[Effect of Different Cationic Polyacrylamide Organic Dehydrating Agents on Sludge Dewatering Performance].
Qiyun Feng, Baoyu Gao, Qinyan Yue, Weijie Shi, Chun-Hui Feng, Ji-Zhu Zhou, Guorui Wang · PubMed · 2022
, 17.42%, 85.07 mPa·s, and 67.10 mV, respectively. The dewatering performance of sludge was improved by improving the specific resistance of filtration (SRF), floc properties, viscosity, Zeta potential, the bound water content, and the distribution of extracellular polymeric substances (EPS) after dosing organic dewatering agents. The results showed that the viscosity, charge density, cationic degree, and Zeta potential of the dewatering agents had a great influence on the sludge dewatering performance. The SRF of sludge was negatively correlated with the viscosity of the organic dewatering agent, and the correlation coefficient was as high as 0.92025, indicating that the sludge dewatering performance was improved mainly through the adsorption bridging effect of the organic dewatering agent in sludge dewatering.