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Application of Advanced Oxidation Technology in Sludge Conditioning and Dewatering: A Critical Review
Summary
This review examines advanced oxidation technologies for sludge conditioning and dewatering, systematically analyzing free radical reaction mechanisms, operational parameters, and the effects of processes such as Fenton, ozone, and UV oxidation on improving dewatering performance, reducing sludge volume, and eliminating micropollutants prior to disposal.
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.
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