| 利用磷进行铅污染土壤原位修复中需考虑的几个问题 |
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| 引用本文： | 陈世宝,李 娜,王 萌,韦东普.利用磷进行铅污染土壤原位修复中需考虑的几个问题[J].中国生态农业学报,2010,18(1):203-209. |
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| 作者姓名： | 陈世宝 李 娜 王 萌 韦东普 |
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| 作者单位： | 1. 农业部植物营养与养分循环重点实验室/中国农业科学院农业资源与农业区划研究所,北京,100081
2. 农业部植物营养与养分循环重点实验室/中国农业科学院农业资源与农业区划研究所,北京,100081;河北农业大学,保定,071001 |
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| 基金项目： | 国家高技术研究发展计划(863计划)项目(2008AA10Z404、2006AA06Z360)及教育部留学人员回国基金 |
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| 摘 要： | 由于土壤中磷与铅形成难溶性的磷酸铅类化合物Pb5(PO4)3X,X=Cl-,OH-,F-等],利用不同廉价含磷物质进行铅污染土壤原位修复被认为是目前最好的铅污染土壤管理措施,受到国内外广泛关注。本文对目前国内外利用磷进行铅污染修复研究的现状进行了综述,对该研究领域中的关键问题,如磷酸铅类化合物形成的反应动力学过程控制、最佳pH、土壤中磷/铅摩尔比等进行了较深入的探讨,并展望了今后的研究方向,以期为铅污染土壤的修复及其效果评价提供参考。
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| 关 键 词： | 铅 磷 污染土壤 原位修复 磷酸铅类化合物 |
Factors needed to be re-considered during in-situ remediation practices of Pb-polluted soils with P |
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| CHEN Shi-Bao,LI N,WANG Meng and WEI Dong-Pu.Factors needed to be re-considered during in-situ remediation practices of Pb-polluted soils with P[J].Chinese Journal of Eco-Agriculture,2010,18(1):203-209. |
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| Authors: | CHEN Shi-Bao LI N WANG Meng and WEI Dong-Pu |
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| Institution: | Key Laboratory of Plant Nutrition and Nutrient Cycling of Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China;1. Key Laboratory of Plant Nutrition and Nutrient Cycling of Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2. Hebei Agricultural University, Baoding 071;Key Laboratory of Plant Nutrition and Nutrient Cycling of Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Key Laboratory of Plant Nutrition and Nutrient Cycling of Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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| Abstract: | The presence of phosphorus (P) and lead (Pb) in soil can lead to the formation of highly insoluble minerals of Pb5(PO4)3X (where X can be Cl?, OH?, F?, etc.). Hence low-cost phosphate-containing materials utilization was proposed as the best management practice (BMP) for remediation of Pb-polluted soils. Current studies involving in-situ remediation of Pb-polluted soils via phosphorus-compounds are reviewed in this paper. Key factors controlling pyromorphite formation kinetic, solution optimal pH and P/Pb molarity ratio, etc. are discussed in detail. Meanwhile, prospective studies are also discussed with the view to providing further information on remediation practices and their efficiencies in dealing with Pb-polluted soils. |
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| Keywords: | Lead Phosphorus Polluted Soil In-situ remediation Pb5(PO4)3X |
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