黄河三角洲高矿化度地下水淡化试验研究

Experimental Study on High Salinity Groundwater Desalination in Yellow River Delta Area

黄河三角洲地区高矿化度地下水资源丰富,开展高矿化度地下水脱盐技术研究对于提高当地水资源保障程度具有重要的现实意义。冻融淡化是利用物理化学相分离原理实现水体脱盐的方法。室内试验显示,较低的冷冻温度、较长的冷冻时间对于脱盐不利。野外动态试验显示,该方法对于黄河三角洲地区高矿化度地下水淡化具有较好的操作性和可行性。

The Yellow River delta is rich in high-salinity groundwater resources. Developing desalting technology has important practical signifi- cance for improving local water resources security. Freezing-thawing desalination is a way to achieve water desalination by using physical and chemi- cal phase separation principle. Laboratory test indicated that the conditions of lower freezing temperature and longer freezing time would bring ad- verse effects for desalination. The results of field dynamic tests show that this method is feasible for high-salinity groundwater desalination in the Yellow River delta area.