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| Research progress on the application of modified skeletal materials for sludge deep dewatering |
| GE Zheng1, ZHANG Yi-xin1,2, LIU Ji-bao2, WEI Yuan-song2,3 |
1. National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology Beijing 100124, China;
2. Laboratory of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;
3. Institute of Energy, Jiangxi Academy of Sciences, Nanchang, Jiangxi 330096, China |
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Abstract Regarding the limitations of using raw skeleton materials, this literature reviewed the categories of skeletal materials, modification methods, and the mechanisms of enhancing sludge dewatering. In addition, the prospects and problems of their future application in sludge deep-dewatering were also discussed. The results showed that modified skeletal materials presented better physical and chemical properties which could play vital roles with multiple functions, including mechanical supporting, electrical neutralization, disruption of extracellular polymeric substances, physical adsorption and catalysis, etc., thus to promote deep dewatering. In terms of current state of research, to realize the reduction and utilization of sludge, development of efficient and economical modification methods for practical engineering applications is recommended.
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Received: 31 March 2023
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