维普中文期刊产品整合服务

Coupling of bioelectrochemical toluene oxidation and trichloroethene reductive dechlorination for single-stage treatment of groundwater containing multiple contaminants

查看全文 作　　者：Carolina Cruz [1]Viggi;Matteo [1]Tucci;Marco [1]Resitano;Simona [1]Crognale;Maria Letizia Di [1]Franca;Simona [1]Rossetti;Federico [1]Aulenta 高影响力作者 机构地区：[1]Water Research Institute(IRSA),National Research Council(CNR),Via Salaria Km 29,300,00015,Monterotondo,RM,Italy高影响力机构 出　　处：《Environmental Science and Ecotechnology》索引2022年第3期,共8页高影响力期刊 基　　金：This study was supported by the European Union’s Horizon 2020 project ELECTRA(www.electra.site)under grant agreement No.826244. 摘　　要：Bioremediation of groundwater contaminated by a mixture of aromatic hydrocarbons and chlorinated solvents is typically challenged because these contaminants are degraded via distinctive oxidative and reductive pathways,thus requiring different amendments and redox conditions.Here,we provided the proof-of-concept of a single-stage treatment of synthetic groundwater containing toluene and trichloroethene(TCE)in a tubular bioelectrochemical reactor,known as a“bioelectric well”.Toluene was degraded by a microbial bioanode(up to 150 mmol L^(-1) d^(-1))with a polarized graphite anode(t0.2 V vs.SHE)serving as the terminal electron acceptor.The electric current deriving from microbially-driven toluene oxidation resulted in(abiotic)hydrogen production(at a stainless-steel cathode),which sustained the reductive dechlorination of TCE to less-chlorinated intermediates(i.e.,cis-DCE,VC,and ETH),at a maximum rate of 500 meq L^(-1) d^(-1),in the bulk of the reactor.A phylogenetic and functional genebased analysis of the“bioelectric well”confirmed the establishment of a microbiome harboring the metabolic potential for anaerobic toluene oxidation and TCE reductive dechlorination.However,Toluene degradation and current generation were found to be rate-limited by external mass transport phenomena,thus indicating the existing potential for further process optimization. 关 键 词：Bioelectric well Dehalococcoides mccartyi Electrobioremediation Groundwater remediation TOLUENE TRICHLOROETHENE
相关文献

参考文献(58)

引证文献(3)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费