期刊
CHEMICAL ENGINEERING JOURNAL
卷 335, 期 -, 页码 865-875出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.10.162
关键词
Sulfate radical; Peroxydisulfate; Peroxymonosulfate; Dewaterability; Disintegration; Advanced oxidation
资金
- National Natural Science Foundation of China [21607088]
- Doctoral Fund Project of Panzhihua University [0210600022]
- Science and Technology Planning Project of Panzhihua [2015TX-8]
- Opening Project of Key Laboratory of Dry-hot Valley Characteristic Bio-Resources Development at university of Sichuan Province [GR-2017-E-04]
An ever-increasing amount of wasted activated sludge is the greatest challenge to wastewater treatment plants on both the economic and environmental sides. Within the last five years, great attention has been attracted to apply sulfate radical (SO4 center dot-)-based oxidation for sludge treatment. Based on the published studies, an extensive review about SO4 center dot- -based oxidation applied for sludge disintegration, dewaterability enhancement, metal solubilization, and micropollutant degradation in the sludge is presented. Focus is placed on sludge dewaterability and disintegration by the activation of peroxymonosulfate (PMS) and peroxydisulfate (PDS) with different activators. Knowledge gaps are pointed out and discussed, more work should be carried out to further supplement and optimize SO4 center dot- based oxidation processes for highly-efficient and cost-effective treatment in the practical sludge systems though their potentials on sludge treatment have been demonstrated.
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