The main technology used in sludge treatment is as follows:
1 sludge concentration, gravity concentration, concentration, concentration and dosing concentration of mechanical air flotation process.
2 sludge digestion, aerobic digestion, anaerobic digestion, anaerobic digestion and sub normal temperature digestion, medium temperature, high temperature digestion.
3 sludge dewatering has natural drying dehydration, mechanical dehydration, freezing and heating dehydration and other processes. The commonly used mechanical dewatering and belt filter press dewatering, dehydration, sludge filter press dewatering.
Sludge treatment process is mainly: agriculture, forestry use as fertilizer or improved soil, but also can be sent to the incinerator burning and drying, landfill and production of waste landfill and production of building materials.