According to the classification of the source of sewage, sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. Production of sewage, including industrial sewage, agricultural sewage and medical sewage, while the sewage is the daily life of the sewage, refers to various forms of inorganic and organic matter complex mixture
Different sewage treatment methods are not the same, of course, the principle of treatment is not the same.
General industrial wastewater: flocculation, sedimentation, filtration, disinfection, can be discharged, this is the basic process, and sometimes people also use electrolysis
Life sewage is generally more activated sludge method (which is divided into many categories): roughly, it is to rely on the microorganisms in the sludge to degrade the organic matter in the water to reduce the COD, BOD, TN, TP, etc.!
In fact, you can go to the encyclopedia to search for sewage treatment, which describes the very detailed, wild can be searched separately a method to understand sewage treatment. For example, CASS process (that is, the process used in our plant), oxidation ditch, SBR method, AB method, biofluidized bed method, ICEAS method, etc., in fact, the principle is almost the same, this is the treatment of domestic sewage process.