铁、锂电气石对脱氯菌降解三氯乙烯的影响  

Effect of iron/lithium tourmaline on reductive dechlorination of trichloroethylene by Dehalococcoides spp.

作　　者：冯炘[1] 王玉婷[1] 岳俊杰[1] 王薇[2] 李铁龙[2] 

机构地区：[1]天津理工大学环境科学与安全工程学院,天津300384 [2]南开大学环境科学与工程学院,天津300071

出　　处：《天津理工大学学报》2015年第3期39-42,共4页Journal of Tianjin University of Technology

基　　金：国家自然科学基金(31200396);天津自然科学基金(12JCYBJC32200;14JCQNJC08500)

摘　　要：针对不同电气石的性能及其对脱氯菌群降解三氯乙烯(TCE)效果影响的差异,分别研究了铁电气石和锂电气石对水溶液的p H、电导率和氧化还原电位的调节作用及其对脱氯菌群降解TCE效果的影响.结果表明,铁电气石在对溶液p H的调节作用、提高溶液电导率的性能和降低溶液氧化还原电位的能力方面都要优于锂电气石;且基于这些性能的优势,铁电气石对脱氯菌群降解TCE的促进作用较锂电气石更为明显,在降解相同浓度的TCE时,其效率可提高30%,说明铁电气石在促进脱氯菌群降解TCE的应用方面较锂电气石更具有优势.Regulatory role of water＇s pH, conductivity, ORP and the effects of Trichloroethylene （TCE） degradation by dif- ferent tourmalines were studied. The results showed that iron tourmaline was better than lithium tourmaline in the ability to regulate pH of solutions, improve conductivity and reduce ORP of water solution. Based on these advantages, the performance of iron tourmaline was more obvious than lithium tourmaline in promoting the degradation of TCE by Dehalococcoides spp., and the efficiency could be increased by 30%. So iron tourmaline has more advantages in promoting the degradation of TCE by Dehalococcoides spp. than lithium tourmaline.

关 键 词：铁电气石 锂电气石 三氯乙烯 脱氯菌 降解 

分 类 号：X523[环境科学与工程—环境工程]