重庆理工大学学报（自然科学版）2013，Vol.27Issue(8)：47-53,61,8.DOI:10.3969/j.issn.1674-8425(z).2013.08.010
非生物螯合剂EDTA与生物螯合剂EDDS联合施用提高植物提取土壤重金属效应的研究
Effects of EDTA、EDDS Phytoextract Artificially Polluted Soil with Heavy Metals
摘要
Abstract
In order to to minimum environmental risks while maximizing the mixture induced activation effect of heavy metals,the cumulative effect of chelation of heavy metals in plant biotechnology induction efficiency,dicotyledonousoilseed rape (Brassica junica),monocots maize (Zea mays L) pot experiment was conducted to explore the feasibility of joint best ratio of non-biological chelating agent EDTA and biological chelating agent EDDS application of phytoremediation of soil heavy metals,basing on a simulation by Pb,Cu,Cd complex contaminated soil.The results show that,The chelator EDTA-EDDS joint application of plant extracts effect on corn monocots and dicots rapeseed strong role in promoting.Soil available metals Pb,Cu,adding a chelating agent EDTA/ratio of EDDS 2,the highest of 3 86.5 mg · kg-1,1 369 mg · kg-1,respectively.Soil available Cd metal plus chelating agent EDTA/EDDS ratio,the highest 89.6 mg · kg-1.Plant underground part and shoot Pb,Cu,Cd bioaccumulation amount of added chelating agent EDTA/highest ratio of EDDS.关键词
螯合剂/土壤修复/重金属Key words
chelating agent/ soil remediation/ heavymetal分类
环境科学引用本文复制引用
白薇扬,赵清华,谭怀琴..非生物螯合剂EDTA与生物螯合剂EDDS联合施用提高植物提取土壤重金属效应的研究[J].重庆理工大学学报（自然科学版）,2013,27(8):47-53,61,8.基金项目
重庆教委科学技术研究项目(KJ120816) （KJ120816）
