Wastewater Treatment for Better Environmentby Rawya Monir Kansoh, Alexandria Univ,
Abstract: Wastewaters from households, industries, and combined sewers are collected and transport to the treatment plant with the effluent commonly disposed of by dilution in rivers, lakes or estuaries. This is normally the only feasible method of disposal and for several communities on rivers, the only system that ensures adequate water resources for downstream users during drought flows. Other means include irrigation, infiltration, evaporation from lagoons and submarine outfalls extending into the ocean. The location of a typical municipal wastewater treatment plant is illustrated. The lesson is that populations increases, but water and land resources do not. Consequently, the use and control of these resources must be nearly perfect to maintain our way of life. Exercising this control will require the skillful blending of state of the art technology with a host political, social, economic, and organizational elements. It is the technology of water supply and pollution control.
Subject Headings: Water shortage | Water resources | Municipal wastewater | Wastewater treatment plants | Industrial wastes | Rivers and streams
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