污泥施用于城市绿地土壤后重金属的积累转化  

Accumulation and Transfer of Heavy Metals in Urban Green-belt Soils for the Application of Sewage Sludge

作　　者：梁晶[1] 方海兰[1] 朱丽[1] 郝冠军[1] 

机构地区：[1]上海市园林科学研究所,上海200232

出　　处：《环境科学与技术》2013年第S2期70-73,78,共5页Environmental Science & Technology

基　　金：上海辰山植物园专项(G102402);上海市人才发展基金(2009044)

摘　　要：选取上海程桥生活污水厂污泥,施用在上海2种城市绿地土壤中,进行了为期3 a的监测实验。研究结果表明,施用污泥3 a后,Cu、Zn、Pb、Cd和Hg在土壤中的增加比例较大,但较其它几种重金属元素,Zn的累积速率最大;Cu、Hg、Zn和Ni在土壤中的迁移较小,以Zn尤为明显;且Zn在植物根系中的积累量较叶片大,高于其它重金属。The monitoring experiments were conducted on two kinds of urban green-belt soils of Shanghai for three years by using Chengqiao sewage sludge from domestic sewage treatment plant. The results showed that the cumulative amount of Cu,Zn, Pb, Cd and Hg were higher than the other heavy metals in soils which were applied sewage sludge for three years, but the cumulative rates of Zn were higher than Zn, Pb, Cd and Hg. The migration of Cu, Hg, Zn and Ni were slower than the other heavy metals in soils, especially for Zn. And there were a higher accumulation of Zn in plant roots than in leaf, which were more than the other heavy metals.

关 键 词：污泥 ZN 重金属 虹桥绿地 科研所绿地 

分 类 号：X131.3[环境科学与工程—环境科学]