Agricultural use of sewage sludge in India: Benefits and potential risk of heavy metals contamination and possible remediation options – A review

被引：0
作者：
Saha S. [1 ,4 ]
Saha B.N. [2 ]
Pati S. [3 ]
Pal B. [4 ]
Hazra G.C. [5 ]
机构：
[1] Agricutural Chemistry and Soil Science, Directorate of Research, Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, 741 235, West Bengal
[2] Dr. Kalam Agricultural College, Bihar Agricultural University, Kishanganj, 855 107, Bihar
[3] Govt. of West Bengal, Sandeshkhali-II block, North 24 Parganas, 743 446, West Bengal
[4] Directorate of Research, Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, 741 235, West Bengal
[5] Department of Agricultural Chemistry and Soil Science, Bidhan Chandra Krishi Viswavidyalaya, P.O. Mohanpur, Dist. Nadia, 741 252, West Bengal
来源：
International Journal of Environmental Technology and Management | 2017年 / 20卷 / 3-4期
关键词：
Bioavailability; Environmental contamination; Food chain; Heavy metals; Nitrogen; Phosphorus; Productivity; Remediation; Sewage sludge; Yield;
D O I：
10.1504/IJETM.2017.089645
中图分类号：
学科分类号：
摘要：
Application of municipal sewage sludge in agriculture is one of the best options for its safe disposal as it provides an opportunity to recycle plant essential nutrients (N, P, secondary nutrients and micronutrients) and improves soil physical, chemical and biological properties due to high organic matter content. Yield and productivity of a wide range of crops has been improved due to soil application of sewage sludge than that of well-fertilised control. Depending upon the origin, sewage sludge often contains very high amount of potentially toxic heavy metals and as such their excessive use for a longer period increases metal bioavailability in soil and ultimately causes food chain contamination. In this article we reviewed the available information on various aspects of land application of municipal sewage sludges on crop yield, soil fertility and problems of heavy metals accumulation in edible portion of the crops as well as possible options for remediation of heavy metals toxicity in contaminated soils to explore the possibility of safe recycling this waste in agriculture. Copyright © 2017 Inderscience Enterprises Ltd.
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页码：183 / 199
页数：16
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