村镇苦咸水源安全饮用淡化方法比较

DESALINATION METHODS APPLICATION TO SMALL TOWNS AND VILLAGES FOR DRINKING SAFELY

对可能适用于村镇苦咸水淡化的反渗透法、膜蒸馏法、盘式蒸馏法和降膜蒸发法进行了比较,综述了各种方法的研究进展,对比了各种方法的优缺点,分析了各种方法在村镇的适应程度,并预测了村镇未来苦咸水淡化方法的发展趋势。

In western part of china, many small towns and villages were lack of water resources, so people must drink salt water which would be harmful to health if not to be desalinated. Small towns and villages had their own characteristics and confined conditions of water resources, for which traditional methods might not be appropriate. Thus comparing and choosing an economical and feasible desalt method could meet the urgent needs of water supply in small towns and villages. In the passage, reverse omission, falling film evaporator, membrane distillation and solar-disc distillation were discussed. Besides, advantages, disadvantages and development of all desalination methods were described. According to the results, development trends of desalination in small towns and villages were forecasted.