化学杀菌剂对太原集中供热水体中有害菌群杀灭作用研究

Study on the effects of two germicides on sterilizing for some bacteria in the cycling hot water heating of pipeline, Taiyuan

研究了戊二醛、十二烷基二甲基苄基氯化铵对太原热网循环水中脱硫弧菌、鞘铁细菌、棒状杆菌、微球菌、葡萄球菌、芽孢杆菌和不动细菌等 7类细菌的杀菌效果 ,结果表明 :( 1 )不同浓度的戊二醛与十二烷基二甲基苄基氯化铵对 7类细菌的杀菌效果差异极显著 ,而且随着杀菌剂浓度的增加这些细菌的死亡率呈线性上升 ;( 2 )戊二醛的杀菌浓度在1 0 0 mg/L较为适宜 ,而十二烷基二甲基苄基氯化铵对脱硫弧菌和鞘铁细菌的杀菌浓度以 1 0 0 mg/L为宜 ,而对其余 5类细菌的浓度以 1 2 0 mg/L较好 ;( 3)

Siderocapsa sp.,Desulfovibrio sp., Corynebacterium sp., Micrococcus sp., Staphylococcus sp., Bacillus sp. and Acinetobacter sp. separated from the cycling hot water heating of pipeline in Taiyuan were sterilized by using glutaraldehyde (GL) and dodecylbenzyldi methyammonium chloride (DBMAC) indoor, respectively. The results indicated that: (1) the effect of GL and DBMAC concentration at each level on sterilizing 7 bacterial has significant difference, and the mortality of 7 bacterial increase on linear while the germicides concentration increase. (2) GL concentration for sterilizing the bacterial at 100mg/L is better, whereas DBMAC concentration for sterilizing Desulfovibrio sp. and Siderocapsa sp. at 100mg/L is better and the DBMAC concentration for the others at 120mg/L is suitable. (3) the germicide effect for bacterial of GL is better than that of DBMAC.