改善农村饮水水质的一种方法——SODIS

A METHOD TO IMPROVE THE WATER QUALITY OF RURAL DRINKING WATER-SODIS

如何改善发展中国家广大农村贫困地区的饮用水水质问题仍然是当前一项十分急迫的任务。瑞士联邦环境科学技术研究院近年来在许多发展中国家推行一种新的饮用水消毒方法———阳光消毒法(SODIS),取得了良好的效益。该方法利用太阳光钝化导致腹泻的病原体的活性,从而提高饮用水的质量。该方法成本低、易操作、经济可行并可持久使用,已经在一些发展中国家逐步推广应用。

It is still a very urgent task how to improve the water quality of rural drinking water sources in the poverty-stricken areas of the developing countries throughout the world. In recent years the Research Institution of Swiss Union Environmental Science and Technology has popularized a new method of drinking water sterilization in the vast areas of many developing countries, i.e., the “Sunlight Sterilization Method” (SODIS) and better results have been achieved. This method makes use of sunlight for sterilization with the aim to reduce the activity of causative agents responsible for diarrhea. As a result, the drinking water quality is enhanced greatly. This method has the advantages of low cost, simple operation, economic feasibility and sustainability. This method is being popularized in some developing countries.