Small household sewage treatment facility technology - product introduction $r $n $r $n Domestic sewage is the sewage generated in human daily life, including washing, excretion, flushing, etc., collectively referred to as domestic sewage. Domestic sewage (DOMESTIC * AGE) refers to the wastewater generated by urban authorities, schools, and residential communities in their daily lives, including toilet manure, laundry and shower water, kitchen drainage, as well as drainage from commercial, hospital, and recreational areas. Wastewater generated during human life is one of the main sources of water pollution. Mainly feces and washing wastewater. Domestic sewage contains a large amount of substances such as cellulose, starch, and carbohydrates