Using a strong chemical oxidant, potassium ferrate (K2FeO4), in waste activated sludge treatment: A review

被引：82

作者：

Hu, Jiawei ^{[1
,2
]}

Li, Zhuo ^{[1
]}

Zhang, Ai ^{[3
]}

Mao, Shun ^{[1
]}

Jenkinson, Ian R. ^{[4
]}

Tao, Wenquan ^{[1
]}

机构：

[1] Tongji Univ, Coll Environm Sci & Engn, Int Joint Res Ctr Sustainable Urban Water Syst, State Key Lab Pollut Control & Resource Reuse, 1239 Siping Rd, Shanghai 200092, Peoples R China

[2] UN Environm Tongji Inst Environm Sustainable Dev, Siping Rd, Shanghai 200092, Peoples R China

[3] Donghua Univ, Coll Environm Sci & Engn, 2999 North Renmin Rd, Shanghai 201620, Peoples R China

[4] Agcy Consultat & Res Oceanog, F-19320 La Roche Canillac, France

来源：

ENVIRONMENTAL RESEARCH | 2020年 / 188卷

基金：

中国国家自然科学基金;

关键词：

Waste activated sludge; Sludge treatment; Potassium ferrate; Chemical oxidation method; CHAIN FATTY-ACIDS; EXTRACELLULAR POLYMERIC SUBSTANCES; PREPARED ALKALINE FERRATE; EXCESS SLUDGE; ANAEROBIC-DIGESTION; CALCIUM PEROXIDE; SEWAGE-SLUDGE; ULTRASOUND PRETREATMENT; ENHANCED DEWATERABILITY; METHANE PRODUCTION;

D O I：

10.1016/j.envres.2020.109764

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The ever-increasing production of waste activated sludge (WAS) has become a widespread problem to sewage treatment plants around the world. Among the multitudinous sludge treatment methods, chemical oxidation is considered as an excellent technology with both high efficiency and low investment cost. As an eco-friendly oxidant, potassium ferrate (PF) has attracted great attention in sludge treatment over the past decade. The applications of PF have demonstrated advantages in: (1) sludge dewatering; (2) minimization; (3) anaerobic fermentation; (4) removal of pollutants. This review summarizes recent work on the effects of PF on these four aspects of facilitating sludge disposal. Meanwhile, the underlying mechanisms for the diverse applications of PF on sludge treatment are analyzed. Furthermore, the shortages and knowledge gaps on current PF oxidizing methods are discussed, and directions for further research to simultaneously enhance treatment efficiency and reduce processing cost are suggested as well.

引用

页数：11

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