Municipal sludge contains not only a large number of microorganisms, mechanical properties and rich nitrogen, potassium and other nutrients, but also excessive heavy metals, pathogenic microorganisms and so on. At present, the moi.....

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.....

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.....

At present, there are many disadvantages in sludge deep dewatering. It is necessary to seek for sludge synergists, reduce the amount of iron salt and lime, increase sludge production and improve sludge reduction efficiency. Reduce.....

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.....

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.....