| 改性纳米零价铁去除地下水硝酸盐的研究 | 
| 张笑天, 张阳阳, 祖波, 张云霞, 陈克军 | 
| Research on nitrate removal from groundwater by modified nano-zerovalent iron | 
| Xiaotian ZHANG, Yangyang ZHANG, Bo ZU, Yunxia ZHANG, Kejun CHEN | 
| 图2 不同处理方式的凹凸棒土对NO3--N的去除率 | 
| Fig. 2 Removal rates of NO3--N by attapulgite with different treatment methods | 
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