Sludge treatment has become an important task of urban development and must solve the problem, the comprehensive utilization of sludge has become a popular economic projects. Sludge dewatering is the primary problem of sludge utilization and technology. At present, sludge drying, including sludge dewatering and sludge drying, can be more efficient dehydration?

The sludge composition is composed of water suspended solids solidified in different ways, loose structure, irregular shape, high specific surface area and porosity, high water content, poor dehydration, especially for biochemical sludge, which is often hydrophilic Strong colloid, high organic content, extremely difficult to dehydrate, direct use of sludge dewatering machine dehydration effect is not ideal.

So in order to sludge dewatering machine efficient dehydration, we must first solve the problem of sludge hydrophilic. Applicable to the pretreatment of sludge can better improve the dehydration, sludge dewatering agent mainly refers to cationic polyacrylamide sludge dewatering agent, ion degree between 30% -60%, mainly for urban and industrial wastewater. After the sludge after the treatment of sludge into the sludge dewatering machine for mechanical dehydration, will significantly reduce the sludge dewatering costs, improve the quality of dehydration.