http://www.all-about-wastewater-treatment.com/wastewater/why-treat-wastewater Tue, 06 Jan 2009 05:05:21 +0000 http://wordpress.org/?v=2.3.3 http://www.all-about-wastewater-treatment.com/wastewater/why-treat-wastewater#comment-7 Ashley Wilson Wed, 23 Apr 2008 10:39:04 +0000 http://www.all-about-wastewater-treatment.com/wastewater/why-treat-wastewater#comment-7 Nice post,Treatment facilities simply compress the organic decomposition processes which take place in nature. This is performed by a combination of physical, biological, and chemical treatment stages. Nature (receiving waters) can only accept small amounts of sewage before becoming polluted, that is, natural bacteria feed on the sewage organics and create an abnormal amount of dissolved oxygen uptake. Dissolved oxygen which exists in minute amounts (10 parts per million @ 20ºC), is required by all marine life for survival. Nice post,Treatment facilities simply compress the organic decomposition processes which take place in nature. This is performed by a combination of physical, biological, and chemical treatment stages. Nature (receiving waters) can only accept small amounts of sewage before becoming polluted, that is, natural bacteria feed on the sewage organics and create an abnormal amount of dissolved oxygen uptake. Dissolved oxygen which exists in minute amounts (10 parts per million @ 20ºC), is required by all marine life for survival.

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