Article Public Opinion of Police by Different Ethnic Group Essay

Down though the years there has always been tension and an on and off relationship between the community they serve and law enforcement agencies. And as with any relationship between two people there are misunderstanding, break-up and disagreements and the same is with the relationship between the community and its law enforcement agencies but just with any relationship at day’s end both the community and law enforcement have and share common concerns such as justice and deterrence. With many of communities in America being incursion of immigrants within the last few decades; with this incursion of immigrants many communities are being bombard with so many new language and cultures diversity. Because of this wide range of ethnicity now living within many the walls of our communities and society on a whole now have different opinions and views of law enforcement. Now due to the various ethnicities flooding our communities the author will investigate how a few of these ethnicity groups like: African Americans, Asians and the Hispanics neighborhoods views racial profiling, discrimination and past experience with law enforcement agencies. Taking a look at the traumatized relationship and association between the two, as well as the interaction and reaction from the law enforcement agencies and the communities they serve. Since the conception of the law enforcement agencies race has long since been a vital playing card in policing. Even with the knowledge, awareness and understanding of this there has been some improvement but not enough. Racial opus of law enforcement alongside the racial outline of arrest, the raise in the number of arrest of non- minority like â€Å"Caucasian† by non-white law enforcement officers, while there were lower numbers of arrest by the same officers on other ethnic groups. On the flip side of that coin, more â€Å"Caucasian† officers had a boost in the number of non-white arrest in comparison to the number of arrest involving â€Å"Caucasians†. Race has been a polarizingelement the in the society of America for years. And this is every so prevalent within the criminal justice system. Clashes involving both the communities and law enforcement are the flashpoint for practically every current inner- city riot. Ethnic Groups. The raise of culture variety and immigration has from time to time made interaction with law enforcement difficult. Hispanics and Asian neighborhoods are often apprehensive of law enforcement officers due to their past occurrence. Their past incidents vary from their motherland of origin that was overwhelmed by civil unrest and war. This included exploitation of power by those of authority as well as much dishonesty within law enforcement agencies of that country. For this cause many minorities groups have a apprehension and more often than not an aversion to law enforcement officers. Like within the Hispanic neighborhoods, they often feel that law enforcement agents differentiates them by racial profiling them all because of their nationality. In Arizona this is a very contentious SB 1070 unlawful migration bill that passed given law enforcement agents the power and authority to inquire of certain individual (Hispanic) of proof of documentation of legal right to be in America. This law is being adopted in other states as well like New Jersey and Texas, any where there is a high population of Hispanics. IthasbeenreportedbytwoethnicgroupsAfricanAmericansandHispanic/Latinos affirm subordinate levels of agreement concerning their relationship with police officers as compared to those of their counterpart â€Å"Caucasians†. African Americans and Hispanic/Latinos claims that there is less willingness to obey and to follow orders given by authorities especially of Caucasian origin. Racial profiling has consistently been one of the most confounding, divisive and controversial issues the police department confronts. A perception that police target members of specific ethnic or racial groups creates a deep divide between the police and the communities we serve. But as an officer who has spent a lot of time patrolling the city’s streets, I just don’t think the perception is accurate. (Dutta, 2010) True racial profiling, in which people are targeted solely because of race or ethnicity, is both illegal and immoral. It destroys public trust and reduces the effectiveness of the police. There is no place for it in law enforcement. And I firmly believe that most LAPD officers support that viewpoint. Even the reported statement of the officer that he couldn’t do his job without racial profiling was most likely misinterpreted. (Dutta, 2010) Differentiation between minorities and Caucasians is how they relate and response to law enforcement agents and how fairly or unjustly he or she feels their treatment was. This is a how many African Americans and Hispanic/Latinos responded when asked by authorities regarding their relationship with law enforcement agencies this is less equality than when Caucasians reported. Reference: Dutta, Sunil, Los Angeles Times, Criminal Profiling vs. Racial Profiling 11- 22- 2010 Retrieved 05/20/2013 http://articles. latimes.com/2010/nov/22/opinion/la-oe-dutta-racial-profiling-20101122 Newport, Frank, Gallup News Service, Racial Profiling is Seen as Widespread, Particularly Among Young Black Men, 12-11-1999 Retrieved 05/20/2013 http://www. gallup. com/poll/3421/racial-profiling-seen-widespread-particularly-among- young-black-men. aspx Maxson, Cheryl, Hennigan, Karen,Sloane, David C. ,Factors That Influence Public Opinion of the Police ,06, 2003 : Police discipline and misconduct, community policing, and media. Retrieved 05/20/2013 -http://www. nij. gov/pubs-sum/197925. htm.

Closing The Deal Example

Closing The Deal Example Closing The Deal – Coursework Example Closing the Deal Closing the Deal a. Negotiation skills in closing the deal include being in a position to develop an agreement template ensuring the proper memorization of vital aspects of a negotiated deal (Carrell & Heavrin, 2008). The second skills in closing a deal involve the ability to have an understanding of the measures that allow a person to have value/retain value in the closing a deal in a negotiation. The third skill involves the identification of factors causing a stalemate and ways to overcome the stalemates with the fourth skill being ability to know bargaining traps and avoid falling to them in closing the deal. The fifth negotiation skill is using skills to build a relationship between negotiating parties. I would apply the five negotiation skills in closing a deal on supply of electronic devices to a cyber cafà © through writing down a template on the main aspects of the deal in terms of the provision of devices, timelines, and payments, among other pertinent iss ues. Having value in the negotiation will be ensured by providing a limit under which the service cannot be provided to ensure the purpose and profitability of the service are met fully. Understanding the possibility of the software or other characteristics of the devices that could be causing the stalemate and providing reasonable assurances and benefits offer the competition will allow in overcoming stalemates. Bargaining traps, in this case, could be the client negotiating for additional services that would water-down profits or increase costs including provision of free software for the company. Being vigilant for these traps and staying on course in the negotiation will allow for closing the deal. Despite hard stand on prices, providing other ways for profitability by the company including additional service at no extra cost like repairs and recycling of electronic devices will allow for the creation of a relationship between the two parties. b. Importance of an agreement templ ate An agreement template is important because it allows for recording a decision made in the negotiation, amount of payments, and time-frame for completion of the activities allowing for success in performance of functions relating to the deal (Young, 1991). A written agreement best serves in generating commitment to an agreement because it provides a framework for a party to seek alternative measures to achieve its end of the bargain through the court system and other conflict resolution mechanisms since a written agreement template is admissible. Written agreement acts as a reminder and benchmark to performance. ReferencesCarrell, M. R. & Heavrin, C. (2008). Negotiating essentials: Theory, skills, and practices. Upper Saddle, NJ: Pearson Prentice Hall.Young, H. P. (1991). Negotiation analysis. Ann Arbor, Mich: University of Michigan Press.

Verb Words

Verb Words Verb Words Verb Words By Sharon Im always interested in words that relate to a particular area. A couple of weeks ago, I looked at words for book lovers. Now its time to think of words about words. In this case, Im concentrating on one particular Latin root, verbum, the Latin word for word. That has spawned a number of other words in English, such as: verb (14th century, meaning word) verbal (relating to words, oral, relating to verbs) verbalism (an expression, phrase or word; an emphasis on the importance of words; a cliche) verbalist (someone who deals in words instead of facts, or who is skilled in using words) verbalize (to put into words, or to change a word into a verb) verbatim (word for word) verbiage (excessive and meaningless use of words) verbose (wordy) Here are some quotations from newspapers: by of all purists The New York Times (Youve come a long way, baby): It is complained that the President is too verbose and too vague. But this is to miss entirely the point of popular acceptance. In the Presidents misty language (www.nytimes.com) time, for then we had nothing to lose and a vision to gain. Today it is not quite the same. It is a time of tons of verbiage, activity, and consumption. Which condition is better for the world at large I will not venture to discuss. But (www.theguardian.com) Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Vocabulary category, check our popular posts, or choose a related post below:Yours faithfully or Yours sincerely?For Sale vs. On SaleAppropriate vs. Apropos vs. Apt

Analysis of the book Night by Elie Wiesel Essay Example | Topics and Well Written Essays - 750 words

Analysis of the book Night by Elie Wiesel - Essay Example Elie Wiesel is one such survivor, whose post-liberation life would be filled with mental anguish. In his seminal book Night, first published in Yiddish in 1955 and later appeared in English in 1960 we evidence how his faith in God as well as faith in humanity is challenged by the grave circumstances faced in German ethnic cleansing operations. The following passages will analyze how Wiesel’s faith in God and humanity is shaken to the core in the face of compelling circumstances and consequences. In a poignant passage in the poetically assembled book, Wiesel notes how, at one point during the life in the ghetto, taking care of his ailing father becomes burdensome. Already weakened by severe malnutrition and mental disorientation, his mind loses perspective and emotional connection with his father. He simply does not have the resources of empathy and solidarity to be able to care for another human. It makes him lament the forceful encampment that was the beginning of the great long ordeal: â€Å"Never shall I forget those moments which murdered my God and my soul and turned my dreams to dust. Never shall I forget these things, even if I am condemned to live as long as God Himself. Never.† In a tragic turn of events, his father would be beaten to death by German guards, just two weeks before American army liberated his camp. Wiesel could hear the final shrieks of pain from his father from his slot in the upper deck. But he could not venture a thought or an action to mitigate his suffering. Even sacrificing his own life for his once beloved father was beyond him. This is a key passage in Night, for it reveals how the Holocaust had stripped the humanity of the victims as well. The â€Å"loss of humanity† with respect to the Holocaust, is thus, equally witnessed in the perpetrators and the victims of the great crime. Hence, much in contradiction to preaching in the covenant, Wiesel fails to take care of fellows of his community, most notably his father. But Wiesel’s is not the universal case, for there are those exceptional individuals who could must spiritual and physical resources to offer themselves in service to other weaker members of the ghetto. This d ifference in behavior is not a consequence of moral convictions or volitional choices of the ghetto inmates. Rather, they just showcase the manifest act of God through the lives of the faithful. The following passage highlights how the inmates of the ghetto encouraged each other during grave times: â€Å"There's a long road of suffering ahead of you. But don't lose courage. You've already escaped the gravest danger: selection. So now, muster your strength, and don't lose heart. We shall all see the day of liberation. Have faith in life. Above all else, have faith. Drive out despair, and you will keep death away from yourselves. Hell is not for eternity. And now, a prayer - or rather, a piece of advice: let there be comradeship among you. We are all brothers, and we are all suffering the same fate. The same smoke floats over all our heads. Help one another. It is the only way to survive.†Ã‚  (Wiesel, 1960) Elie Wiesel’s was brought up in an orthodox Jewish community tha t gave emphasis to religious observance and faithful understanding of the scriptures. This pre-eminence to God and belief in His benign will would be challenged to the core as Wiesel and other Jews are pushed ever further into the systematized abyss. But, instead of abandoning his faith completely, Wiesel gets new illuminations into his faith. In many ways, the experiences in the ghetto

Abortion Essay Example | Topics and Well Written Essays - 500 words - 18

Abortion - Essay Example According to Peter Singer’s argument, human beings have a certain property that makes it morally wrong to kill them. The inherent property possessed by human beings increases their value and arguably overcomes any decision aimed at terminating life. However, infants do not possess the same property. Therefore, the fact that the properties are not evident in infants, Singer deduces that this does not make it morally wrong to kill them. He conversely considers the fact that some people who may have valued the infant may feel wronged. Such bestowing of value to infants by a section of the society emanates due to diversity in thoughts and believe. From the analysis this argument as presented by Singer, it is clear that it is based on the fact that he is of the opinion that killing an infant is less serious compared to killing a person. Therefore, it is correct inference that according to Singer, infants are less human and do not possess the same fundamental rights enjoyed by human beings (Lodp, 2013). Singer also advances the notion that infants who are rejected because they are physically handicapped are better off dead. Critical analysis of this sentiment shows that Singer believes that unwanted infants should not be subjected to the suffering that comes along with being raised in a hostile society or family. Instead of being discriminated on the basis of their physical appearance, abortion is a better remedy to the problem of infants being physically disabled. Therefore, Singer fundamentally supports his arguments by referring to the contemporary plight of human beings. From his illustrations on the development of the fetus during the early stages of pregnancy development, Singer tries to prove that the fetus cannot be harmed by not being brought into existence. His assumption is that, during the early stages of development, the fetus is not a fully grown life form or human being that can feel the pain of being killed. Singer has

Management. Views of Fayol and Mintzberg Essay Example | Topics and Well Written Essays - 1500 words

Management. Views of Fayol and Mintzberg - Essay Example This research paper explains what management is and examines basic management theories and definitions to compare and contrast each of them with others. This paper addresses management as an organizational function as well a topic for academic research and study. Management Managing is an extremely important and perhaps one of the most challenging activities in today’s complex society and especially in the contemporary business contexts. Various factors and forces such as globalization, competition, quality-concerns of customers about goods and services, changes in consumer requirements etc make ‘managing’ a more challenging and rather highly rewarding task. Management is generally defined as an ‘art of getting things done through others’ (Dessler and Phillips, 2007, p. 4). This definition by Herold Koontz denotes to various underlying concepts of managing such as delegation of authority, planning for some things to be done and executing them through people and available resources and coordinating and controlling it. Management is an art, science, technique, method, process or strategy by which people work with others and available resources to help the organization reach its destination. Management is therefore a goal oriented process. As Bateman and Snell (2003) described, management is the process or practice by which people (managers) work with other people and resources in order to accomplish the already set goals of the organization both effectively and efficiently. To be efficient means to achieve goals and organizational objectives with minimal waste of resources by making best use of money, time, technology, materials and people, whereas effectiveness refers to achieving the right organizational goals at right time through right ways. Managers do things differently with effective strategies and techniques and by using the organized knowledge that in turn help them make their organizations unique and ultimately successfu l. The general management thought can be affected largely by demographic, geographic and social influences from business to business. However, management theories and definitions are still applicable to varying situations in firms around the world. In today’s complex business contexts, it is very evident that management is merely the process of managing the total resources of an organization. Herold Koontz’s definition talks about delegation of authority and making people work for getting in to the ultimate goals. It is thus related to how effectively managing both people and other resources. People are used by managers to get their things done through. They moreover effectively and efficiently utilize the available materials as well. When it comes to the management practices in place today, Bateman and Snell (2003) argued that no manager is always right or always wrong, but some managers are getting it in to the right path more often than some other managers are doing (p. 6). Views of Fayol and Mintzberg In management study, the views of Henry Fayol and Henry Minzberg have gained considerable attention as their studies and findings have explored management as a function and role that managers do. Henry Fayol, famously renowned as father of modern management, defined management as â€Å"to forecast and plan, to organize, to command, to coordinate and to control† (Cole, 2004, p. 6). He asserted that management was characterized by five specific functions; that are planning, organizing, commanding,

The Importance Of Water Recycling Environmental Sciences Essay

The Importance Of Water Recycling Environmental Sciences Essay The aim is to review the importance of water recycling and the unending effects of hard water all round us. Objective is to achieve a clear understanding of the present and future benefits of water recycling and why it is still practised today. A number of up-to-date water recycling tehnologies are studied to an extent. The perpetual need for the various solutions in softening hard water is looked into retrospectively carefully highlighting typical problems likely to occur. Water is a common substance that is essential to all forms of life. A massive 75 percent of planet earth is covered in water and is mostly found in oceans and large water bodies. Of this total volume of water, 97 percent is saltwater and 3 percent is freshwater. 69 percent of this freshwater is glacial and 31 percent is groundwater. For billions of years, earth has been reusing water over and over again in a natural process called the hydrologic cycle (BENEFITS OF RECYCLING., 2010). This cycle is the path water takes as it circulates from the land to the sky and back again. 1.1 Water Recycling Water recycling is a natural process which relies on technology to speed up such projects. It is sometimes described as unplanned and planned (GREYWATER RECYCLING SYSTEMS., 2010). By unplanned, this means for example, when cities draw their water supplies from rivers that receive waste water upstream from these cities. Water from these rivers has been reused, treated and piped into the water supply a number of times before the last downstream use withdraws the water (GREYWATER RECYCLING SYSTEMS., 2010). However, that of planned water recycling projects is developed with the aim of reusing a recycled water supply. Recycled water is waste water that has been treated and processed for useful nonpotable purposes such as agricultural, landscape, public parks, and golf course irrigation (GREYWATER RECYCLING SYSTEMS., 2010). Other nonpotable applications include cooling water for power plants and oil refineries, industrial process water for facilities such as paper mills and carpet dyers, toilet flushing, dust control, construction activities, concrete mixing, and artificial lakes (GREYWATER RECYCLING SYSTEMS., 2010). In an industrial facility, water is recycled and reused onsite used in cooling processes for example (GREYWATER RECYCLING SYSTEMS., 2010). Although most water recycling projects have been developed to meet the demands of nonpotable water, a number of them use recycled water indirectly for potable purposes (GREYWATER RECYCLING SYSTEMS., 2010). These projects include recharging ground water aquifers and augmenting surface water reservoirs with recycled water (OASIS DESIGN., 2009). Recycled water can be spread or even injected into ground water aquifers to augment ground water supplies, and to prevent salt water intrusion in coastal areas. Environmentally, water recycling provides tremendous benefits. Water recycling can help us find ways to reduce the diversion of water from sensitive ecosystems by providing a supplementary source of water. The lack of sufficient water flow, as a result of diversion for agricultural, urban, and industrial purposes, can cause impairment of water quality and ecosystem health for plants, wildlife, and fish which depend on adequate water flow to their habitat for sustenance and reproduction ( OASIS DESIGN., 2009). For streams that have been dried from water diversion, recycled water may be used to build these habitats (GREYWATER RECYCLING SYSTEMS., 2010). Water flow can be augmented with recycled water to develop and sustain the aquatic and wildlife habitats (GREYWATER RECYCLING SYSTEMS., 2010). 1.2 GreyWater Greywater is water that has been used domestically (from baths, showers, clothes washers, and wash-hand basins) except for water from toilets (GREYWATER RECYCLING SYSTEMS., 2010). Greywater takes up 50 80% of household wastewater (OASIS DESIGN., 2009). Wastewater produced by toilets is called black water (OASIS DESIGN., 2009). However wastewater from kitchen sinks and dish-washers is also considered to be black water as well due to the presence of organic contents (OASIS DESIGN., 2009). The clearest purpose of recycling domestic grey water is that it replaces potable water use (OASIS DESIGN., 2009). 2 BUILD-UP OF TOXIC ORGANIC POLLUTANTS FROM RECYCLING In water treatment, a wide range of chemicals are added in excess due to poor operation or accidents (GRAY N. F., 2005). However, most of these chemicals are discharged with the finished water product due to the nature of the processes themselves. These include iron, aluminium, and organic compounds used as coagulates, such as polycrylamide (GRAY N. F., 2005). These chemicals result in odour and discolouration in the water as well as poor taste. Furthermore, the new Drinking Water Directive sets limit values for all these compounds. Chemicals such as chlorine and fluorine are added intentionally to protect the public from pathogens and teeth decay respectively (GRAY N. F., 2005). 3 THE NEGATIVE PUBLIC PERCEPTION OF DRINKING SEWAGE WATER The increasing concern of the public is reflected by a large rise in the sales of bottled water and home treatment systems (GRAY N.F., 2008). The view of reusing sewage water for the purpose of drinking water ignorantly puts people off now and again. However, the knowledge of water recycling plays a big role here so educating the consumer about water quality and the regulatory functions of water undertakers is mandatory (GRAY N.F., 2008). All water is reused and with the system of treatment in place, sewage water can be drinkable. The use of chlorine in water treatment is a major source of complaint with consumers (GRAY N.F., 2008). The prevailing reasons for boiling water, buying bottled water or the use of home treatment systems are over an improvement in taste and health concerns. There is a strong belief that bottled water is safer and purer to drink which unfortunately is not always true. The media also plays a role in the influence of attitudes towards water and the assessment risk (GRAY N.F., 2008). 4 REGULATIONS In protecting public health, conditions and regulations have been made to allow for the safe use of reclaimed water. Reclaimed water often provides a vital water supply and fertilizer source (METCALF EDDY., 2003). For most developing countries, the greatest concern with the use of wastewater for irrigation is that untreated or treated wastewater can possess quite a number of intestinal nematodes (e.g., Ascaris and Trichuris species and hookworms) and bacterial pathogens which are often difficult to control (METCALF EDDY., 2003). The health of the general public consuming farm produce that have been contaminated by the wastewater infected by these viral and bacterial agents can deteriorate over time. The world health organisation suggest that irrigation of farm produce prone to be eaten uncooked, sports fields, and public parks should be irrigated with wastewater dealt with stabilization ponds (METCALF EDDY., 2003). From country to country, regulations in reusing water and wastewat er vary. In England and Wales, Drinking Water Inspectorate control the standard of drinking water provided (GRAY N. F., 2005). However, the quality of the water is the privatised water companies responsibility (GRAY N. F., 2005).These responsibilities are regulated by the Office of Water Services and it also controls the price of water before hitting the market. The Environment Agency for England and Wales is responsible for controlling water pollution, regulating waste and manage integrated pollution control (IPC) licensing (GRAY N. F., 2005). It also has the duty to issue licenses for water control functions, promote the conservation and enhancements of freshwater to promote the recreational use of freshwater, to improve and develop fisheries and regulate them, to issue flood warnings and the provision of defences to reduce the risk of sea and river flooding, the issuing of land drainage consents and many other tasks (GRAY N. F., 2005). The Agency points out water protection zones , protects groundwater and sets the objectives for water quality (GRAY N. F., 2005). 5 PRECAUTIONS Dont store grey water Grey water should be used within 24 hours before the build up of bacteria develops. After this period, it is on its way to becoming septic, that is, black water (LETS GO GREEN., 2009). Avoid contamination and contact Identify grey water plumbing by labelling it. The use of gloves is vital when in contact with grey water filters or anything that has come in contact with it (LETS GO GREEN., 2009). Use only grey water that is fairly clean to start with. If otherwise, it should be diverted to a sewer or septic system (LETS GO GREEN., 2009). Microorganisms on consumable goods Untreated grey water possesses some microorganisms which affect lawns, or fruits and vegetables that are eaten raw (e.g., strawberries, lettuce, carrots) to an extent (LETS GO GREEN., 2009). Contamination of surface water Grey water should be disposed of properly either underground or in a mulch (a mulch is a covering made up of rotten vegetable matter which prevents evaporation and soil erosion). The addition of grey water to an already soaked soil should be avoided (LETS GO GREEN., 2009). 6 DESALINATION Desalination involves removing dissolved minerals from aquatic bodies to create drinking water (CITY OF RYDE, 2009). 15-50% of water is recovered with the other portion being brine (CITY OF RYDE, 2009). A few technologies have been produced for the execution of this process, including the best known and common membrane process is the reverse osmosis (CITY OF RYDE, 2009). http://www.esru.strath.ac.uk/EandE/Web_sites/98-9/offshore/ro.gif Figure 2: Diagram showing osmotic and reverse osmotic flow (Source: Courtesy of FWPBDP., 2010) Countries which do not have the advantage of continual fresh water supplies, competition for fresh water continually soars (TENE A. 2010). Israel is regarded pioneer in the area of desalination (TENE A. 2010). Following the water crisis in Israel, the state of water economy improved to an extent that even during harsh drought years, the water economy will continue to flourish since the water in the sea would not be running out anytime soon (TENE A. 2010). This sea water is pumped to as much volume is required and the final desalinated water is supplied as necessary. Another type of separation technique is the evaporation process (PEREIRA H.C. 1973). Developing economies such as California have warm climates of high evaporation rates (PEREIRA H.C. 1973). Its primary water resource is the sea where the evaporation process is practised. It is an effective alternative to water recycling in water poor regions (PEREIRA H.C. 1973). 7 FUTURE OF WATER RECYCLING Recycling is generally vital to our planets future. The rate at which the earths highly valued resources are been consumed is taking a rapid turn and many of these resources are not renewable (U.S. EPA., 2009). Recycling as a process takes considerably less energy to reuse an existing product than to source and make one from scratch (U.S. EPA., 2009). Water recycling has certainly established beyond doubt to be effective and resourceful in developing a new and reliable water supply. Nonpotable reuse is a widely accepted practise that will continue to expand (YOSHIKAWA N., 2006). Advances in wastewater treatment technology and health studies of indirect potable reuse will become common soon (YOSHIKAWA N., 2006). As water and environmental needs becomes urgent, water recycling would play a greater role in our long-term water supply (U.S. EPA., 2009). 8 WATER RECYCLING TECHNOLOGY The type of wastewater is essential for determining the kind of treatment plant and technologies to employ. Wastewater primarily arises from water usage by residential, commercial and industrial institutions including groundwater, surface water and storm water as shown in Figure 3. Figure 3: Sources of Wastewater (Source: Courtesy of ESCWA., 2003). Typical examples of water recycling systems in the domestic or industrial field are flotation and sedimentation, of which both are relevant to the chemical industry. 8.1 Flotation Flotation is a unit process used to remove solid or liquid from any form of liquid by releasing fine gas, usually air bubbles into it (ESCWA., 2003). The gas bubbles would stick to the liquid or would get trapped in the particle structure of the suspended solids, raising the floaty force of the particle and gas bubbles put together (ESCWA., 2003). Particles having a higher density than the liquid would be able rise. Flotation is used to remove suspended matter and to concentrate biological sludge in wastewater treatment (ESCWA., 2003). Flotation has an advantage over the sedimentation process in that; very minute and light particles are easily removed in a quicker time frame (ESCWA., 2003). Table 1: Data of Flotation Methods Process Brief Descriptions Dissolved Air Flotation Wastewater is subjected to the pressure of several atmospheres while air is introduced into it. The pressure then returns to atmospheric level, allowing the air to be released as small bubbles after a short time. These bubbles which stick to the suspended matter where it is removed by a skimming device. Air Flotation By the application of a revolving impellers or through diffusers, gas is passed into the liquid directly at atmospheric pressure Vacuum Flotation Wastewater is saturated with air. With the application of a partial vacuum, the dissolved air results in escaping as minute bubbles where they form a scam blanket. This blanket is removed by a skimming device. Source: Courtesy of ESCWA., 2003. Figure 4: A typical Flotation unit (ESCWA., 2003). 8.2 Sedimentation Sedimentation is a widely used unit operation in water and wastewater treatment (ESCWA., 2003). It involves the gravitational settling of suspended solids in a mixture usually water (ESCWA., 2003). These suspended solids are removed from suspensions by allowing it gravitate to the floor of a tank to form a sludge under near still conditions (ESCWA., 2003). This tank is referred to as a clarifier (ESCWA., 2003). It comprises of three main designs. They are; Horizontal flow clarifiers They can either be rectangular, square or circular in shape. The flow in rectangular clarifiers is rectilinear and parallel to the long axis of the basin. Furthermore, the water flows radially from the centre towards the outer edges in circular clarifiers. The clarifiers are usually made up of steel or reinforced concrete (ESCWA., 2003). Solid contact clarifiers They get solids into contact with a suspended layer of sludge near the bottom that acts as a blanket. The solids put in cumulate and remain trapped within the sludge blanket. As the solids remain below, the liquid is able to rise upwards (ESCWA., 2003). Inclined surface basins The flow here is laminar and there is little or no wind effect. Inclined trays are used to divide the depth into shallower sections, reducing the settling times in the process (ESCWA., 2003). Figure 5: Parts of a circular clarifier (Source: Courtesy of ESCWA., 2003). 9 HARD WATER Hard water is simply referred to as water that contains more minerals than ordinary water (FREE DRINKING WATER., 2009). Water that is said to be hard possesses minerals made up of calcium and magnesium compounds (FREE DRINKING WATER., 2009). This water usually comes from aquifers and other underground sources that collect dissolved minerals from rocks (FREE DRINKING WATER., 2009). Minerals of these sought reduces the ability of soap to lather and the ease of rinsing anything being washed made difficult. On the other hand, soft water is treated water that contains only sodium ion (FREE DRINKING WATER., 2009). Figure 6: Diagram showing hard and soft water processes (Source: Courtesy of LENNTECH., 2009). 9.1 PROBLEMS WITH HARD WATER Every cleaning task from laundering and dish washing to bathing and personal care is made unreasonably difficult taking up time and energy. The quantity of hardness minerals in water would determine the soap and detergent level required for cleaning. Additional detergent would have to be added to achieve the desired goal. Dishes and glasses washed using hard water may not be totally clean possessing certain spots when dry. The same goes with clothes which may feel harsh and scratchy when worn. Furthermore, skin was led with hard water may leave the skin feeling itchy and dry certainly not a remedy for skins with conditions such as eczema (HEIDEKAMP A. J., 2005). A number of detergents have ingredients that would mix with hard water minerals leaving a white deposit on clothing, making it look faded and worn out. Heated hard water affects water-using appliances (HEIDEKAMP A. J., 2005). It forms a scale of calcium and magnesium minerals which contributes to the inefficient and costly of these appliances (HEIDEKAMP A. J., 2005). Pipes become clogged with scale that impedes water flow and would in no time require pipe replacement. When hard water is heated, calcium ions react with bicarbonate ions to form an insoluble compound called calcium carbonate which is responsible for the scaling in pipes (HEIDEKAMP A. J., 2005). This is depicted in the equation below; 9.2 SOFTEN WATER TECHNIQUES 9.2.1 Lime-Soda Ash Technique It is the most common water softening method which involves the addition of slaked lime to hard water in water plants (FREE DRINKING WATER., 2009). Lime and soda ash are used because they are readily accessible and cost effective for softening water (FREE DRINKING WATER., 2009). Non-carbonate hardness is in turn reduced by the addition of soda ash to form insoluble precipitate which is also removed by filtration. Slaked lime is used to remove calcium bicarbonate from water (FREE DRINKING WATER., 2009). In this method, the slaked lime ions react with the calcium bicarbonate to form a slightly soluble calcium carbonate. This precipitate is usually removed by allowing it settle and then filtering (FREE DRINKING WATER., 2009). Additional lime is used in removing magnesium (FREE DRINKING WATER., 2009). This treatment becomes more costly as the hardness level has to be reduced to less than 5 grains. The use of the lime-soda ash treatment in homes was farfetched because of the equipment siz e and high cost involved in running one and even owning one (FREE DRINKING WATER., 2009). 9.2.2 Ion Exchange Columns Technique Ions could either be positively or negatively charged. A positive charge ion is called a cation while a negatively charged ion is an anion. The minerals, calcium and magnesium, that result in hardness are positively charged cations (NORDEN R. L., 2010). An ion exchange water softener has three main parts; A resin tank containing small beads of synthetic resin, A brine tank, The control valve (NORDEN R. L., 2010). When using ion exchange equipment, calcium and magnesium are exchanged for sodium from the brine tank (NORDEN R. L., 2010). As water passes through the resin tank, the sodium ions are exchanged with calcium and magnesium ions (NORDEN R. L., 2010). This is because the calcium and magnesium ions have a higher positive charge than the sodium ions. As the calcium and magnesium attach themselves to the resin beads is released simultaneously into the water. After the sodium in the resin, medium is exhausted, the medium can be regenerated by the sodium from the brine tank (NORDEN R. L., 2010). People with health problems such as heart or circulation problems, or are on low sodium diets may need to avoid using the ion exchange because of the high sodium content (NORDEN R. L., 2010). It is not even recommended for watering lawns or plants due to the sodium content present. However, potassium can be used in replacing sodium but it costs more. It is highly recommended that only hot water in a h ome be softened because the hot water line and heater benefits and the rate of soap consumptions are reduced (NORDEN R. L., 2010). Another importance in using the ion exchange equipment is that, it removes traces of iron as well to an extent because it is a positively charged ion (NORDEN R. L., 2010). 9.2.3 Chemical Conditioners/Suppressants Technique Chemical conditioning involves the addition of polyphosphates (SOUTHERN WATER., 2005). This reduces the availability of calcium in the formation of deposits. This would result in the water behaving as though softening although this would be false regarding the removal of calcium. A measure of this supposed softening is that such water would need less soap or detergent to lather. The polyphosphates can easily be set up by installing a relatively cheap dispenser in the pipework that could easily treat all the water going into the property (SOUTHERN WATER., 2005). When exhausted in the dispenser, the polyphosphates usually in solid glass-like balls are added at any appropriate time frame (SOUTHERN WATER., 2005). Alternatively, using polyphosphates helps to reduce traces of lead from any lead pipework but this should not be a guaranteed reason for using this technique (SOUTHERN WATER., 2005). HARD WATER CONTAINING CALCIUM AND MAGNESIUM ENTERING SOFTNER SOFTEN WATER CONTAINING SODIUM CONCLUSION Water is reusable. A high percentage of our water is recycled and the same water has been around for a long time. In this effect, water technologies have been cleverly developed in keeping this natural tradition alive. Hard water is water that contains calcium and magnesium ions, and can be reversed by softening it thereby leaving it usable in homes and industries. It has a costly effect on most equipment in our homes and a health risk in humans. In softening hard water, the rate at which all these negative effects take its course would be minimised.