稳定性二氧化氯消毒饮用水试验观察  

EXPERIMENTAL OBSERVATION OF STABLE CHLORINE DIOXIDEAS DISINFECTANT OF DRINKABLE WATER

作　　者：薄玉霞[1] 王歆宇[1] 王万海[1] 贾松树[1] 李书建[1] 

机构地区：[1]河南省卫生防疫站,郑州450003

出　　处：《医学动物防制》2003年第2期77-78,共2页Journal of Medical Pest Control

摘　　要：目的 :为了解稳定性二氧化氯作为饮用水消毒剂的杀菌效果 ,进行实验室杀菌试验。结果 :该消毒剂 0 .5 mg/L二氧化氯对人工染有大肠杆菌的水样作用 10分钟 ,1.0 m g/L二氧化氯对人工染有大肠杆菌的水样作用 5分钟 ,其杀菌效果均达 0 cfu/10 0 m L。在 5～ 30℃、色度低于 15度、 p H6 .5～ 8.5条件下 ,含二氧化氯 2 mg/L的该消毒剂对人工染有大肠杆菌的水样作用 10分钟 ,其消毒效果均达 0 cfu/10 0 m L ,该剂量可用于 5～ 30℃、色度低于 15度、 p H6 .5～ 8.5条件下水的处理。In order to know the germicidal efficacy of stable chlorine dioxide as the disinfectant of drinkable water, germicidal test was carried out. The results show that when the water sample contaminated with Escherichia colitreated with chlorine dioxide 0.5mg/L for 10 min, 1 mg/L for 5 min, ther germicidal dfficacy attained 0cfu/100ml. Under the condition of 5~30℃? chroma under 15degree? pH6.5~8.5, 2mg/L chlorine dioxide with contacting time 10 min on Escherichia coli in water sample attained 0cfu/100ml. The result showed that this sterilization dosage can be used on the treatment of water under the condition stated above. ;Key wordstable chlorine dioxide Escherichia coli disinfectant of drinkable water Influential factorsPathological Changes Induced by the Growth of Pneumocystis CariniiIn Mice Lungs$$$$ Guo E-ping1 Tang Mu-xiang2 Song Ming-hua1(1.Department of Parasitology, Yunyang Medical College, Shiyan 442000;2.Department of Pathology, Yunyang Medical College, Shiyan 442000)AbstractObjective: To observe pathogenic and Pathological changes of pneumocystis carinii pneumonia in mice. Methods: Kunming mice underwent subcutaneous injection of cortisone acetate so that pneumocystis carinii pneumonia was induced. Form the pulmonary impression by Giemsa's staining ,the cysts and trophozoites of pneumocystis carinii were found. Histological changes were studied on the usual paraffin section by three kinds of staining, including HE, PAS and GMS.Results:5weeks after the administration of drug, the cysts of pneumocystis carinii could be identified in the pulmonary impression. 7week later, the detectable rate was 81.82%. The histological changes included: early interstitial pneumonitis with infiltration of lymphocytes and monocytes, later interstitial pneumonitis being worse, and identification of foamy intra-alveolar exudates. With PAS staining, the exudates showed pink positive reaction. Black cysts were found in GMS staining section. Conclusion: The study would give pathogenic and pathological evidence for developing the

关 键 词：稳定性二氧化氯 大肠杆菌 饮用水消毒剂 影响因素 

分 类 号：R123.6[医药卫生—环境卫生学] R187.1[医药卫生—公共卫生与预防医学]