he world's paper mills produce a large amount of papermaking wastewater, and the pollution load is heavy. Since the disposal cost of sludge accounts for about 50% of the sewage treatment cost, the sludge has not been properly disp.....

In the process of industrial wastewater and domestic sewage treatment, a large amount of sludge will be produced. The moisture content in the sludge reaches 95% to 99%, as long as the water is removed, the volume of the sludge wil.....

It is well known that pretreatment of sludge by physical, chemical or biological methods can change the physical properties and chemical composition of the sludge floc, destroy the colloidal structure of the sludge, and reduce the.....

With the improvement of the final disposal requirements of sludge, in order to improve the dehydration efficiency of the plate and frame machine, it is often necessary to use chemicals to tempering and treating the sludge, and the.....

Sludge dehydrating agent is a chemical agent used for sludge treatment. Sludge dehydrating agent can accelerate the separation of water in the sludge, thereby reducing the volume and weight of the sludge and facilitating subsequen.....

As we all know, in order to meet the emission standards of paper mills, the moisture content must reach 55%-65%. At present, the methods of reducing water content mainly include chemical method, physical method and biochemical met.....