الرئيسية » أرشيف الوسم : process

أرشيف الوسم : process

activated sludge process

A sewage and waste-water treatment. The sludge produced after primary treatment is pumped into aeration tanks, where it is continuously stirred and aerated, resulting in the formation of small aggregates of sus­pended colloidal organic matter called floe. Floe contains numerous slime-forming and nitrifying bac­teria, as well as protozoans, which decompose …

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