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(1) Expanded sludge The performance of activated sludge settling and flocculation can be understood by measuring the sludge volume index (SVI). Generally, the sludge volume

Biological contact oxidation method The biological contact oxidation method is used to treat wastewater, that is, the biological contact oxidation process is used to fill

Activated sludge is a floc with strong adsorption and decomposition capabilities. The core of activated sludge lies in the word "living". As we all know,

Flocculant: Polyaluminum chloride (used for flocculation, can reduce SS, COD, total phosphorus) Polyacrylamide (anions are generally used for flocculation and accelerated precipitation, and cations are

Urban domestic sewage treatment chemicals Flocculant: Polyaluminum chloride (used for flocculation, can reduce SS, COD, total phosphorus) Polyacrylamide (anions are generally used for flocculation and

Characteristics of urban domestic sewage 1. Water quality changes greatly: Due to the different scale and nature of urban industries and the different proportions of