Waste Management
Science One World Essay: Waste Management The World Book Dictionary defines waste as “useless or worthless material; stuff to be thrown away” (Zero Waste America Is a…). It is also categorized into different types such as municipal waste, industrial waste, hazardous waste, construction and demotion waste, sewage and so on. Sewage is classified as one of the most serious type of waste because it always happen everyday. Wastewater is defined as “a combina- tion of one or more of: domestic effluent consisting of black- water (excreta, urine and faecal sludge) and greywater (kitchen and bathing wastewater); water from commercial establish- ments and institutions, including hospitals; industrial effluent, stormwater and other urban run-off; agricultural, horticultural and aquaculture effluent, either dissolved or as suspended matter” (Corcoran, Emily,…). There are a lot of factors that create sewage such as human wastes, domestic waste, industrial waste, and so on. When a person is doing their daily basis such as washing dishes, all of the wastes go straight into the sewage. Research has shown that a single home in America that does not have any type of conservation uses 74 gallons per day (Heaton, Ph.D., Linda).
Activity Gallons Used per day Percent of Total
Toilets 19.3 26
Clothes Washer 16.8 22.7
Showers 13.2 17.8
Faucets 11.4 15.4
Leaks 9.4 12.7
Other domestic use 1.6 2.1
Baths 1.3 1.8
Dishwasher 1.0 1.4
Many countries have developed water treatment plants in order to clean the sewage water that will be disposed into bodies of water. There are a lot of ways to treat wastewater such as advanced oxidation process, sand filter, septic tank, anaerobic filter, reverse osmosis, and so on. There is only one percent of fresh water available for human use (Corcoran, Emily…). The rest are either salt water, frozen in Antarctica and Greenland Icecaps, or lies too deep underground to be accessed. Statistics have also shown that “every 20 seconds, a child dies
Activity Gallons Used per day Percent of Total
Toilets 19.3 26
Clothes Washer 16.8 22.7
Showers 13.2 17.8
Faucets 11.4 15.4
Leaks 9.4 12.7
Other domestic use 1.6 2.1
Baths 1.3 1.8
Dishwasher 1.0 1.4
Many countries have developed water treatment plants in order to clean the sewage water that will be disposed into bodies of water. There are a lot of ways to treat wastewater such as advanced oxidation process, sand filter, septic tank, anaerobic filter, reverse osmosis, and so on. There is only one percent of fresh water available for human use (Corcoran, Emily…). The rest are either salt water, frozen in Antarctica and Greenland Icecaps, or lies too deep underground to be accessed. Statistics have also shown that “every 20 seconds, a child dies
Bibliography: “Ashkelon, Israel." Ashkelon. Web. 06 Mar. 2012. . "Industrial Sector Increases Use of Reverse Osmosis." Reverse Osmosis Guide. Web. 06 Mar. 2012. . "International Decade for Action Water for Life 2005-2015: Water Scarcity." UN News Center. UN. Web. 06 Mar. 2012. . Joshi, S.V., P.K. Ghosh, V.J. Shah, C.V. Devmurari, J.J. Trivedi, and Prakash Rao. CSMCRI Experience with Reverse Osmosis Membranes and Desalination: Case Studies. Bhavnagar: CSMCRI, 2 Feb. 2004. PDF. "Optimizing the Efficiency of Reverse Osmosis Seawater Desalination." Osmosis Reverse Osmosis and Osmotic Pressure What They Are. Web. 06 Mar. 2012. . "Sewage." Merriam-Webster. Merriam-Webster. Web. 05 Mar. 2012. . Heaton, Ph.D., Linda. Water Usage. 05 Mar. 2012. . "UN-Water Statistics - Water Resources." Welcome to UN-Water. Web. 06 Mar. 2012. . "What Is Reverse Osmosis and How Does It Work?" What Is Reverse Osmosis and How Does It Work? Web. 06 Mar. 2012. . "What Is Waste?" Zero Waste America Is a Non-profit Environmental Organization That Promotes Zero Waste and Provides Information and Analysis on Related Matters. Web. 06 Mar. 2012. .