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| Influence of water quality on element leaching of sandy compacted gravel under freeze-thaw cycle conditions |
| LI Wangcheng1, 2*, ZHAO Yan, WANG Xia3, WANG Shuangtao3, LI Chen3, WANG Xing3, DONG Yaping3 |
| 1. Ningxia Water Saving Irrigation and Water Resources Regulation Engineering Research Center, Yinchuan, Ningxia 750021, China; 2. Engineering Research Center of Ministry of Education for High Efficient Utilization of Modern Agricultural Water Resources in Dry Areas, Yinchuan, Ningxia 750021, China; 3. School of Civil and Water Conservancy Engineering, Ningxia University, Yinchuan, Ningxia 750021, China |
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Abstract In order to understand the effect of water quality treatments on leaching and release of elements in freeze-thaw cycles in sandy compacted land in Ningxia region, the element content of brac-kish water in Zhongwei city of Ningxia was measured by using inductively coupled plasma emission spectrometer and inductively coupled plasma mass spectrometer. The influence of different water quality on the leaching and release of elements was explored by freeze-thaw cycle tests. The results show that when the water quality remains the same, the total amount of element released in leaching solutions increases with increasing number of freeze-thaw cycles. When the number of freeze-thaw cycles is kept constant, the total amount of element released in distilled water treatment is larger than that in brackish water treatment, and brackish water inhibits the element release to a certain extent under freeze-thaw cycle conditions.
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Received: 09 September 2018
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