| 利用废弃物煅烧水泥时重金属Pb、Cd的逸放污染 |
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| 引用本文： | 林少敏,黄利榆.利用废弃物煅烧水泥时重金属Pb、Cd的逸放污染[J].生态环境,2010(1):77-80. |
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| 作者姓名： | 林少敏 黄利榆 |
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| 作者单位： | 韩山师范学院环境化学应用技术研究所; |
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| 基金项目： | 国家自然科学基金项目(20377014); 广东省自然科学基金项目(8452104101001541); 韩山师范学院博士科研启动项目2008 |
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| 摘 要： | 利用废弃物作为代替原料煅烧水泥已广泛应用于水泥生产，但其带来的环境污染问题不容忽视。以利用废弃物生产水泥的厂家为研究对象，采用原子吸收分光光度法检测所采集样品中重金属Pb、Cd的含量，对水泥生产过程中重金属Pb、Cd的逸放及其对周围土壤的污染进行研究。研究结果表明：利用废弃物煅烧水泥的过程中，重金属Pb、Cd的逸放率很高，其中立窑的Pb、Cd逸放率高达84％～90％。湿法回转窑的Pb、Cd逸放率达到63％～74％；在水泥厂上下风向500m、1000m和2000m处采集土壤样品，工厂周围的土壤均已受到不同程度的重金属污染，位于工厂下风向的土壤受到的污染更为严重，距离工厂500m处土壤中重金属Pb、Cd的含量均超过了国家标准的最大限量；对几家工厂员工的头发进行随机取样，头发样品中Pb含量均超过正常限量：
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| 关 键 词： | 重金属 废弃物 煅烧 逸放污染 土壤 |
Emission pollution of heavy metals Pb and Cd during cement calcinations by utilizing waste materials |
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| LIN Shaomin,HUANG Liyu Research Institute of Environmental Chemistry , Technology,Hanshan Normal University,Chaozhou,Guangdong ,China.Emission pollution of heavy metals Pb and Cd during cement calcinations by utilizing waste materials[J].Ecology and Environmnet,2010(1):77-80. |
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| Authors: | LIN Shaomin HUANG Liyu Research Institute of Environmental Chemistry Technology Hanshan Normal University Chaozhou Guangdong China |
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| Institution: | LIN Shaomin,HUANG Liyu Research Institute of Environmental Chemistry , Technology,Hanshan Normal University,Chaozhou,Guangdong 521041,China |
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| Abstract: | Waste materials were utilized as raw materials during cement production widely,and the problem of environmental pollution must be noticed.The cement plants which utilizing waste materials were investigated,the emission pollution of heavy metals Pb,Cd and the soil pollution around cement plants during cement production were discussed in this article.The contents of Pb and Cd were detected by means of atomic absorption spectroscopy (AAS).The emission rates of Pb and Cd during cement calcinations were very hig... |
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| Keywords: | heavy metal waste materials calcinations emission pollution soil |
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