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我院曾对肠炎发病率比较高的生产大队,在饮水河道中采了水样,通过细菌培养检验,发现每毫升水中含细菌1,041个,大肠杆菌阳性;我们将这种水,用明矾(每两明矾处理二百斤水)沉淀以后,再次作细菌培养检验,发现每毫升水中只含细菌39个,大肠杆菌阴性。(编者注:我国政府关于生活饮用水的卫生要求中规定,每毫升水中细菌总数不得超过100个,每升水中大肠杆菌不得超过3个。)
Our hospital had higher incidence of enteritis incidence of production brigade, drinking water samples taken in the drinking water through the bacterial culture test found that per ml of water containing 1,041 bacteria, E. coli positive; we will this water, with alum Two alum treated two hundred pounds of water) After precipitation, once again for bacterial culture test and found that only 39 bacteria per ml of water, E. coli negative. (Editor’s note: The Chinese government’s hygiene requirements for drinking water stipulate that the total number of bacteria per milliliter of water shall not exceed 100 and no more than three E. coli per liter of water.)