What is activated sludge?

Answer: Activated sludge is a general term for microbial populations and the organic and inorganic substances to which they are attached. In 1912, Clark and Gage in the United Kingdom discovered that activated sludge can be divided into aerobic activated sludge. And anaerobic granular activated sludge, activated sludge is mainly used to treat sewage.

What is activated sludge treatment method?

Answer: Activated sludge treatment method is a sewage treatment process, which refers to the use of organic pollutants in sewage as the matrix, in the presence of dissolved oxygen, through continuous cultivation of microbial groups, through coagulation, adsorption, oxidative decomposition, precipitation, etc. A process for removing organic matter.

Mature activated sludge should have the following three characteristics: First, it has good coagulation and sedimentation performance. Second, it contains a large number of bacterial micelles and fibrous protozoa. The third is to make the BOD removal rate of sewage reach about 90%.