into religion, or their society, nature will always have the upper hand. Paglia believes if man is left to his natural instincts, with no threat of society's punishment, he will be evil and commit evil deeds. In society, sexual urges can often influence a person's morality, making him second-guess his values for the sake of sexual pleasure. She also goes on to say, "getting back to nature. would be to give free rein to violence and lust." (Writing in the Disciplines 573-574) I agree that this scenario is a possible outcome, but Paglia fails to mention that with out society we would have no idea, which deeds were evil and which were not. It is society that has set the limits and told us what is evil. Before men were grouped together in societies, they roamed free with no idea of right and wrong. It wasn't until man made up his religion with its rules, regulations and laws that he had a conscious idea of evil. But I do agree with Paglia that nature is the stronger force, and no matter how much we try to fool ourselves into believing that society or religion can save us from the torment of nature, we will always be reminded of mother nature's force. "Civilized man conceals from himself the extent of his subordination to nature.

Role Reversal within Macbeth :: Essays Papers

Role Reversal within Macbeth Shakespeare’s Macbeth documents a man’s desire for power, and the murderous acts that he commits in order to gain it. Nevertheless, it equally focuses on his power-crazed wife and her amplified drive for control. Macbeth and his wife are joined by more than holy matrimony. Shakespeare creates an intriguing relationship that traces the downfall of not a single person, but an entity comprised of two. The concentration is directed on this oneness through the plot progression within Macbeth, in which the roles of Macbeth and Lady Macbeth are reversed. Even upon the first introduction of the Macbeths, it is evident that they do not represent the stereotypical men and women of Shakespeare’s day. In public, Lady Macbeth plays the traditional housewife and hostess while Macbeth is acknowledged by his colleagues as a fierce and loyal warrior; however, the Macbeths behave quite the opposite when in only each other’s company. Lady Macbeth blatantly distinguishes herself as the dominant force in the relationship. For instance, when Macbeth is unsure of how to manage Duncan’s visit to Inverness, Lady Macbeth instantaneously seizes control of the situation, demanding that Macbeth â€Å"put/This night’s great business into my dispatch† (1.6. 79-80). This type of behavior from a woman was unheard of in Shakespeare’s time according to Roland Muschat Frye, who states, â€Å"This evil consists in Lady Macbeth’s usurping, as a wife, that conjugal authority which Shakespeare’s age regarde d as naturally and irrevocably assigned to the husband† (102). Macbeth, however, displays no interest in assuming command and is portrayed as subservient to his overbearing wife, as Frye confirms, â€Å"While Lady Macbeth ‘unsexed’ herself, Macbeth profaned his sex by submission to her† (104). Hence, even from the start, the Macbeths’ personalities reflect the inverse of the social standard of that time. As the play proceeds, however, the balance of this relation will reverse. Macbeth and his wife clearly exchange roles in terms of the amount of ambition they display. Although both characters blatantly crave power, it is Lady Macbeth who is initially presented as the driving force in the relationship. Her intentions are purely directed toward obtaining immediate power. For example, upon first learning about the witches’ predictions, she immediately devises a murder plot and takes charge of the situation. This is made evident as she coldly explains to her husband, â€Å"Only look up clear,/To alter favor ever is to fear.

Racial Wealth Inequality

Caitlin Maltbie 009606309 Take Home Essay Question 2: Racial Wealth Gap Between Blacks and Whites After racial discrimination was made illegal in the 1960s, blatant and bigot racism has seemed to disappear, yet remaining racist attitudes have continued to put blacks at an overall disadvantage due to the progression of these attitudes into institutionalized settings and policies.The result of historical and contemporary discrimination and segregation is a widening gap of racial wealth between blacks and whites. Now, America could be argued to be a dichotomized society of black and white, proving that the Kerner Commission was correct to predict that â€Å"our nation is moving toward two societies, one black, one white, separate and unequal (Bobo & Smith 1998: 178). † Although whites didn’t necessarily intend on such a separate and unequal society, they don’t plan to change it either.The reasons behind this perpetuating, widening gap that I will discuss follow a hi story of disadvantage versus advantage dating back to the time of slavery, as well as segregation and discrimination in practices such as hiring processes, loans, residential structuring, wages, and government aid which have resulted in increases of unemployment among inner-city blacks as well as concentrated poverty. Blacks are at a disadvantage to whites because they lack human capital tracing back to equal education and job opportunity that would regularly aid to accumulate wealth as it does for whites.Starting back as far as the 16th century, slavery crippled chances for blacks to gain social and economic mobility. Now, we continue to see these crippling effects among generations of blacks. Not only do whites typically earn more annually, they have an easier time finding employment. The racialization of the state could be considered the starting point of the racial wealth gap between whites and gaps, and can be seen in policies and programs in the U. S.. Beginning during the tim es of slavery, if blacks were able to accumulate any amount of money they would spend it on the freedom of themselves and their family, whereas whites were ble to purchase assets with their money and eventually able to generate monetary inheritances for their upcoming generations. To add to the disadvantages, in the 19th century homestead laws didn’t allow African Americans to take advantage of federal land-grant programs. The core of the New Deal legislation, the Social Security Act of 1935 ultimately cut blacks out of receiving any benefits due to the fact that it exempted agricultural and domestic workers. The New Deal also exempted blacks because they fell beneath the threshold for coverage due to lower wages.After World War II, the Fair Housing Act funneled loans away from cities into the suburbs, furthering the chances of blacks to own homes. Contemporary policies such as the AFDC practically forces wanting recipients to rid themselves of any assets to pass a test in or der to receive benefits. The Internal Revenue Code and the Internal Revenue System gives tax breaks on assets such as homes, so due to the fact that blacks have less assets than whites, they again are at a disadvantage.The result has been that blacks have continuously put more into the system and have received less in return. Homeownership in America is the primary means for generating wealth, and it also serves as a pathway to community and schooling, and parental assistance in buying a first home is key to setting opportunities for their adult children and their families (Shapiro 2003: 87). However, although monetary support among whites is most likely to go from parents to adult children, elderly blacks are more likely to need help themselves from their adult children (Shapiro 2003: 87).This leaves new generations of blacks living up to a duty to provide for their elders rather than accumulating wealth for themselves and their children. Due to racialization of the state in homeow nership practices, it has been very difficult for blacks to come upon owning a home. Because government policy follows racialized attitudes, the FHA was able to follow â€Å"restrictive covenants† in which they prohibited blacks to move into white neighborhoods, claiming to â€Å"protect† these white communities.Also, the government began to help families buy homes by supporting loans, however these loans would only apply for nicer neighborhoods, where redlining, a process in which bank employees literally â€Å"redlined† bad parts of town, was absent. The result of this was that blacks couldn’t buy homes because the homes they could actually afford were in the redlined areas. The redlined areas often became their homes, where public housing was built after many blacks were condemned to live in their houses after the Urban Renewal Program intended to decrease inner-city slums by pushing them out.Also, construction of new freeways and highways through citi es during the 1950s forced blacks out of their homes (Wilson 1996: 194). Whites now were concentrated in the suburbs, and blacks were left trapped in public housing areas where these structures acted to form concentrations of urban ghettos, where unemployment rates were two-and-one half times as high as whites and annual wages 11 percent lower due to deindustrialization and the migration of jobs to the suburbs (Bobo & Smith 1998: 180).On top of this, the Reagan and Bush administration decreased spending to subsidize cities, proving the shift in the federal government’s support for basic urban programs which had exaggerated the rates of unemployment and social organization in the inner-city neighborhoods (Wilson 1996: 194). Even after racial discrimination became illegal in the 1960s, suburbs diversified among race rather than class, as zoning laws and discriminatory land-use kept blacks out of suburbs because they didn’t allow the construction of apartment buildings or low-income housing (Wilson 1996: 193).Economic detour can be traced back to the fact that blacks have never been in control of the means of production. For blacks wanting to start their own businesses, which would in turn make them able to generate more assets, it has been hard. Even while other people of color have been able to successfully own and run their own businesses, people fail to patronize black businesses. On top of not being able to own their own businesses, blacks have also had to face to the employers who still maintain negative racial attitudes towards blacks during hiring processes, especially involving inner-city residents (Oliver & Shapiro 1995: 198).More than nine-tenths of white parents (91 percent) surveyed hold assets compared to fewer than two-thirds of black parents (94 percent (Shapiro 2003: 81). Among families with positive assets, the financial capacities of the parents of white families are four times greater than those of the parents of black families ( Shapiro 2003: 83). Half of all whites come from families with the ability to deliver head-start assistance versus only a fifth of blacks (Shapiro 2003: 84).Cultural capital is yet another form of inheritance that allows families with ample assets to pass along nonmonetary benefits to their children that give them a competitive edge in school, the job market, and other areas. Cultural capital is typically found where wealth is high (Shapiro 2003: 85). Over the lifetime, whites’ inheritances are on average seven times larger than blacks’ inheritances. Black boomers will inherit 13 cents for every dollar inherited by white boomers.The legacy of grandparents of black baby boomers, who lived and toiled under harsh discrimination and glaringly different conditions, did not include financial resources. We see a glimpse of the racial reality of two generations ago continuing to impose and structure differences onto the present generation of young adults and a generation of chi ldren still coming up. Post World War II economic prosperity benefited whites substantially, whereas blacks still faced discrimination in the work place, therefore they were unable to really save any money.Deindustrialization in the post-World War II period had a profound effect on people living these cities. Many who had worked in manufacturing plants lost their jobs as plants closed and moved their operations in the South, overseas, or elsewhere. These people were forced to find other types of employments, and some became poor (Iceland 2003: 109). Building of low-income projects in already poor inner-city neighborhoods in the post-World War II period, contributed to poverty concentration. Residential segregation interacting with economic change and social alienation, played a key role in the perpetuation of concentrated poverty.National black unemployment is officially above 15 percent and rising while white unemployment is 7. 6 percent (Wright 2012: 142). Because the tactics for maintaining systemic white privilege changed in the 1960s, the rationalizations for explaining racial inequality changed, too. Whereas Jim Crow racism explained blacks’ social standing as the product of their imputed biological and moral inferiority, color-blind racism explains it as the product of market dynamics, naturally occurring phenomena, and presumed cultural deficiencies (Bonilla-Silva 170).