期刊论文

Study on the remediation of cadmium contaminated soil by cadmium-tolerant strains combined with electrokinetic remediation technology

Wang, P.

中文

环境科学学报

0253-2468

2020

40

6

2212-2219

10.13671/j.hjkxxb.2020.0005

湖南省重点研发项目（No.2016SK2030）； 国家自然科学基金（No.51908561）； 大学生创新创业训练项目（No.201910538067X,S201910538035）； 湖南省教育厅重点项目（No.18A163）；

本校为第一且通讯机构

为提高传统电动技术对重金属污染土壤的修复效果以及经济效益,本研究采用耐镉细菌联合电动修复技术修复镉污染土壤.通过在含镉土壤中接种3种耐镉细菌Escherichia coli strain、Bacillus sp.和Bacillus cereus strain,以电压梯度1 V·cm~(-1)通电10 d,比较不同耐镉细菌对土壤Cd去除和形态转化,以及电能消耗的影响.结果表明,接种Escherichia coli strain、Bacillus sp.、Bacillus cereus strain的试验组比传统电动修复的Cd去除率分别提高7.63%、17.21%、19.53%;单位修复能耗分别降低64.78、109.52、116.54 kW·min·mg~(-1).由于Bacillus cereus strain对Cd~(2+)的吸附量高于Escherichia coli str...

To improve the treatment and cost efficiency of traditional electrokinetic (EK), this study used Cd-tolerant strains combined with EK on cadmium (Cd) contaminated soil remediation. Cd removal and energy consumption were evaluated by inoculating different Cd-tolerant strains, Escherichia coli, Bacillus sp. and Bacillus cereus in soil with 10 days under a 1V•cm-1. The results showed that the Cd removal efficiency with Escherichia coli, Bacillus sp. and Bacillus cereus was 7.63%, 17.21% and 19.53% respectively, which were higher than traditional ...