Sludge enhancers can indeed replace lime and help reduce the mud cake moisture content to less than 60%. The following is a detailed analysis of sludge synergists in this application:

Principle of action of sludge synergist

Sludge enhancer is a chemical agent that can change the surface structure of the sludge, reduce the surface load of the sludge solid, reduce the specific surface area of the sludge surface, and destroy the bacterial structure. It mainly achieves dehydration effect in the following ways:

Change the charge properties and particle structure of the sludge, making it easier to be pressed and dehydrated.

Increase the porosity between sludge particles and improve the water removal efficiency.

Destroy the bacterial structure in the sludge, reduce the viscosity and fluidity of the sludge, and make it easier to handle.

Comparison of sludge enhancer and lime

Compared with lime, sludge synergists have the following advantages:

Better dewatering effect: Sludge enhancers can significantly reduce the moisture content of the sludge, reducing it to less than 60%, while lime may not achieve this effect in some cases.

No corrosion to equipment: lime added to the sludge will produce sludge increments, and is corrosive, will corrode pipes or filter cloth. The sludge synergist is non-corrosive to the equipment and can extend the service life of the equipment.

Non-stick filter cloth: After the use of sludge synergist, the sludge is not easy to adhere to the filter cloth, thereby reducing the filter cloth replacement frequency and cleaning costs.

Easy operation: The use process of sludge synergist is relatively simple, without complex operation process, reducing the labor intensity of staff.

Application effect of sludge synergist

In practical applications, sludge synergists can significantly improve the dewatering efficiency and quality of sludge. For example:

When used with the plate and frame filter press, the water content of the mud cake can be reduced by 35%-55%, and the effect is significant.

Mud pressing efficiency can be greatly increased to 100%-500%, greatly reducing the mud pressing cycle.

It is beneficial to the subsequent incineration of sludge, brick making and composting.

Conclusion

In summary, sludge enhancers can replace lime and help reduce the mud cake moisture content below 60%. It has the advantages of remarkable dewatering effect, non-corrosive to equipment, non-stick filter cloth and easy operation in practical application. Therefore, in the process of treating sludge dehydration, sludge synergist is a kind of chemical agent worthy of promotion and use.