What is municipal sludge like?

Municipal sludge is the sediment produced in the water treatment process of municipal sewage treatment plants. It not only contains a large number of microorganisms, organic matter and rich nutrients such as nitrogen and potassium, but also the content of heavy metals and pathogenic microorganisms exceeds the standard. At present, the moisture content of urban sludge is mostly about 80%. Sewage treatment plant municipal sludge is the main source of sludge in China, the sludge content is high, and it is more difficult to dehydrate than industrial sludge.

Second, the treatment of municipal sludge

Common municipal sludge treatment methods are: dehydration, concentration, drying, digestion, incineration, solidification and comprehensive utilization. Dehydration and concentration are two widely used methods at present.

Third, the role of sludge conditioner in sludge dehydration

Many companies will choose to use machines to dehydrate the sludge, but the moisture content of the sludge is still high. Therefore, you can choose to use the chemical dispensing method with the dewatering machine to reduce the moisture content. Commonly used agents are polyacrylamide, sludge conditioner and so on. Sludge conditioner is a new type of sludge dehydrating agent, which can change the surface structure of sludge, reduce the solid surface load of sludge, reduce the specific surface area of sludge and destroy the bacterial structure of the sludge surface. The main components are inorganic compounds, sludge surface structure modifier, degreaser, wall breaking agent, sludge surface treatment agent, sludge stripping agent and so on.