Correlation Analysis for Arsenic Pollution in Coal-gangue Soil

ZHENG Jing-hua; SU Hua-mei; FAN Rong-gui; LIU Zhi-bin

doi:10.13961/j.cnki.stbctb.2014.02.036

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Correlation Analysis for Arsenic Pollution in Coal-gangue Soil

- Correlation Analysis for Arsenic Pollution in Coal-gangue Soil
- Bulletin of Soiland Water Conservation Vol. 33, Issue 2, Pages: 168-171(2014)
- 作者机构：
  
  辽宁工程技术大学环境科学与工程学院,辽宁,阜新,123000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.02.036
  CLC：
- Published：2014
- 稿件说明：
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ZHENG Jing-hua, SU Hua-mei, FAN Rong-gui, et al. Correlation Analysis for Arsenic Pollution in Coal-gangue Soil[J]. Bulletin of Soiland Water Conservation, 2014, 33(2): 168-171.
DOI：

ZHENG Jing-hua, SU Hua-mei, FAN Rong-gui, et al. Correlation Analysis for Arsenic Pollution in Coal-gangue Soil[J]. Bulletin of Soiland Water Conservation, 2014, 33(2): 168-171. DOI： 10.13961/j.cnki.stbctb.2014.02.036.

摘要

在对内蒙古自治区某矿区周边土壤环境总砷含量、全磷、有机质、含水率等项目测定的基础上

分析了土壤总砷含量、有效砷含量与土壤理化性质指标的相关性。同时

通过模拟研究区降水特点和降水量

采用淋溶试验装置

对由煤矸石和自然表层土壤组成的两组混合样品在不同pH值条件下砷的析出规律进行了实验研究。结果表明

研究区土壤有效态砷与总砷含量存在显著正相关关系;总砷含量与pH值、全磷存在一定的正相关性

与有机质和水解性氮之间的相关性不显著;土壤有效态砷含量与有机质含量呈正相关关系

与pH值呈一定的负相关关系。混合土层中砷的淋出量随淋溶液pH值的增加呈降低趋势

pH值越低

砷淋出量越高。

Abstract

The correlations of soil physicochemical parameters with the total content of arsenic(As) and the available content of arsenic were analyzed based on the measured contents of arsenic

total phosphorus

organic matter and soil moisture in soils around a mine in Inner Mongolia area. There were two mixed samples consisting of coal gangue and local natural topsoil. Arsenic was separated out from the mixed samples through leaching process at different pH values according to rainfall amount and characteristics. Results show that there was a significantly positive correlation between the available arsenic and the total arsenic content. Total arsenic content had a certain positive correlation with pH value and total phosphorus

but insignificant correlation with organic matter and hydrolysable nitrogen. The available As content had a positive correlation with organic matter

but a negative correlation with pH value. The arsenic leaching decreased with the increasing pH value of leaching solution. The lower pH value was

the higher arsenic leaching was.

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references

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