Newly built domestic sewage treatment equipment in rural areas

Newly built domestic sewage treatment equipment in rural areas $r $n $r $n. 1. Source of domestic sewage $r $n $r $n. Sewage generated during human life is one of the main sources of water pollution. Mainly feces and washing wastewater. The daily amount of domestic sewage discharged by each person in the city is 100-200L, which is closely related to their living standards. Domestic sewage contains a large amount of substances such as cellulose, starch, carbohydrates, and lipoproteins; It also often contains pathogenic bacteria, viruses, and parasitic eggs; Inorganic salts such as chlorides, salts, phosphates, bicarbonates, and sodium, potassium, calcium, magnesium, etc. The overall characteristic is high nitrogen, sulfur, and phosphorus content, and under the action of anaerobic bacteria, it is prone to produce odorous substances.