甘肃民乐铬盐厂遗留渣场土壤污染特征及分布规律
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摘要
采取3组土壤全分析、126组总铬及六价铬的样品测试和对比分析,认为甘肃民乐铬盐厂遗留渣场土壤污染物质为铬污染;受主风向的影响,铬污染趋势以堆渣处为中心,沿沟脑及沟口扩散并减弱,东南方向比西北方向受污染严重;总铬及六价铬含量变化趋势基本一致,随深度增加而减少;确定了受污染面积及深度,掌握土壤污染特征及分布规律,为土壤污染治理提供可靠的科学依据。
Three groups of soil analysis, 126 groups of total chromium and hexavalent chromium samples were tested and compared. It is believed that the soil pollutants in the residual slag yard of Gansu Minle Chromium Salt Plant are chromium pollution; the trend of chromium pollution is affected by the main wind direction. The slag is centered, diffused and weakened along the gully and gully, and the southeast is more polluted than the northwest. The trend of total chromium and hexavalent chromium is basically the same, decreasing with depth; determining the contaminated area and depth. Master the characteristics and distribution of soil pollution and provide a reliable scientific basis for soil pollution control.
Three groups of soil analysis, 126 groups of total chromium and hexavalent chromium samples were tested and compared. It is believed that the soil pollutants in the residual slag yard of Gansu Minle Chromium Salt Plant are chromium pollution; the trend of chromium pollution is affected by the main wind direction. The slag is centered, diffused and weakened along the gully and gully, and the southeast is more polluted than the northwest. The trend of total chromium and hexavalent chromium is basically the same, decreasing with depth; determining the contaminated area and depth. Master the characteristics and distribution of soil pollution and provide a reliable scientific basis for soil pollution control.
引文
[1]《甘肃民乐富源化工有限责任公司无害化处置遗留13.47万吨铬渣项目环境影响评价书》[R],兰州大学,2010.