The method of urban sludge treatment generally adopts the following steps: First, the sludge is dehydrated, and the untreated urban sludge has high water content and large volume, which cannot be directly transported or disposed of. So, how should urban sludge be dehydrated? At present, the dewatering treatment of urban sludge is treated by the sludge dewatering agent combined with the plate and frame mud press, which can reduce the sludge moisture content from more than 90% to 40%-60%, and fully realize the sludge reduction. Not only the moisture content is low, it can be directly loaded and transported by truck, the content of available substances after sludge dehydration and concentration is relatively increased, and it is also conducive to the subsequent disposal and utilization of sludge.

The second is the stabilization of the sludge, the dehydrated sludge still contains a large number of organic matter and pathogens, so it is necessary to further degrade the microorganisms in the sludge and kill the pathogens in the sludge. Finally, it is the effective use of urban sludge, which can be used for construction purposes, agricultural use, land use, etc. Urban pollution.