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Position: Home > Articles > Removal of Organochlorine Pesticides by Hydrilla verticillata Journal of Agro-Environment Science 2011,30 (03) 157-161

黑藻对有机氯农药去除特性研究

作  者:
迟杰;张雷;吴万秀
单  位:
天津大学环境科学与工程学院
关键词:
黑藻;有机氯农药;去除
摘  要:
水生植物在水体污染修复中所起的作用越来越受到关注。采用室内培养方法,选取常见水生植物黑藻对α-HCH、γ-HCH和p,p′-DDT的去除特性进行了研究。结果表明,黑藻对α-HCH、γ-HCH和p,p′-DDT的降解符合一级反应动力学,降解速率常数分别为0.086、0.103d-1和0.077d-1;α-HCH、γ-HCH和p,p′-DDT在黑藻中的富集系数均显著大于1,顺序为p,p′-DDT>γ-HCH>α-HCH,主要富集在叶中;实验样品中均检出有p,p′-DDT的厌氧降解产物p,p′-DDD生成。
译  名:
Removal of Organochlorine Pesticides by Hydrilla verticillata
作  者:
CHI Jie,ZHANG Lei,WU Wan-xiu(School of Environmental Science and Engineering,Tianjin University,Tianjin 300072,China)
关键词:
Hydrilla verticillata;organochlorine pesticides;removal
摘  要:
The potential function of hydrophytes for field bioremediation has been more and more concerned.In this work,a common hydrophyte,Hydrilla verticillata,was selected to investigate its ability to remove α-HCH,γ-HCH and p,p'-DDT.The results showed that the biodegradation of α-HCH,γ-HCH and p,p'-DDT by Hydrilla verticillata followed first-order kinetics,and biodegradation rate constants were 0.086,0.103 d-1 and 0.077 d-1,respectively.The bioconcentration factors of α-HCH,γ-HCH and p,p'-DDT by Hydrilla verticillata were significantly higher than 1,and in the order of p,p'-DDT>γ-HCH>α-HCH.α-HCH,γ-HCH and p,p'-DDT were mainly enriched in leaf.p,p'-DDD,the anaerobic product of p,p'-DDT,was detected in the experiment samples.

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