西北干旱地区农宅雨水转化为可饮水技术

雨水集流工程对于解决干旱地区人民生活用水问题起着重要作用,甘肃省兰州市榆中县北山地区处于严重缺水的地区,人畜的饮用水为雨水、雪水直接沉淀后的水窖水。经过对北山饮用水进行水质检测,发现水中浊度、锰含量、微生物数量均超过《生活饮用水卫生标准》(GB5749-2006)的规定值。通过对传统滤池进行改造并结合阳光消毒研制出了一种新型水处理器——阳光消毒-生物砂滤池(SBF)家庭水处理设备,通过生物砂滤池中微生物对雨水中污染物的氧化分解及河砂的过滤使水浊度及锰得到有效地去除,日光高温灭活和光氧化降解综合作用杀灭水中致病微生物。用SBF家庭水处理设备对雨水进行处理,水中浊度、锰含量、微生物数量均达到标准的规定值。

Drinking water technology of rural housing rainwater treatment at arid regions of northwest China

It is very important to solve the domestic water shortages by rainwater collection systems.Beishan area of Yuzhong County lies in Lanzhou City,and is a serious water shortage region.The drinking water of human and animal is rain and snow from water cellar precipitated directly.After measured the water quality,the results showed that turbidity,manganese concentration and the quantity of microorganisms are over "standards for drinking water quality" (GB5749-2006),respectively.Solar water disinfection:bio-sand filter (SBF) home water treatment equipment is developed,which is new water processor and to transform the traditional filter combined with solar disinfection.Pollutants of water were oxidized and decomposed with micro-organisms,and filtrated by the bio-sand,so turbidity and manganese were effectively removed.Meanwhile,pathogenic microorganisms in water were killed by high-temperature inactivation of daylight and photo-oxidation degradation.After treating with SBF of household water treatment equipment,turbidity,manganese concentration and the quantity of microorganisms of rainwater are up to the standard of the specified value,respectively.