Comparison of bioleaching and electrokinetic remediation processes for removal of heavy metals from wastewater treatment sludge.
Heavy metals prevent the growing amount of sewage sludge from being disposed as fertilizeron land. The electrokinetic remediation and bioleaching technology are the promising methods to remove heavy metals. In recent years, some innovation has been made to achieve better efficiency, including the innovation of processes and agents. This paper reviews the development of the electrokinetic remediation and bioleaching technology and analyses their advantages and limitation, pointing out the need of the future research for the heavy metals-contaminated sewage sludge.
The Ministry of Education Key Laboratory of Water Quality Safety and Protection of the Pearl River Delta, Guangzhou University, Guangzhou, Guangdong 510006, China.
Ying
Y
Xu
The Ministry of Education Key Laboratory of Water Quality Safety and Protection of the Pearl River Delta, Guangzhou University, Guangzhou, Guangdong 510006, China. Electronic address: gdzcs@gzhu.edu.cn.
Chaosheng
C
Zhang
The Ministry of Education Key Laboratory of Water Quality Safety and Protection of the Pearl River Delta, Guangzhou University, Guangzhou, Guangdong 510006, China. Electronic address: zmhua@gzhu.edu.cn.
Meihua
M
Zhao
The Ministry of Education Key Laboratory of Water Quality Safety and Protection of the Pearl River Delta, Guangzhou University, Guangzhou, Guangdong 510006, China.
Hongwei
H
Rong
The Ministry of Education Key Laboratory of Water Quality Safety and Protection of the Pearl River Delta, Guangzhou University, Guangzhou, Guangdong 510006, China.
Kefang
K
Zhang
The Ministry of Education Key Laboratory of Water Quality Safety and Protection of the Pearl River Delta, Guangzhou University, Guangzhou, Guangdong 510006, China; Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China.
Qiuli
Q
Chen
D001419:Bacteria / Q000378:metabolism; D055664:Electrochemical Techniques; D019216:Metals, Heavy / Q000737:chemistry / Q000378:metabolism; D012722:Sewage / Q000737:chemistry / Q000382:microbiology; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000378:metabolism
D019216:Metals, Heavy; D012722:Sewage; D014874:Water Pollutants, Chemical
Bioleaching; Electrokinetic remediation; Heavy metal; Sewage sludge