Study on improvement of sludge dewaterability with H2O2 cell lysis

[摘要] Excess sludge is the product of sewage treatment plants. With continuous perfection of municipal sewage treatment facilities in China, sludge output increases as a result of the growth of sewage treatment plants. Excess sludge has complicated compositions, including heavy metals, PPCPs, persistent organic pollutants. It owns high contents of organic matters and water. High-efficiency and low-cost dehydration of sludge is the key of sludge disposal. How to improve sludge dehydration efficiency is the research hotspot in the world. In this study, effects of hydrogen peroxide content and pH on sludge dehydration were discussed by chemical disintegration technique. The optimal hydrogen peroxide content and pH were discussed, aiming to search a high-efficiency sludge conditioner.

[发布机构] South China Institute of Environmental Sciences, MEP, Guangdong Guangzhou; 510655, China^1;South China Environmental Protection Supervision Centre, MEP, Guangdong Guangzhou; 510655, China^2;Guangdong Lvmei Environmental Technology Co. Ltd., China^3

[关键词] Cell lysis;Dehydration efficiency;Excess sludge;High-content;High-efficiency;Municipal sewage treatments;Persistent organic pollutant (POP);Sludge dewaterability