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A practical definition of water pollution is: "Water pollution is the addition of substances or energy forms that directly or indirectly alter the nature of the water body in such a manner that negatively affects its legitimate uses." [1]: 6 Water is typically referred to as polluted when it is impaired by anthropogenic contaminants.
Beginning in the 20th century, designers of industrial and municipal sewage pollution controls typically utilized engineered systems (e.g. filters, clarifiers, biological reactors) to provide the central components of pollution control systems, and used the term "BMPs" to describe the supporting functions for these systems, such as operator training and equipment maintenance.
Water pollution is a major environmental issue in India. The largest source of water pollution in India is untreated sewage. [1] Other sources of pollution include agricultural runoff and unregulated small-scale industry. Most rivers, lakes and surface water in India are polluted due to industries, untreated sewage and solid wastes.
The association traces its historical roots back to the International Water Supply Association (IWSA), established in June 1947 in Harrogate, United Kingdom, changing its name to International Water Service Association (IWSA) in the mid-1990s, and the International Association on Water Quality (IAWQ), which was originally formed as the International Association for Water Pollution Research ...
Water efficiency is the practice of reducing water consumption by measuring the amount of water required for a particular purpose and is proportionate to the amount of essential water used. [1] [2] Water efficiency differs from water conservation in that it focuses on reducing waste, not restricting use. [3]
The water industry includes water engineering, operations, water and wastewater plant construction, equipment supply and specialist water treatment chemicals, among others. The water industry is at the service of other industries, e.g. of the food sector which produces beverages such as bottled water.
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WEF, which was formerly known as the Federation of Sewage Works Associations and later as the Water Pollution Control Federation, and originated in 1928. [2] WEF members include experts and specialists in the fields of: environmental engineering; industrial wastewater treatment; sewage treatment and sewage sludge treatment; stormwater management
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