Sludge enhancers play an important role in improving sludge dewatering efficiency. The following is a detailed analysis of how sludge synergists improve sludge dewatering efficiency:

First, the mechanism of action of sludge synergists

Sludge enhancer is a chemical agent whose main function is to change the physical and chemical properties of sludge, thereby improving its dewatering performance. Specifically, sludge enhancers can:

Change the surface structure of the sludge: reduce the surface load and specific surface area of the sludge solid, destroy the bacterial structure, and make the sludge particles easier to aggregate and settle.

Regulate the interaction between sludge particles: by affecting the Zeta potential of sludge particles, reduce the electrostatic repulsion between particles, and promote the flocculation and settlement of sludge.

Optimization of sludge particle size distribution: increase the proportion of rigid solidified solids and brittle solidified solids in the sludge, reduce the proportion of supercolloid solids and true colloid solids, so as to build more favorable drainage channels.

Reduce the EPS content in sludge: EPS (extracellular polymer) is an important factor affecting the dewatering performance of sludge. By reducing the EPS content, the hydrophilicity and dewatering performance of sludge can be improved.

Second, the advantages of sludge synergists

Compared with traditional sludge dehydrants (such as polyacrylamide, polyaluminum chloride, ferric chloride, lime, etc.), sludge enhancers have the following advantages:

 

The dehydration effect is better: the moisture content in the sludge can be reduced more significantly to achieve deep dehydration.

Lower cost of use: Although the specific cost varies depending on the type of agent and the nature of the sludge, the sludge synergist usually has a lower dosage and treatment cost.

Equipment friendly: Traditional sludge dewatering agents may cause problems such as corrosion or clogging of filter cloth on sludge dewatering equipment, while sludge enhancers can effectively avoid these problems.

Improve production efficiency: Combined with efficient dehydration equipment (such as plate and frame filter press), you can shorten the time of the entire dehydration process and improve production efficiency.

Iii. Conclusion

In summary, sludge synergists can significantly improve the dewatering efficiency of sludge by changing the physical and chemical properties of sludge, optimizing the interaction between sludge particles and particle size distribution, and reducing the EPS content in sludge. In the field of sewage treatment and sludge disposal, the application of sludge synergists has broad prospects and important practical significance.