苦咸水冷冻淡化实验成果分析及实用方法研究

通过对甘肃省祖厉河、渭河等流域的苦咸水进行冷冻淡化实验,发现冷冻法对这些地区苦咸水中主要超标离子的去除效果很好,单次平均去除率可达50%以上,冷冻温度越低淡化效果越好。实验表明,对矿化度小于5 000 mg/L的苦咸水,一般在-15℃温度下,经过一次冷冻提纯就能够使水质基本达到饮用水质标准。研究认为,该法不仅可以在实际中推广和应用,而且具有采用自然能、投资小、环保无污染、简单易行、适宜于农村推广应用的特点和优势,是解决苦咸水地区人民饮水困难的有效途径之一。

Experiment of freezing and de-salting brackish water and its application

Through freezing and de-salting of brackish water from the Zuli River Basin, the Wei River Basin, and other regions in Gansu Province, it is concluded that the freezing method can remove most of the main polluting ions, up to 50% on average, and the desalinization effect is better at lower freezing temperatures. The experiment indicates that after one freezing experiment at-15℃, brackish water with a salinity of less than 5000mg/L can be used as drinking water. The results show that this method has low cost, low energy consumption, and no pollution. It can be used easily and widely, especially in rural areas, and can be one way to solve drinking water problems in places with brackish water.