不同植物组培苗对多氯联苯的移除效果研究  

Removal Effects of Polychlorinated Biphenyls by Tissue Cultured Seedlings of Different Plants

作　　者：刘宇超 王磊[3] 刘铭[1,2] 赵新伟 张爽 杜克久[1,2] 

机构地区：[1]河北农业大学,河北保定071001 [2]河北省林木种子资源与森林保护重点实验室,河北保定071001 [3]河北省地矿中心实验室,河北保定071001

出　　处：《环境科学与技术》2017年第12期186-192,共7页Environmental Science & Technology

基　　金："十二五"农村领域国家科技计划课题(2012AA101403);国家自然科学基金项目(30972384);环境化学与生态毒理学国家重点实验室开放基金课题(KF2009-03)

摘　　要：多氯联苯(polychlorinated biphenyls,PCBs)是有机污染物的一种,容易在人体和动物体内富集放大,严重影响了人类的健康。在众多修复方式中,植物修复具有成本低、无二次污染等优势,已成为多氯联苯修复的主要研究方向。利用不同植物组培苗污染物暴露体系,对荻、油菜、毛白杨、藏川杨、刺槐移除Aroclor1254进行了研究。气相色谱定量分析发现培养45 d荻组培苗对Aroclor1254的单位生物量的移除率为11.214μg/g;培养30 d油菜组培苗对Aroclor1254单位生物量的移除率为11.032μg/g;培养35 d毛白杨组培苗对Aroclor1254单位生物量的移除率为41.807μg/g;培养35 d藏川杨组培苗对Aroclor1254单位生物量的移除率为38.655μg/g;培养45 d刺槐组培苗对Aroclor1254单位生物量的移除率为73.478μg/g。Aroclor1254暴露条件下刺槐根毛发育好于其他4种植物,表现出较好的适应性和较好的移除效果。Polychlorinated biphenyls（PCBs） as a kind of organic pollutants, is easy to be enriched in human and animal,which seriously affects the health of the nature and human beings. Among lots of remediation methods, phytoremediation has become the main research direction of PCBs degradation, with cost effectiveness and no secondary pollution. In this paper, us-ing the tissue cultured seedling of pollutants exposure system, the removal of Aroclor 1254 by Triarrhena sacchariflora（Maxim.）Nakai, Brassica campestris L., Populus tomentosa Carr., Populus szechuanica Schneid.Var.tibetica Schnei, Robinia Pseudoacacia Linn. were studied. The removal rate of Aroclor1254 from the tissue cultured seedlings was obtained by GC-μECD. The removal rate of unit biomass of Triarrhena sacchariflora（Maxim.）Nakai is 11.214 μg/g after 45 days, while for Brassica campestris L. 11.032 μg/g after 30 days; Populus tomentosa Carr. 41.807 μg/g after 35 days; Populus szechuanica Schneid.Var. tibetica Schnei 38.655 μg/g after 35 days; and Robinia pseudoacacia Linn 73.478 μg/g after 45 days. Under the condition of Aroclor1254 exposed, acacia growth is better than the other four kinds of plants, showing better adaptability and better removal effect.

关 键 词：多氯联苯 组培苗 移除率 

分 类 号：X53[环境科学与工程—环境工程]