水体重金属污染的植物修复研究(Ⅱ)——种苗过滤去除水中重金属铅  

Phytoremediation for Heavy Metal Pollution in WaterⅡ.The blastofiltration of Pb from water

作　　者：渠荣遴[1] 李德森[2] 杜荣骞[2] 纪明耀[3] 

机构地区：[1]天津大学分析中心,天津300072 [2]南开大学生命科学学院,天津300071 [3]大港油田集团团泊洼开发公司,天津301607

出　　处：《农业环境保护》2002年第6期499-501,共3页Agro-Environmental Protection

基　　金：天津市自然科学基金资助项目(00360511)

摘　　要：采用室内培养方法,研究了6种作物种苗对水体中铅的去除作用。分析表明,在所选择的实验条件下,采用种苗过滤可以在72h内使水体中铅由100mg·L-1迅速减少至5mg·L-1以下。在向日葵、豌豆、蓖麻等植物幼苗的根中分别积累了高达91.6mg·g-1、40.7mg·g-1和52.8mg·g-1的铅,玉米、高粱也表现出一定的根铅积累与降低水体中铅浓度的作用。基于对实验结果进行的对比和讨论,提出选择具有“重金属超量积累倾向”的传统作物种苗进行环境水体中重金属铅污染的植物修复具有良好的应用前景。In this article, six kinds of crop seedlings were researched for removing of Pb from water with blastofiltration method. At the selected experiment conditions, the results showed that in 72 hours, the concentration of 100 mg Pb·L-1 can be down to below 5mg Pb·L-1. In the dry roots of sunflower, pea, castor-oil plant,Pb can be accumulated to 91.6, 40.7 and 52.8 mg·g-1, respectively, while corn, Chinese sorghum exhibited an ability for accumulation of Pb in the roots too. It may be suggested that several traditional crop seedlings with “super-accumulation tendency” have a good blastofiltration application prospects in phyto-remediation of Pb pollution in water.

关 键 词：重金属污染 植物修复 水体污染 种苗过滤 铅 防治 

分 类 号：X52[环境科学与工程—环境工程]