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堆肥-零价铁混合PRB处理铬污染地下水(Treatment of Cr-polluted Groundwater Using a Mixed ZVI-Compost PRB)
堆肥 零价铁 可渗透反应墙
2010/12/29
分别用堆肥、零价铁、堆肥-零价铁作为反应介质,对PRB处理铬污染地下水的可行性和有效性进行了研究。结果表明:以堆肥-零价铁作为反应介质的反应柱去除Cr(Ⅵ)的效果比单独以堆肥或铁粉为介质的反应柱好;增加铁粉或堆肥的用量均有利于Cr(Ⅵ)的去除;堆肥时间对Cr(Ⅵ)的去除效果影响不大;出水总铁含量符合《生活饮用水卫生标准》要求。
Efficiency Indicators in Irrigation Projects' Performance Evaluation: A Case Study on the Bursa Groundwater Irrigation Project
Groundwater irrigation project performance evaluation physical efficiency economic efficiency institutional efficiency
2009/1/13
Using the 1992-1996's irrigation results, 15 different physical, economic and institutional efficiency indicators were applied to the Bursa groundwater irrigation project to evaluate the performance ...