发生洪涝灾害时,根据受灾程度,往往造成村庄过水.房屋倒塌。水井被淹,一片汪洋。环境受到严重污染,卫生状况迅速恶化。其水质特点,主要是微生物污染严重,浑浊度大。在饮用水的管理上,稍有不慎,极易造成肠道传染病等的爆发和流行。因此, In the event of a flooding, depending on the extent of the disaster, water often flows through the village and the house collapses. Wells flooded, a vast expanse of water. The environment is seriously polluted and health conditions deteriorate rapidly. Its water quality characteristics, mainly microbial contamination, turbidity. In the management of drinking water, a little careless, easily lead to the outbreak and epidemic of intestinal infectious diseases. therefore,