Domestic sewage is the waste water discharged from the daily life of residents. It mainly comes from residential buildings and public buildings, such as residential buildings, offices, schools, hospitals, shops, public places and industrial enterprise toilets. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrate, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasitic worm eggs and intestinal infectious viruses, etc.).
Domestic sewage is the waste water discharged from the daily life of residents. It mainly comes from residential buildings and public buildings, such as residential buildings, offices, schools, hospitals, shops, public places and industrial enterprise toilets. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrate, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasitic worm eggs and intestinal infectious viruses, etc.). Existing in the domestic sewage organic instability, easy to decay and produce foul smell. Bacteria and pathogens in the domestic sewage organic matter for nutrition and a large number of reproduction, can lead to the spread of infectious diseases.
Domestic sewage pollutants content is low, generally through the "grid +AA0" process can meet the discharge standard, aiming at the current many watershed upgrading transformation, need to meet the drainage level A standard, then add MBR treatment process after pond O can meet the drainage requirements.
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