Fraction Distributions and Availabilities of Heavy Metals in Municipal Sludge of Nanchang City

HU Mianhao; YUAN Juhong; HUANG Heping

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Fraction Distributions and Availabilities of Heavy Metals in Municipal Sludge of Nanchang City

- Fraction Distributions and Availabilities of Heavy Metals in Municipal Sludge of Nanchang City
- Bulletin of Soiland Water Conservation Vol. 29, Issue 5, Pages: 63-67(2010)
- 作者机构：
  
  1. 江西财经大学旅游与城市管理学院,江西,南昌,330032
  2. 江西财经大学艺术学院,江西,南昌,330032
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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HU Mianhao, YUAN Juhong, HUANG Heping. Fraction Distributions and Availabilities of Heavy Metals in Municipal Sludge of Nanchang City[J]. Bulletin of Soiland Water Conservation, 2010, 29(5): 63-67.
DOI：

HU Mianhao, YUAN Juhong, HUANG Heping. Fraction Distributions and Availabilities of Heavy Metals in Municipal Sludge of Nanchang City[J]. Bulletin of Soiland Water Conservation, 2010, 29(5): 63-67. DOI：

摘要

对南昌市青山污泥和纸厂污泥Hg

Pb的形态分布及其生物活性和迁移性进行了调查研究。结果表明

运用Tessier连续提取法

污泥中Hg

Pb的各形态含量之和与其总量非常接近

对Pb提取率为92.5%～94.6%

对Cr为90.1%～90.3%

表明该形态分析方法的结果是合理的。2种城市污泥中Ni

Hg的形态分布有很大的差别

且这些重金属的不同形态也存在较大的差异。青山污泥重金属生物活性系数的大小顺序是:Hg>Ni>As>Cd>Cu>Cr>Zn>Pb;迁移能力的顺序为:Hg>Ni>Cd>Cr>Zn>As>Cu>Pb。纸厂污泥重金属生物活性系数的大小顺序是:Cr>Hg>Cu>Cd>Ni>Zn>As>Pb

迁移能力的顺序是:Cr>Hg>Cd>Ni>Zn>Cu>As≈Pb。研究结果将在污泥的农业利用中为污泥中重金属危害的评估提供科学依据。

Abstract

The fraction distributions

availabilities

and mobility of Hg

and Pb in municipal sludge of Nanchang City were investigated.Results showed that the extraction percentages of Pb and Cr by Tessier's sequential extraction procedures were 96.5%～94.6% and 90.1%～90.3%

respectively.The sums of each fraction of heavy metals were in agreement with the total contents of heavy metals

which means that the fraction distributions of heavy metals in the municipal sludge given by Tessier's method were reasonable.There were significant differences in fraction distributions of heavy metals in the two kinds of municipal sludge(QCSS and ZCSS)and among the different fractions of the heavy metals.By the availabilities of heavy metals

the heavy metals in QCSS were in the order of HgNiAsCdCuCrZnPb and by the mobility of heavy metals

HgNiCdCrZnAsCuPb

respectively.In ZCSS

the corresponding orders were CrHgCuCdNiZnAsPb and CrHgCdNiZnCuAs≈Pb

respectively.The result may provide a scientific basis for the harmful assessment of heavy metals in the agricultural utilization of sewage sludge.

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