Approachability as a new supervisor Essay Example | Topics and Well Written Essays - 1250 words

Approachability as a new supervisor - Essay Example Approachability: The authentic magnetization of two people based on friendliness and common grounds [1] A very simple and beautiful definition of approachability is given by Scott Ginsberg is; "The word approachability derives from the Latin verb appropriare, which means "to come nearer to." Interesting. It doesn't say anything about the approach-er or the approach-ee. Just "to come nearer to." Approachability is a two way street. It's both you stepping onto someone else's front porch; and you inviting someone to step onto your front porch."[2] A Supervisor in an ideal situation works toward maintaining good and healthy communication between him/her and the rest of the staff in every permutation or combination possible. By ensuring that employees exchange opinions and work related problems, a good supervisor is always in the driving seat to make excellent work group. By dealing with communication as a two way process, a culture based on free opinions and free from conflicts is established. supervisor has many different roles (e.g., organizer, leader, evaluator, director, planner, developer, and resource manager). Supervisor's position allows him/her to combine the talents of employees under supervision to accomplish the objectives of the company. This work group helps to meet two of the most significant challenges - to accomplish the task effectively and efficiently, and to provide fulfilling work experiences that develop employee capabilities and potential. Supervisor works toward identifying common goals of the employees and makes sure that they are occupied in completing those goals. A supervisor has to take entire work force together to achieve professional goals and also inspire the new employees to follow present work culture. He/she should hold an open hand attitude toward others while keeping a strict eye on the workings. Another key personality trait is approachability. This quality is related to your human dimension and to how comfortable that people feel around you. Remember, approachability can be crucial in many situations. Consider scenarios when employees have problems in their work lives or personal lives, when they make mistakes on the job, when they want to discuss their salary and when they want to express concerns about you. Employees also want to approach you with positive feedback and new ideas that can help the organization to improve. If you are not approachable, employees often feel too much distance and discomfort. What is approachability It is a trust between two people that each will be available for the other when needed. Always being open to discuss/help and interact with each other is the central theme of approachability. As one may say, it is a measure of whether the person in question is approachable How easy is the conversation flow with him/her It is how your personality attracts and keeps people wanting to talk to you. In achieving this stage, most important attribute is your attitude and the way you carry yourself among a group. Every person is fond of interesting conversation, and also likes to increase ones knowledge base

Sexual harrassament at work Research Proposal Example | Topics and Well Written Essays - 250 words

Sexual harrassament at work - Research Proposal Example Different countries in various regions of the world have their own interpretation of sexual harassment and what it entails or qualifies to be defined as such. European countries gravitate towards widening the definition criteria to encompass a wide range of aspects like health and safety perspective, discrimination and dignity perspective. There is a need to develop and establish an all-encompassing moral and ethical framework to address, guide and deal with the factors contributing to sexual harassment and/or discrimination in the work place. The creation of a moral and ethical framework to combat sexual harassment in the work place should be conducted under consideration of the underlying factors and issues that create opportunities for sexual harassment to take place. This is in the sense that there exist moral and ethical attitudes in society that promote and/or encourage discrimination based on sex to occur (Boland, 2005). The formulation of an ethical and moral framework to tackle sexual harassment should include other factors like the subordination of women in the work place, and gender disparity (Roa, 2007). Human resource departments and managers should formulate and establish applicable workplace frameworks that address all discrimination manifestations. This will work towards eliminating all contributing factors that predispose individuals to discrimination of any

Empiricism and Connie Essay Example for Free

Empiricism and Connie Essay Although Connie works hard to present the appearance of being a mature woman who is experienced with men, her encounter with Arnold reveals that this is only a performance. She has created an attractive adult persona through her clothing, hairstyle, and general behavior and gets the attention she desires from boys. But Connie confuses her ability to command attention from boys with her desire to actually have them pursue her in a sexual way. The love and romance evident in songs she listens to and images of pop culture that surround her are much different from the reality of adult sexuality. Although Connie does experiment with sexuality, such as when she goes into the alley with Eddie, she is fearful of actually becoming an adult. Arnold Friend takes her by force into adulthood, but this violent act represents a shift within Connie herself: the abandoning of childlike fantasy for the realities of being a mature woman. Although Connie works hard to present the appearance of being a mature woman who is experienced with men, her encounter with Arnold reveals that this is only a performance. She has created an attractive adult persona through her clothing, hairstyle, and general behavior and gets the attention she desires from boys. But Connie confuses her ability to command attention from boys with her desire to actually have them pursue her in a sexual way. The love and romance evident in songs she listens to and images of pop culture that surround her are much different from the reality of adult sexuality. Although Connie does experiment with sexuality, such as when she goes into the alley with Eddie, she is fearful of actually becoming an adult. Arnold Friend takes her by force into adulthood, but this violent act represents a shift within Connie herself: the abandoning of childlike fantasy for the realities of being a mature woman. Although Connie works hard to present the appearance of being a mature woman who is experienced with men, her encounter with Arnold reveals that this is only a performance. She has created an attractive adult persona through her clothing, hairstyle, and general behavior and gets the attention she desires from boys. But Connie confuses her ability to command attention from boys with her desire to actually have them pursue her in a sexual way. The love and romance evident in songs she listens to and images of pop culture that surround her are much different from the reality of adult sexuality. Although Connie does experiment with sexuality, such as when she goes into the alley with Eddie, she is fearful of actually becoming an adult. Arnold Friend takes her by force into adulthood, but this violent act represents a shift within Connie herself: the abandoning of childlike fantasy for the realities of being a mature woman. Although Connie works hard to present the appearance of being a mature woman who is experienced with men, her encounter with Arnold reveals that this is only a performance. She has created an attractive adult persona through her clothing, hairstyle, and general behavior and gets the attention she desires from boys. But Connie confuses her ability to command attention from boys with her desire to actually have them pursue her in a sexual way. The love and romance evident in songs she listens to and images of pop culture that surround her are much different from the reality of adult sexuality. Although Connie does experiment with sexuality, such as when she goes into the alley with Eddie, she is fearful of actually becoming an adult. Arnold Friend takes her by force into adulthood, but this violent act represents a shift within Connie herself: the abandoning of childlike fantasy for the realities of being a mature woman. Although Connie works hard to present the appearance of being a mature woman who is experienced with men, her encounter with Arnold reveals that this is only a performance. She has created an attractive adult persona through her clothing, hairstyle, and general behavior and gets the attention she desires from boys. But Connie confuses her ability to command attention from boys with her desire to actually have them pursue her in a sexual way. The love and romance evident in songs she listens to and images of pop culture that surround her are much different from the reality of adult sexuality. Although Connie does experiment with sexuality, such as when she goes into the alley with Eddie, she is fearful of actually becoming an adult. Arnold Friend takes her by force into adulthood, but this violent act represents a shift within Connie herself: the abandoning of childlike fantasy for the realities of being a mature woman. Although Connie works hard to present the appearance of being a mature woman who is experienced with men, her encounter with Arnold reveals that this is only a performance. She has created an attractive adult persona through her clothing, hairstyle, and general behavior and gets the attention she desires from boys. But Connie confuses her ability to command attention from boys with her desire to actually have them pursue her in a sexual way. The love and romance evident in songs she listens to and images of pop culture that surround her are much different from the reality of adult sexuality. Although Connie does experiment with sexuality, such as when she goes into the alley with Eddie, she is fearful of actually becoming an adult. Arnold Friend takes her by force into adulthood, but this violent act represents a shift within Connie herself: the abandoning of childlike fantasy for the realities of being a mature woman.

The History Of The Marxist Feminist Sociology Essay

The History Of The Marxist Feminist Sociology Essay Feminists fight for the equality of women and argue that women should share equally in societys opportunities and scare resources. Through the ages woman were seen as the production of children, mothers and wives, they do the cooking, cleaning, sewing and washing, they take care of their husbands and are largely excluded from high-status occupations and from position of power. Patriarchy is a society in which the oldest male is the leader of the family, or a society controlled by men in whom they use their power to their own advantage and is the inequality the women experience within the family and background. It is important to outline that not all feminists believe in the same concepts, that is some feminists come from different branches and they have their own ideal concept and ideologies. The development of feminism has led to attention being focused on the subordinate position of women in many societies. Most Feminists tend to see society as divided into different social groups which are: Marxist Feminist Marxist feminist focus on social institutions of private property and capitalism. Marxist see the male domination as the one who provides capitalism to the family while the woman will eventually stay at home to raise the children and supply of labour. Inequality does not stand from the economic system but in the patriarchy. Some argue that there is inequality, but its not man who is causing it or those women are weak but we analyse inequality with a boarder social system. Example: Margaret Benston (1970s) argues that womens labour power in family is unpaid and so they are seen as the secondary breadwinners of the family which result into cheap and easily exploitable labour. To pay woman for their work, even at minimum scale, would result into a massive redistribution of wealth. Mens/ Labourers work must compensate for two people: their own wage and that of the wife. According to Fran Ansley she sees the emotional support given by the wife when her own husband absorbs his own frustration and anger with her. Radical Feminist There are many varieties of radical families, in fact this is a theory of or by woman. The patriarchal or the male domination is the most universal form of domination and society which eventually forms the widest, suffering and deepest female oppression in society, regardless of your economic background, colour, and class. Womens oppression provides a conceptual model for understanding all other forms of oppression. E.g. the focus of Radical Feminists is largely on the violence that women suffer, and their social subjugation through violent behavior inflicted by men. They believe that this is what keeps women oppressed whether they are rich or poor, black or white, educated or illiterate. The focus of Radical feminism is therefore on fighting gender related violence. Separatist Radical Feminist state that there is no point in changing mens behaviour or attitude, woman must be separated from men to lead non-exploitative lives. Example: Delphy and Leonard (1992) see the family as an economic system and it revolves around labour relations in which men will benefit from. Feminists see the family as a way for men to dominate women, men are usually the head of the house hold and benefit from the work that gets done e.g. making dinner, cleaning, bringing up kids and so on. Liberal Feminist Liberal Feminism is based on gender equality which means that both genders should have equal pay, better working jobs condition, education, individual achievement etc. All people are created equal and should not be denied equality of opportunity because of gender. Liberal Feminists focus their efforts on social change through the construction of legislation and regulation of employment practices which should be set by society for girls and boys, and men and women. Gaining job opportunities and being paid and promoted equally in traditionally male-dominated occupations is an important goal to liberal feminist. Someone might ask but what do woman want? Liberal feminism answers: mostly, what men want: to get an education, to make a decent living, to provide for ones family. So, the primary obstacle to equality is sexism which means that there is a belief that the members of one sex are less intelligent, able, skilful, etc. than the members of the other sex, especially that women are les s able than men. In the above paragraph I described liberal feminism in theory of work that focuses more on issues like equality of workplace, in education, in political rights but it is important to outline that liberal feminism looks at situations which are more private. Example liberal feminists tend to support marriage as an equal partnership, and more male involvement when it comes to child care. Another example is that of domestic violence. Ending domestic violence and sexual harassment have to do with removing obstacles to women achieving on an equal level with men. Nowadays liberal feminist see that both genders are becoming equal and that it improved. Example: Jennifer Somerville (2000) encourages realistic policies which results into gender equality. Some modern men are voluntarily committed to sharing in those routines necessities of the family survival, even though men do not take full share of responsibilities. Difference Feminist Some feminist writers might disagree with the above aspects. Instead, they believe that ones experience might be different than that of another individual. For example: they do not believe that all husbands treat there wife badly or are equally disadvantaged in all types of work, or that looking after her children is a stressful thing. They only emphasis on the experience of womanhood by taking into consideration ones variables e.g. beliefs, employment, race, religion etc. still they do believe that woman are oppressed but they do not see it as affecting all women. Example a white rich woman lives in a more comfortable setting than that of a black poor woman.

Water and power consumption: Analysis of sewage treatment plant

Water and power consumption: Analysis of sewage treatment plant 1. INTRODUCTION: Waters unique Characteristics and its essential Role for all life have inspired myths and influenced cultures, religions, art, and literature through all times. The process involved for the RBC Biological Treatment method is named as FIXED FILM ROTATING BIOLOGICAL CONTACTOR BIOWHEELS. In this process by means of rotation of the bio wheels micro organisms are expected to growth in the RBC and the overflow from the Lamella clarifier will be the first stage of the treated water. The micro organisms will develop on the surface of the disk and the colonization of the organisms will take place because of the inlet load into the system. The thick film like formation in the surface of the disk is the indication of the growth. In Sewage water the main constituents of Pollutants being organic in nature these can be digested easily in the RBC. Sewage is created by institutions, residences, and hospitals and commercial and industrial establishments. Raw influent of sewage wastewater includes household waste liquid from the toilets, sinks, showers, kitchens, baths, and so forth that is disposed of sewage waste water. 1.1 Aim: The aim of the project is to Analysis of water consumption and power consumption of sewage treatment plant. 1.2 Objective: * To Analysis the water and power consumption of the sewage treatment plant * To vary the parameters of water source, power source. * To Analyze the Rotating Biological contactor Biowheels.Lamella clarifier * Analyzing 2D design of the Sewage Treatment Plant. * To analyze the results and propose appropriate solution. 2. BACKGROUND RESEARCH: Waste water collected from domestic and industrial communities must be returned to receiving waters or to the land. Although the collecting of storm water and drainage dates from ancient times the collection of waste water can be traced only to the early 1800s. The systematic treatment of wastewater followed in the late 1800s and early 1900s. There are many methods and processes to treat wastewater. The most common approach uses primary treatment (screening and clarification) to remove solids; aerobic, suspended growth, activated sludge secondary treatment to reduce organic pollutants; and chlorine disinfection to reduce pathogens. Secondary treatment is the largest energy consumer (30 to 60% of total plant usage), followed by pumping and sludge processing. Although suspended growth, activated sludge is the most common wastewater treatment process, it is not the most energy efficient. Aerated lagoons, trickling filters and rotating biological contactors are significantly more efficient. They are not as widely used because aerated lagoons require a large land area, and trickling filters and rotating biological contactors are better suited for smaller capacity applications. Many wastewater treatment plants are shifting from chlorine-based disinfection to UV disinfection to eliminate the risk of storage and handling of toxic chemicals. Although UV disinfection is energy intensive, it adds no chemical residue to the effluent. This feature is particularly important for discharge to sensitive aquatic environments or for wastewater reuse. In general, low pressure UV systems are substantially more efficient than medium pressure systems. Energy efficiency opportunities in wastewater treatment include the use of fine bubble diffusers, dissolved oxygen control of aeration, high efficiency blowers, variable frequency drives on pumps and blowers, premium efficiency motors, and the reduction of the head against which pumps and blowers operate. Sewage is generally a mixture of domestic of waste water from bath, sinks and washing machines and toilets, waste water from all industry and rainwater runoff from roads and other surfaced areas. Every day in the UK about 347,000 Kilometers of sewers collect over 11 Billion liters of waste water. This is treated about 9000 sewage treatment works before the treated effluent is discharged to inland waters, estuaries and the sea. Without suitable treatment, the waste water we produce every day would damage the water environmental and creates to affect the public health problems. Untreated sewage contains organic matter carbohydrates, fats and proteins, bacteria and chemicals. Bacteria naturally present in environmental waters do break these substances down, but in doing so they use the oxygen dissolved in this water. If there were large or continuous untreated discharges of urban waste water the result could be too little oxygen for fish and other aquatic life to survive. So the purpose of waste water treatment is to remove organic substances to protect the environment from these effects. Sewage works therefore reproduce what would be occurring in the environmental. Settling out much of the solid matter is called Primary Treatment, and using Bacteria that digest and break down the organic substances is called Secondary Treatment. Sometimes further treatment Tertiary is required to protect sensitive water environments; Tertiary treatment can involve disinfecting the treated effluent to protect the bathing and shellfish waters. It can also involve the removal of phosphorous or nitrates nutrients present in sewage. To protect the waters that is threatened by eutrophication. (ref sewage treatment in the UK defray department for environment food Rural affairs,PB 6655 March 2002.). 3. LITERATURE REVIEW: Municipal water use is generally divided into four categories, 1. Domestic water normally used for sanitary and general purposes 2. Industrial water used for nondomestic purposes, 3. The Public service water normally used for fir fighting, and system maintenance and also municipal landscape irrigation. 4. Unaccounted for system losses and leakage The following data are typical municipal water use in the United States Report. ( (George Tchobanoglous and Franklin L. Burton, 1991) Table 1 Municipalities water use 3.1 Domestic water use:. Domestic water use encompasses the water supplied to residential areas ,and commercial districts, institutional facilities, and recreational facilities as a measured by individual water meters .The uses to which this water is put include drinking, washing, bathing, culinary, and waste removal, and yard watering these kind of water collected from household sewage. Using the average flow values reported in above table of the water used in a municipal water supply system is for domestic purposes. 3.2 Residential areas: The water normally used by residential households consists of water for interior use such as showers and toilets and water for exterior use such as lawn watering and car washing, the household wastewater mostly used in sewage treatment plant. Typical data for interior water use are presented in below table. How much amount of water used in residential areas water use for exterior applications varies widely depending upon the geographic location, climate and time of year and mainly consists of landscape irrigation. The Residential areas 100% of water normally used by typical distribution of residential interior water use the following table given details Table 2 Typical distribution interior water use (George Tchobanoglous and Franklin L. Burton, 1991) 3.3 Commercial facilities: The water used by commercial facilities for sanitary purposes will vary widely depending on the type of activity means example of offices and compared to a restaurant. Typical water use values for various types of commercial facilities are reported in following table also for large commercial water using facilities such as laundries and car washes, careful estimates of actual water use should be made. Table 3 Typical rates of water use for commercial facilities (George Tchobanoglous and Franklin L. Burton, 1991) 3.4 Institutional facilities: Water used by facilities such as hospitals, schools and rest home is usually based on some measure of the size of the facility and the type of housing function provided example of per student or per bed, and water normally use for schools will vary significantly depending on whether the students are housed on campus or are day students. The representative water use values for institutional facilities are reported following table. Table 4 Typical water-use values for institutional facilities (George Tchobanoglous and Franklin L. Burton, 1991) 3.5 Recreational Facilities: The recreational facilities mostly water used in such as swimming pools, bowling alleys, and camps, resorts, then country clubs perform a wide range of functions involving water use. The following table typical water use values are reported. Table: Typical water-use values for recreational facilities (George Tchobanoglous and Franklin L. Burton, 1991) 4. SEWAGE TREATMENT PLANT: 4.1PRINCIPLE: Sewage treatment plant there are two main types of biological reaction, depending upon the presence or absence of free oxygen, the aerobic reaction takes place only in the presence of free oxygen and produces stable, relatively inert end products. Anaerobic reaction are more complex, being two stage, proceeding relatively slowly and leading to end products which are unstable and which still contain considerable amounts of energy. In any biological reaction the energy in the organic matter, used as food by the microorganisms, is split three ways; some is used in creating new microorganisms, some is incorporated in the end products of the reaction, the proportions of energy in the three areas depend upon the nature of the reaction, the type of organic matter, the type of microorganisms,and environmental conditions. The organic matter in wastewater thus provides the well as providing the energy for the oxidation reactions which releases the end products of biological treatment. (THY Teb butt,1990). Domestic sewage satisfies all these requirements but some industrial wastewaters may be lacking in nutrients or other factors, which could result in inhibition of biological activity, Toxic substances present in the wastewater can also mean that biological treatment of an organic wastewater is ineffective, although it is sometimes possible for microorganisms to become acclimated to substances which initially appear to be toxic. The aim of conventional biological treatment processes is to achieve almost complete removal of the organic matter in the feed. The activated sludge system is a common form of dispersed growth reactor, and both systems require a settling facility to remove the excess biological solids produced in the process. In the case of fixed film systems the solids are essentially dead cells, but with the dispersed growth activated sludge systems the bulk of the cells are living and are returned to the reactor for re use, only the excess solids being removed. (THY Tebbut t,1990). Characterstics of waste water sewage treatment plant:  · Bio chemical oxygen demand  · Total dissolved solids  · Chemical oxygen demand  · Total suspended solids  · PH  · Bio chemical oxygen demand: It is a measure of the amount of oxygen that bacteria will consume while decomposing organic matter under aerobic conditions.  · Total dissolved solids: It comprises inorganic salts and small amounts of organic matter that are dissolved in water. The principle constituents are usually the captions , calcium, magnesium, sodium, and potassium and the anions carbonate, bicarbonate, chloride, sulphate and particularly in groundwater nitrate.  · Chemical oxygen demand: It is a measure of the total quantity of oxygen required to oxidize all organic material into carbon dioxide and water. * Total suspended solids: It is a measure of the suspended solids in waste water, effluent, or water bodies determined by tests for Total suspended non-filterable solids.  · PH: It is a measure of the acidity or alkalinity of a solution numerically equal to 7 for neutral solutions increasing with increasing alkalinity and decreasing with increasing acidity. The PH scale commonly in use ranges from 0 to 14. ( www.answers.com ) Classification of Waste Water Treatment Methods The wastewater treatment is contaminants are removed by physical, chemical and also biological methods. Sewage Treatment Plant individual methods usually are classified as a physical unit operations, chemical unit operations and also Biological unit operations and processes. Although these operations and processes occur in a variety of combinations in Treatment Systems. (George Tchobanoglous, FranKlin L.Burton, 1991,1979,1972) 4.2 Physical operations unit: The Treatment methods in which the application of physical forces to predominate are known as physical operation unit. Because most of these methods involved directly from the first observations of a nature, and they were the first to be used for wastewater .treatment. These are the Screening, Mixing, Flocculation, Flotation,sedimentation,Filtration,and Gas transfer are typical unit operations. (George Tchobanoglous, FranKlin L.Burton, 1991,1979,1972). Screening: The first off all unit operation entered in wastewater treatment plants is screening .a screen is a device with openings ,generally of uniform a size, that is using to retain the coarse solids found in wastewater. Description: The screening elements may consists of parallel bars, wires or ,grating, rods, mesh, or perforated plate ,a screen composed of parallel bars or rods is called a bar rack sometimes called a bar screen). The term screen is used for screening devices consisting of perforated plates wedges wire elements and wire cloth. The materials removed by these devices are known as screenings. Bar Racks: In Wastewater treatment, bar racks are used to protect the Pumps pipelines valves and other appurtenances from the damaged or clogging by a rags and large objects. Screens: Sewage treatment plant is widely used to Barscreening,early screens were of the inclined disk or drum type, whose screening media consisted of bronze or copper plates with milled slots ,and were installed in place of sedimentation tanks for primary treatment .since the early 1970s,there has been resurgence of interest in the field of wastewater treatment in the use of screens of all types ,the application range from primary treatment to the removal of the residual suspended solids from biological treatment processes. (George Tchobanoglous, FranKlin L.Burton, 1991,1979,1972) Mixing: Mixing is an important unit operation in many phases of wastewater treatment including (1)the mixing of one substances completely with another, (2)the mixing of liquid suspensions,(3)the blending of miscible liquids,(4)flocculation and (5)heat transfer .chemicals are also mixed with sludge to improve tidal watering characteristics. In anaerobic digestion, mixing is used accelerate the biological conversion process and to heat the contents of the digester uniformly . Description Apparatus: Most mixing operations in wastewater can be classified as continuous rapid or continuous. Continuous -rapid mixing is used most often where one substance is to be mixed with another. Continuous mixing is used where the contents of reactor or holding tank or basin must be kept in suspension. Energy dissipation mixing: The power input per unit volume of liquid can be used as a rough measure of mixing effectiveness, based on the reasoning that more input power creates greater turbulance,and greater turbulence leads to better mixing. Sedimentation:: It is one of the most widely used in waste water treatment, sedimentation is the separation from the water, by gravitational settling, of suspended solids that are heavier than water, it is one of the most widely used unit operations in wastewater treatment .A Sedimentation basin may also be referred to as a sedimentation tank, settling basin ,or settling tank, Sedimentation is used for grit removal, particularly floating matter removal in the primary settling basin, biological float removal in the activated sludge and settling basin and chemical flog removal. Whenever the chemical coagulation processes is used. 4.3 Chemical unit processes: Sewage treatment plant is widely used to chemical unit processes ,This Treatment Methods in which the removal or conversion of the contaminants is brought about by the chemicals or by other chemical reactions are known as a chemical processes unit. There are three different types chemical processes used in the wastewater treatment.Precipitation,and disinfection and adsorption, which the process mostly used in the wastewater treatment. In the chemical precipitation ,treatment is also accomplished by producing a chemical precipitate that will settle. In most cases the settled precipitate will contain the both constituents that may have reacted with the adding to chemicals and the substance that were swept of wastewater as the predicated settled in the water. (George Tchobanoglous, FranKlin L.Burton, 1991,1979,1972) 4.4 Chemical coagulation: The settlement of fine colloidal and suspended solids can be assisted by the use of flocculation as but with dilute suspensions, such as lowland river waters, the opportunities for collisions and agglomeration are limited. In such circumstances flocculation does not significantly improve the settling characteristics of the suspension. the addition of a chemical coagulant, which precipitates flocculent solids in the water, followed by flocculation and sedimentation, can provide a high degree of clarification. the processes of chemical coagulation is thus carried out in a sequence of operations, the first of which involves rapid to permit enmeshment of the colloidal solids in the rapidly precipitating flock. (THY Tebbutt, 1990) Following the initial stage precipitation stage, the suspension is passed to flocculation and sedimentation units, which may be separate or combined. the most popular coagulant for potable water treatment is aluminum sulphate, often referred to as alum. When it is added to water in small doses of around 20-50mg/l,a reaction takes place with the natural alkalinity present, and insoluble aluminum hydroxide is formed. this responds well to controlled flocculation. The chemical reactions which occur are complex but may be simplified as Al2(SO4)3 +3Ca(HCO3)2 = 2Al(OH)3 + 3CaSo4 +6CO2 When using the commercial alum which has 16-18 molecules of water of crystallization, and expressing alkalinity in terms of calcium carbonate, each mg/l of alum reacts with 0.5mg/l of alkalinity. By using a range of coagulant does and PH values ,it is possible to determine the optimum conditions to achieve the required water quality. (THY Tebbutt, 1990) Chemical precipitation: In essence ,chemical precipitation depends upon the use of an added reagent which combines with the impurity to be removed to give an insoluble product which can then be removed by sedimentation, preceded by flocculation if necessary. A(impurity) + B(reagent) = C (precipitate) + D(by product) It is clearly essential that any byproduct of the reaction does not itself have undesirable properties in relation to the eventual use of the water or wastewater. It is also important to remember that chemical precipitation processes produce sludges containing the impurities and that the cost of handling and disposing of these sludges in a safe manner can be significant. (THY Tebbutt, 1990) Disinfection: Disinfection refers to the selective destroy of disease causing organism .all the organisms are not destroyed of during the process; this differentiates disinfection from sterilization, which is the destruction of all organisms. In the field of waste water treatment, there are three categories of human enteric organisms of the greatest consequence in producing disease are viruses, bacteria, and amoebic cysts. Disinfection is widely used to wastewater sewage treatment plant; there are well -established links between the contamination of drinking water with facial matter and the incidence of such water related diseases as cholera, typhoid and many gastrointestinal infections. Thus the removal of the pathogenic microorganisms from water supplies is a very valuable measure for the improvement of public health. Disinfection means the destruction of pathogenic microorganisms and does not necessarily mean that the water is sterile, since a small number of harmless microorganisms are usually present in tap water and poses no hazard. For most disinfection the rate of kill is given by dN/dt = -KN where k = rate constant N = number of living microorganisms The rate constant varies with the particular disinfectant, its concentration, the organism being killed,PH,Temperature,and other environmental factors. (THY Tebbutt, 1990) 5. Biological unit processes: Sewage Treatment plant is widely used to Biological unit processes ,this is processes is remove the microorganism of the water, In this Treatment methods in which the removal of contaminants is bring about by biological activity are known as a biological unit processes. Biological treatment is used primary to remove the biodegradable organic substances matter (means colloidal or dissolved )in wastewater.Basically,these substances matter are converted into the gases that can be escaped to the atmosphere and into the biological cell tissue unit that can be removed by settling. At the same time this treatment is also used to remove the nutrients (means nitrogen and phosphorous) in wastewater. (George Tchobanoglous, FranKlin L.Burton, 1991,1979,1972) 5.1 Components of wastewater Flows The components of the wastewater flows that make up the wastewater flow from a community depend on the type of collection system used and may include the following: There are four types of wastewater flows available in the wastewater treatment. 1. Domestic (is also called sanitary) wastewater. This is kind of wastewater discharged from residences and from commercial,instutional , and house hold sewage toilet waste water, bath, sinks ,and canteen wastewater and similar facilities. 2. Industrial wastewater .this kind of wastewater in which industrial wastes predominate. 3. Infiltration/inflow .water that enters the sewer system through the indirect and direct means. The Infiltration is extraneous water enters that the sewer system through the leaking joints. 4. Storm water. Runoff resulting from rainfall and snowmelt. This kind of components of wastewater flows essentially used in the sewage treatment plant. 5.2 Waste water treatment: There are four different types of wastewater processing in available in sewage treatment plant. Primary treatment referred to physical unit operations. Secondary treatment referred to chemical and Biological unit process, and also Advanced or tertiary referred to combinations of all four other processing.  · Preliminary wastewater treatment: Preliminary wastewater treatment is defined as the removal of wastewater constituents that may causes to maintenance of the operational problems with the treatment of the operations. Examples of preliminary operations are screening and commutation for the removal of debris (J.Staudenmann, A. Schonborn, C. Etnier, 1996).primary wastewater treatment: In primary wastewater treatment, a portion of the suspended solids and organic material is removing from the waste water. This removal is usually accomplished with physical operations such as screening and sedimentation. The effluent from primary treatment will ordinarily contain considerable organic matter and will have relatively high BOD.treatment plants using only primary treatment will be phased out in the future as implementation of the EPA secondary treatment requirements is completed. Rare instances (for those communities having a secondary treatment waiver)will primary treatment be used as the sole method of treatment .the principal function of primary treatment will continue to be as a precursor to secondary treatment . * Conventional secondary wastewater treatment: The secondary treatment is directed principally toward the removal of bio degradable organics and suspended. Disinfection is included frequently in the definition of conventional secondary treatment is defined as the combination of processes customarily used for the removal of these constituents and includes biological treatment by activated sludge fixed film reactors, or lagoon systems and sedimentation.  · Advanced wastewater treatment/wastewater reclamation: Advanced wastewater treatment is defined as the level of treatment required beyond conventional secondary treatment to removing constituents of concern including toxic, nutrients, compounds, and larger amounts of organic material and suspended solids .In addition to the nutrient removal processes, unit operations or processes frequently employed in advanced wastewater treatment are chemical coagulation, flocculation, and sedimentation followed by filtration and multi grade filter and also activated carbon filter. (George Tchobanoglous, FranKlin L.Burton, 1991,1979,1972). 6. STP BASED ROTATING BIOLOGICAL CONTACTORS: 6.2 Principle: A Rotating biological contactor (RBC) is constructed of bundles of plastic packing attached radically to a shaft, forming a cylinder of media .the shaft is placed contour bottomed tank so that the media are submerged approximately 40 percent. the contactor surfaces are spaced so that during submergence in wastewater can enter the voids in the packing .when rotated out of the tank ,the liquid trickles out of the voids in the packing. when rotated out of the tank the liquid trickles out of the voids between surfaces and is replaced by air. A fixed film biological growth, similar to that on a trickling filter packing, adheres to the media surfaces. Alternating exposure to organics in the wastewater and oxygen in the air during rotation distributor. Excess the biomass sloughs from the media and is carried out in the processes effluent for gravity separation. A treatment system consists of primary sedimentation preceding and final sedimentation following the rotating biological contactors. Since the recirculation through RBC units is not normally practiced, only sufficient underflow from the final clarifier is returned to allow removal of excess of the biological solids in primary sedimentation and waste sludge similar to the character to the from trickling filter plant ,in withdrawn from the primary clarifiers disposal of waste. In large type of plants, a common shaft is placed over a contoured tank with the wastewater flow parallel to the shaft. A series of four stages are normally installed in the treatment of domestic wastewater for BOD reduction. additional stages may be added to initiate nitrification .Each stage acts as a completely mixed chamber and the movement of the wastewater through the series of tanks simulates plug flow. Biological solids washed off of the media are transported hydraulically under the baffles to be carried out with the effluent.RBC units are protected by installation either in a building with adequate ventilation or under separate plastic covers lined with insulation. The efficiency of BOD removal of in the processing domestic wastewater is based on empirical data from operating RBC plants. the Mathematical equations also have been developed ,but their prediction of the performance is not consistently reliable. the typically recommendations for secondary treatment of domestic wastewater to produce an effluent of less than 30 mg/l of BOD and also 30mg/l of suspended solids. (Mark J.Hammer Mark J.Hammer,Jr, 1996) TECHNICAL DETAILS OF RBC: DESCRIPTION MOC / MAK 1. Polymer sheet die 2m x 2 thk special polymer from Germany 2. RBC Trough poly propylene /FRP 3. RBC Support MS Resin Coated 4. Geared Motor (0.75HP) FLENDER 5. Input Coupling Love Joy 6. Drive Support Mild Steel 7. Bush Nylon 8. Shaft SS304 TANK SCHEDULE OF RBC : The following tanks used in sewage treatment plant based Rotating Biological contactor Processes. 1. Bar screen 2. Collection Tank 3. PIT 1,2,3 4. Flow divider 5. Sludge drying bed 6. Semi Treated water tank 7. Multi grade sand filter 8. Activated carbon filter 9. Treated water tank EQUIPMENT SCHEDULE The following equipments used in sewage treatment plant based Rotating Biological contactor processes. DESCRIPTION MODEL/HP QTY RBC 0.75 hp 1 Submersible Pump 1 Hp 2 Submersible Pump (Lamella) 1 Hp 1 Filter feed submersible pump 3 Hp 2 7. ROTATING BIOLOGICAL CONTACTOR PROCESS(60 KILO LITRE PER DAY): 2D 8. WATER CONSUMPTION ANALYSIS OF SEWAGE TREATMENT PLANT: Raw sewage characteristics: Domestic waste water: The volume of a wastewater from a community varies from 50 to 250 gal capital per day depending on the sewer system uses. A common values for domestic wastewater flow is 120 gpcd means 450 liter person per day use, which assumes that the residential waste water have modern water using appliances, such as automatic washing machines. the organic substances matter contributed per person per day in domestic wastewater is approximately 0.24 lb to 110gram of suspended solids and 0.20lb and 90 gram of BOD in communities where a substantial portion of the household kitchen wastes is designed is discharged to the sewer system through garbage grinders. In selection of data for design, the quantity of and organic strength of wastewater should be based on actual measurements taken through the year to account for variations resulting from seasonal climatic changes and other factors. the average values during the peak month may be used for design ,excluding un usual infiltration and inflow, the av erage daily sanitary wastewater flow during the maximum month of the year is commonly 20 to 30 percent greater than the average annual daily flow, excluding seasonal industrial wastes, the average daily BOD load from sanitary wastewater during the maximum month is greater than the annual ave

Chocolate Store :: Factories Jobs Employment Essays

Chocolate Store Rocky Mountain Chocolate Factory or RMCF for short is a franchise store with the parent company located in Durango, Colorado which was established in 1981.There are many different Rocky Mountain Chocolate Factories around the U.S. and there are a few in Michigan.There is the one I work at in Somerset Mall in Troy, one at Lakeside Mall in Sterling Heights and another one at Great Lakes Crossing to name a few.The particular store that I work in has been there for 3 Â ½ years (since Somerset North has opened) and was previously owned by a man for about a year and a half when he decided to sell it to the current owner and my boss Alan Rosen.The store is located in Somerset Mall on the North side on the 1st level between the California Pizza Kitchen (CPK for short) and Starbucks. Somerset Mall has two sides to it, the South side that is the older of the two and the North side, which just opened in August of 1997.The sides are divided by Big Beaver Road and connecting the two sides is a glass covered walkway so people can go from ones side to the other without having to drive.It is located in the business district of Troy on the crossroads of Big Beaver and Cooliage.Somerset has a mostly upper to middle class cliental that frequent it.The South side is the more conservative side where you can find stores such as Saks 5th Avenue, Neiman Marcus, Tiffany’s and many more.This side is more for the older well to do people because it is the more expensive of the two sides.The North side, where I work, has a more contemporary vibe to it.There you will find stores such as Hudson’s, Nordstrom’s, Abercrombie & Fitch, Express, and a lot of others.This is where most people shop because it has everything from a food court and restaurants to trendy store s to a stage where plays are put on and right now a place to visit Santa.Compared to other malls Somerset is more snobby some would say because when you go there you feel like you have to dress nice just to go shopping.While other malls like Oakland Mall, also located in Troy, say you can feel comfortable there even if you shop in your P.J.’s. RMCF is a medium sized store and as you walk into it through a set of double glass doors, on the left will be all of the various caramel apples that we make about every other day and if is really busy we make it everyday so they are fresh.

Perils Of Obedience :: essays research papers

The Perils of Obedience This experiment is a test to see if people are naturally aggressive. Milgram does not believe that people are naturally aggressive. Although some people think people are naturally aggressive. Ordinary people can be part of a bad course of actions without having any anger toward then victim. In finding that people are not naturally aggressive. Milgram now alters the experiment to find out why do people act the way they do. He compiled the experiment to answer, why do people obey authority, even when the actions are against their own morals. One reason is to please authority. People in general like the feeling they get when they are doing a good job. Even though they know what they are doing is morally wrong, the way they tried to justify themselves is by verbally disagreeing. By doing this they feel that they are "on the side of the angels". A lot of people do not have the ability to disobey authority. Another reason people obey is that they have a sense of obligation to their duty. This is just the whole idea of completing the job that’s given to you. Some people have a fear of being perceived as brash, or rude. In general, people want to present themselves in the best way possible. Civilian obedience also comes from the sense that the responsibility for the victim is not their own. Since they do not have the blood on their hands, so to speak, their actions do not effect them. It was found that the reasons for obedience are not only psychological but sociological as well. Milgram provides the idea of division of labor. As long as the product comes from an assembly line, there is no one person to blame.