With the increasingly strict environmental standards, sludge treatment has become a key challenge in the wastewater treatment industry. Plate and frame filter presses, as the mainstream equipment for deep sludge dewatering, generally encounter industry pain points such as high sludge cake moisture content, long filtration cycle, severe filter cloth sludge adhesion, and high disposal costs. The innovative application of sludge enhancers has brought revolutionary efficiency improvements to the plate and frame filter press process, becoming the core technical solution for sludge reduction treatment.

The sludge enhancer is designed based on the characteristics of the plate and frame filter press process. It achieves fundamental improvement in the sludge dewatering performance through a triple mechanism of "efficient disintegration - powerful flocculation - channel optimization". Firstly, the active ingredients effectively break the sludge colloid structure, break the microbial cell walls, and release the difficult-to-remove intracellular bound water, solving the technical bottleneck where traditional agents can only remove free water. Secondly, through the synergistic effect of electro-neutralization and adsorption bridging, fine particles are aggregated into large and dense flocs, significantly reducing the sludge specific resistance. More importantly, the optimized filter cake pore structure forms smooth drainage channels during the filter press process, avoiding filter layer blockage, and allowing the pressure to effectively transfer to the deep layer of the filter cake.

In the practical application of plate and frame filter press, the sludge enhancer demonstrates five core advantages. Firstly, the cake consistency of the sludge is significantly improved. The traditional process usually has a moisture content of 75% - 85%, while after using the sludge enhancer, the moisture content is steadily reduced to below 60%, and in some projects, it reaches 45% - 55%. The volume of the sludge is directly halved. Secondly, the filtration efficiency is significantly accelerated. The feeding time is shortened from 3 - 4 hours to within 1 hour, and the single cycle is shortened by more than 50%, and the processing capacity of the equipment doubles. Thirdly, it completely solves the problem of sticky filter cloth. It changes the surface charge characteristics of the sludge particles, reduces the adhesion force, and the filter cloth is easy to peel off and clean, with a lifespan extension of 30%. Fourthly, the thickness and output of the sludge cake are both increased. The thickness of the single press filter sludge cake increases from 2 - 3 cm to 4 - 5 cm, and the single batch processing capacity increases by more than 60%. Fifthly, the overall cost is significantly reduced. The disposal volume of sludge decreases, transportation costs are reduced, energy consumption is saved, resulting in significant overall benefits. In most projects, a cost saving of more than 30% is achieved.

Compared with the traditional "iron salt + lime + PAM" system, the sludge enhancer has a significant technological superiority. The traditional process requires a large dosage of chemicals, leads to a significant increase in sludge volume, and results in a high inorganic content in the filter cake, which is not conducive to subsequent resource utilization and is prone to cause equipment corrosion. The new sludge enhancer requires only 1% - 3% of the dry weight of the sludge for addition, does not increase the absolute dry weight of the sludge, the filtrate is clear, and the organic matter in the treated filter cake is completely retained, making it more suitable for resource utilization disposal such as incineration, brick production, and composting.

The sludge enhancer developed by Works Chemical can be applied to various types of sludge, including those from domestic, dyeing, chemical, and paper industries. After being adopted by a large municipal wastewater treatment plant, it has saved over 3 million yuan in sludge disposal costs annually, demonstrating significant economic and environmental benefits. The deep integration of the sludge enhancer with the plate and frame filtration process is reshaping the sludge dewatering industry landscape, providing solid technical support for the reduction, harmless treatment, and resource utilization of sludge.