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目的了解乌鲁木齐市水源微生物的背景,为水源性疾病的防治研究提供依据。方法采集乌鲁木齐市8个主要水源水样本,进行细菌总数测定和优势细菌种群的鉴定。结果水磨河12、、3、4、5号泉水和八一闸水源地水中,粪大肠值每100 mL为0,细菌总数依次为3、4、8、2、7、5 cfu/mL,仅含少量的非发酵G-假单胞细菌和G+球菌;乌拉伯水库和红雁池水库水中粪大肠菌数和细菌总数均超过Ⅲ类水源水标准;2个水库水中优势细菌类群基本一致,分离出148株细菌,优势菌为9个种属,其中革兰氏阳性菌占60%,革兰氏阴性菌占40%;革兰氏阳性菌中芽孢杆菌属Bacillus占27%,葡萄球菌属Staphylococcus、微球菌属Micrococcus和棒状型菌属Coryne-forms分别占16%、9%和8%。结论乌鲁木齐市自来水多数水源地水中细菌总数及粪大肠菌值均符合Ⅰ类水源水要求,但乌拉伯水库及红雁池水库水体为轻度或中度污染。
Objective To understand the background of water-source microorganisms in Urumqi and provide the basis for prevention and treatment of water-borne diseases. Methods Eight major water source samples were collected from Urumqi for total bacterial count and identification of dominant bacterial populations. Results In water of 12, 3, 4, 5 and water of Bayi gate, the fecal colon value was 0 per 100 mL, the total number of bacteria was 3,4,8,2,7,5 cfu / mL, only Few non-fermentative G-pseudomonads and G + cocci were found in the reservoirs. The fecal coliform bacteria and total bacteria numbers in the Urabu reservoir and Hongyanchi reservoir waters all exceeded the water quality standards for Grade III water sources. The dominant bacteria in the two reservoirs were basically the same, separated Out of 148 strains of bacteria, dominant bacteria were 9 species, of which Gram-positive bacteria accounted for 60%, Gram-negative bacteria accounted for 40%; Gram-positive bacteria Bacillus accounted for 27% Staphylococcus , Micrococcus Micrococcus and Coryne-forms accounted for 16%, 9% and 8% respectively. Conclusion The total number of bacteria and fecal coliform in water of most water sources in Urumqi are in line with the requirements of Class I source water, but the water in the Ulab reservoir and Hongyanchi reservoir is mild or moderate pollution.