Eztractability and Bio-availability of Heavy Metals in Municipal Sludge
Adopedt five kinds of extractants respectively to extract the availability of heavy metals Cd, Pb, Ni, Zn, Cu from the stabilized municipal sludge, at the same time did wheat pot experiments. Then made correlation analysis between the extracting content and the accumulation amount in wheat leaves and roots. It showed that the availability contents of each elements was quited different from the others. Compared with other four extractants, EDTA was in obvious advantages for its best correlation degree. However, comparatively speaking, Pb and Zn don`t had so obvious correlation. It may be related with the transfer ability of one element from roots to leaves. The results showed that EDTA was a more satisfactory extractant.
municipal sludge heavy metals eztractability bio-availability
YUAN Peizhu HU You-biao XIE Hongzhi
School of Earth Science and the Environment Anhui University of Science and Technology Huainan,China,232001
国际会议
北京
英文
1-4
2009-06-11(万方平台首次上网日期,不代表论文的发表时间)