| 污泥土地利用中重金属铜污染地下水的潜在风险研究 |
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| 引用本文： | 俞珊,付新梅,李云飞,唐兵.污泥土地利用中重金属铜污染地下水的潜在风险研究[J].四川环境,2010,29(4):35-37. |
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| 作者姓名： | 俞珊 付新梅 李云飞 唐兵 |
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| 作者单位： | 1. 西南科技大学固体废物处理与资源化省部共建教育部重点实验室,四川,绵阳,621010
2. 西南科技大学环境与资源学院,四川,绵阳,621010 |
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| 基金项目： | 绵阳市科技计划项目，西南科技大学科研基金资助项目 |
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| 摘 要： | 本研究旨在通过土柱淋溶实验来研究堆肥污泥土地利用后重金属铜的溶出性,以及对地下水的影响。结果表明:与去离子水相比,模拟酸雨(pH=4.5)会使土壤中Cu的淋溶强度增加,并更能促使其向下迁移。经长期淋溶后发现,淋出液中铜的浓度呈现有起伏的递减趋势,最高峰浓度达到0.0702mg/L,远低于地下水Ⅲ类标准(1.0mg/L),污泥土地利用后Cu对地下水的污染风险较小。
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| 关 键 词： | 堆肥污泥 铜 淋溶 |
Study on Potential Risk of Groundwater Pollution by Cu from Sewage Sludge Applied for Land |
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| YU Shan,FU Xin-mei,LI Yun-fei,TANG Bing.Study on Potential Risk of Groundwater Pollution by Cu from Sewage Sludge Applied for Land[J].Sichuan Environment,2010,29(4):35-37. |
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| Authors: | YU Shan FU Xin-mei LI Yun-fei TANG Bing |
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| Institution: | 1.Key Laboratory of Solid Waste Treatment ＆ Resource Recycle(SWUST),Ministry of Education,Mianyang,Sichuan 621010,China;2.School of Environment ＆ Resource,Southwest University of Science ＆ Technology,Mianyang,Sichuan 621010,China) |
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| Abstract: | In this paper,experiments were conducted adopting soil column eluviation to study leachability of Cu from composted sewage sludge that applied for land as well as its influence on ground water.The result showed that compared with deionized water,simulated acid rain（pH=4.5） would improve the eluviation of Cu in soil and promote Cu to move downward.It was found that through long-term eluviation,the concentration of Cu in leachate decreased progressively with fluctuation.Its maximum concentration reached 0.0702 mg/L,which was much lower than the Standards Ⅲ（1.0mg/L）of ground water quality.Therefore by applying the composted sewage sludge for the land,the risk of Cu polluting ground water would be low. |
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| Keywords: | Sewage sludge composting Cu eluviation |
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