Patent ID: 8739709

Claim:
A combined treatment process of domestic garbage and sewage, characterized in that the process comprises the following steps: (1) sorting iron out of the domestic garbage; (2) crushing the domestic garbage in which the iron has been removed; (3) feeding the crushed domestic garbage into a sewage treatment tank, adding water and blowing air into the sewage treatment tank, where the domestic garbage is divided into three layers: floating substances, suspended substances and settled substances; (4) salvaging, dehydrating and drying the floating substances and then combusting them as fuel; (5) collecting, filtering and drying the settled substances, wherein the settled substances having a calorific value of more than 4180 kJ/kg are burnt as fuel, the burnt substances and the settled substances having a calorific value of less than 4180 kJ/kg are used to replace clay material in a cement plant or used for making bricks; (6) adding a flocculant into the sewage in which the floating substances and the settled substances have been removed so as to make the suspended substances settle, the suspended substances which have been settled are treated according to step (5); (7) treating the sewage.