不同杀菌剂对太原热网循环水中rn有害菌群杀菌特性的研究

摘要

Slimeforming heterotrophic bacteria,sulfate reducing bacteria and iron bacteria separated from the cycling hot water heating of pipe line in Taiyuan were sterilized by using glutaraldehyde(GL),dodecylbenzyldi-met hyammonium chloride(DBMAC)and dioctadecyldimethylammonium chloride (DMAC)and the ir mixture indoor,respectively.The results indicated that each mixture germicide was different from the others and each single composition germicide was differe nt from the others on the sterilization effects,moreover,the sequence of their g ermicide effect was as follows:that of no.4 mixture (2(GL):2(DBMAC):1(DMAC))＞th at of GL＞that of DBMAC＞that of DMAC,among which the sterilization effect of th e no.4 mixture on disinfecting bacteria is the better than the others.%将太原热网循环水中富集分离的粘液异养菌群、硫 酸盐还原菌群及铁细菌群作为指示菌群，进行了戊二醛、十二烷基二甲基苄基氯化铵、双十 八烷基二甲基氯化铵及复配杀菌剂的室内静态杀菌实验。结果表明不同复配杀菌剂的杀菌协 同效应不同，各种单组分杀菌剂的杀菌效果也各不相同。通过分析比较认为各杀菌剂的杀菌 效果依次是：4号复配杀菌剂＞戊二醛＞十二烷基二甲基苄基氯化铵＞双十八烷基二甲基氯 化铵，4号复配方案中三种杀菌剂的协同效应最强。