Application of Advanced Oxidation Technology in Sludge Conditioning and Dewatering: A Critical Review

Jiahua Xia, Juan Ji, Zhiqiang Hu, Ting Rao, Ankang Liu, Jingqian Ma and Yongjun Sun
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Jiahua Xia: Nanjing Jiangbei New Area Public Utilities Holding Group Co., Ltd., Nanjing 210044, China
Juan Ji: Nanjing Jiangbei New Area Public Utilities Holding Group Co., Ltd., Nanjing 210044, China
Zhiqiang Hu: Nanjing Jiangbei New Area Public Utilities Holding Group Co., Ltd., Nanjing 210044, China
Ting Rao: Nanjing Jiangbei New Area Public Utilities Holding Group Co., Ltd., Nanjing 210044, China
Ankang Liu: Nanjing Water Purification Environmental Research Institute Co., Ltd., Nanjing 211100, China
Jingqian Ma: College of Urban Construction, Nanjing Tech University, Nanjing 211800, China
Yongjun Sun: College of Urban Construction, Nanjing Tech University, Nanjing 211800, China

IJERPH, 2022, vol. 19, issue 15, 1-14

Abstract: Sludge dewatering is an important link in sludge treatment. In practical engineering, the dewatering effect of unconditioned sludge is very poor. The use of advanced oxidation technology can improve sludge dewatering performance, reduce sludge capacity, and remove micro-pollutants, which is beneficial for sludge post-treatment and disposal. Based on the current status of sludge conditioning and dehydration, the characteristics of the advanced oxidation method for sludge dehydration were systematically explained using various free radical reaction mechanisms and dehydration conditions. The effects of various advanced oxidation technologies on sludge conditioning and dewatering has been extensively discussed. Finally, the application prospects of the advanced oxidation technology in sludge conditioning and dewatering are presented.

Keywords: advanced oxidation technology; sludge reduction; sludge conditioning; sludge dewatering; oxidation (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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