泰州市二次供水卫生状况与管理研究

为了创建国家卫生城市，于2005年7～10月对泰州市52家二次供水单位进行了整治，对影响水质细菌总数超标的环节进行了分析。结果发现细菌总数超标18家，占34．6％，大肠菌群超标1家，占2．0％，游离性余氯低于正常18家，占34．6％。对影响细菌总数超标的众多因素进行分析后，确定水质关键控制点在于是否设立专职的卫生管理员、卫生管理员是否经过培训、水箱内壁是否清洁、水箱是否定时清洗、清洗是否由专业人员完成、周围有无污染源等。通过2个多月的整改，效果明显X^2=7．8，P〈0．01。说明加强上述6项因素的监督管理，对二次供水水质的改善起着重要作用。

In order to achieve the reguirements of national good hygiene city, 52 units of secondary water supply in Taizhou were investigated during the period of July I to October 30 in 2005, and the key points of influencing bacterial count were analyzed. The results showed that bacterial count was over 100 per milliliter in 18 units, accounting for 34.6%, Coliform bacteria was over 3 per liter in 1 unit, accounting for 2.0% and the lever of free chlorine residual was under 0.05mg per liter in 18 units, accounting for 34.6%. Whether there were full- time hygiene administration professionals, trained hygiene manager, the interior of water tank cleaned by professionals on definite time, pollution resources within a distance of 25 meter or not were key points resulting in bacterial count rising. It was satisfied with two months rectification and improvement toward secondary water supply （X^2 = 7.8, P〈0.01 ）. So enhancing the management of six critical control l：oints influencing water quality mentioned above would play an important role in secondary water supply.