Transcription of How Wastewater Treatment WorksThe Basics
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How Wastewater Treatment WorksThe Basics
United StatesEPA 833-F-98-002 Environmental Protection May 1998 AgencyOffice of Water (4204) BasicsOne of the most common forms of pollutioncontrol in the United States is wastewatertreatment. The country has a vast system ofcollection sewers, pumping stations, and treatmentplants. Sewers collect the Wastewater from homes,businesses, and many industries, and deliver it toplants for Treatment . Most Treatment plants werebuilt to clean Wastewater for discharge into streamsor other receiving waters, or for ago, when sewage was dumped intowaterways, a natural process of purification , the sheer volume of clean water in the streamdiluted wastes. Bacteria and other small organismsin the water consumed the sewage and otherorganic matter, turning it into new bacterial cells;carbon dioxide and other products.
pollutants, such as heavy metals, chemical com-pounds, and toxic substances, are more difficult to remove from water. Rising demands on the water supply only aggravate the problem. The increasing need to reuse water calls for better wastewater treatment. These challenges are being met through better methods of removing pollutants at treatment
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