Reclaimed water: A safe irrigation water source?

被引：123
|
作者：
Chen, Weiping [1 ]
Lu, Sidan [1 ]
Jiao, Wentao [1 ]
Wang, Meie [1 ]
Chang, Andrew C. [2 ]
机构：
[1] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
[2] Univ Calif Riverside, Dept Environm Sci, Riverside, CA 92521 USA
来源：
ENVIRONMENTAL DEVELOPMENT | 2013年 / 8卷
基金：
中国国家自然科学基金;
关键词：
Reclaimed water irrigation; Soil salinization; Heavy metal pollution; Emerging contaminants; Nitrate leaching; Pathogens;
D O I：
10.1016/j.envdev.2013.04.003
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Municipal wastewater reclamation and reuse provides an effective way to solve water resource problems in arid and semi-arid regions, lrrigation is the major reuse for reclaimed water. In this paper, we analyzed the benefits and risks associated with reclaimed water irrigation to demonstrate that it is a safe water resource when appropriately applied. The analysis showed that reclaimed water is an economical water resource with potential benefits in ameliorating soil health conditions and saving fertilizer. Salts, nitrogen and pathogens were the major risk sources for reclaimed water irrigation, while risks associated with heavy metals and emerging contaminants were low. Risk management practices were summarized. Given that there are huge potential benefits and the risks can be controlled by proper field management, irrigation with reclaimed water should be encouraged and promoted. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：74 / 83
页数：10
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