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Wastewater Treatment Plant

Treatment of waste water is clarified by physical,Chemical and biological processes which removes

Physical, chemical and biological matter thatContaminates the wastewater .

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Primary treatment : Consists oftemporarily holding the sewage in aquiescent basin where heavy solids cansettle to the bottom while oil, grease andlighter solids float to the surface. Thesettled and floating materials are removed

and the remaining liquid may bedischarged or subjected to secondarytreatment.

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Secondary treatment: Removesdissolved and suspended biologicalmatter. Secondary treatment is typicallyperformed by indigenous , water-bornemicro-organisms in a managed habitat.Secondary treatment may require a

separation process to remove the micro-organisms from the treated water prior todischarge or tertiary treatment.

http://en.wikipedia.org/wiki/Indigenous_(ecology)http://en.wikipedia.org/wiki/Indigenous_(ecology)

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Tertiary treatment : Is sometimes definedas anything more than primary andsecondary treatment in order to allowrejection into a highly sensitive or fragileecosystem (estuaries, low-flow rivers,coral reefs,...). Treated water is sometimes

disinfected chemically or physically.

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For example : By lagoonsand microfiltration ) prior to discharge intoa stream , river , bay , lagoon or wetland , orit can be used for the irrigation of a golfcourse, green way or park. If it issufficiently clean, it can also be used

for groundwater recharge or agriculturalpurposes.

http://en.wikipedia.org/wiki/Microfiltrationhttp://en.wikipedia.org/wiki/Streamhttp://en.wikipedia.org/wiki/Riverhttp://en.wikipedia.org/wiki/Bayhttp://en.wikipedia.org/wiki/Lagoonhttp://en.wikipedia.org/wiki/Wetlandhttp://en.wikipedia.org/wiki/Irrigationhttp://en.wikipedia.org/wiki/Groundwater_rechargehttp://en.wikipedia.org/wiki/Groundwater_rechargehttp://en.wikipedia.org/wiki/Irrigationhttp://en.wikipedia.org/wiki/Wetlandhttp://en.wikipedia.org/wiki/Lagoonhttp://en.wikipedia.org/wiki/Bayhttp://en.wikipedia.org/wiki/Riverhttp://en.wikipedia.org/wiki/Streamhttp://en.wikipedia.org/wiki/Microfiltration

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