Application scenarios
Excess Sludge Treatment in Municipal Plants
Primary Sedimentation Sludge Dewatering
Industrial Organic Sludge Dewatering
Efficiency Improvement in Industrial Wastewater Treatment
Dewatering of municipal sludge (including excess sludge and primary sedimentation sludge generated from domestic sewage treatment).
Dewatering of industrial sludge (such as from chemical, dyeing, food, pharmaceutical, and other industries), particularly suitable for difficult-to-dewater organic sludge.
Dewatering of industrial sludge (such as from chemical, dyeing, food, pharmaceutical, and other industries), particularly suitable for difficult-to-dewater organic sludge.
Solution
The high-molecular-weight chains of polyacrylamide (PAM) adsorb tiny particles in sludge and form tight, tough flocs through the “bridging” effect. This enhances the shear resistance of sludge particles, preventing floc breakage during dewatering. It reduces the binding force between sludge and water, making it easier for water (particularly free water and interstitial water) to separate from the sludge, thereby improving dewatering efficiency. After conditioning with PAM, the solid content of the dewatered sludge cake is significantly increased (typically from 3%-8% after concentration to over 20%-40%), reducing the volume of the sludge cake and lowering subsequent disposal costs.
In sludge dewatering, polyacrylamide serves as a key conditioning agent. By improving the dewatering properties of sludge, it helps sludge more efficiently separate water in dewatering equipment (such as plate-and-frame filter presses, centrifugal dewatering machines, and belt filter presses).
