For a long time, the domestic plate-and-frame sludge dewatering process has generally adopted the traditional conditioning technology of combining iron salts, aluminum salts with lime. This classic solution has low barriers and wide application, but in the current era of environmental protection, quality improvement, cost reduction and efficiency enhancement, its drawbacks have become increasingly prominent and it is gradually unable to meet the requirements of modern sludge disposal.

The traditional inorganic chemical dehydration methods have extremely limited effectiveness. They can only remove the free water on the surface of the sludge, but are ineffective for the internal bound water and intracellular water. This is the main reason for the high water content and poor quality of the sludge cake. Moreover, the dosage of the chemical agents is extremely large, which leads to a significant increase in sludge volume and aggravates the costs of solid waste transportation, landfilling, and incineration. At the same time, iron salts and aluminum salts have strong corrosiveness. Long-term use will damage the filter press equipment, filter cloths, and pipelines, increasing the cost of equipment maintenance and replacement. The lime dust will also pollute the working environment of the workshop.

To break through the bottlenecks of traditional processes, a new type of sludge dewatering agent (sludge enhancer) has emerged. As a multi-functional polymer composite agent, it departs from the traditional multi-agent compounding mode and can complete the entire process of sludge conditioning, flocculation, and deep dewatering with a single agent, perfectly replacing all traditional dewatering agents such as iron salts, aluminum salts, and lime.

The sludge enhancer achieves this through multiple technical principles such as precise charge neutralization, colloid disintegration modification, and high-molecular bridging flocculation. It deeply removes the bound water within the sludge, forming a uniform, compact and hard sludge cake, completely eliminating the problem of being dry on the surface while still being wet inside. Compared to traditional processes, its dosage is significantly reduced, there is no increase in sludge volume, and it does not corrode equipment or cause dust pollution. It is suitable for sludge from various industries such as municipal sewage, dyeing, chemical production, and papermaking.

The dewatering effect is stable, and the sludge cake moisture content can be controlled within the standard range for a long time. It is an ideal solution for upgrading the plate and frame sludge dewatering process.