【摘要】 聚丙烯酰胺,以hungate滚管法从含聚合物驱污水中分离出一株聚丙烯酰胺降解菌,命名为S10菌株.经生理生化、形态学鉴定为肠杆菌属,革兰氏阳性（G-）,短杆状,产硫化氢,兼性厌氧。S10菌株能以聚丙烯酰胺为碳源,在不加碳源的含聚丙烯酰胺的培养基中生长。降解产物经气质联机分析表明,聚合物发生断链生成多种低分子量的化合物。在聚丙烯酰胺浓度为1000mg·L^-1时,10d的降解率为24%,粘度下降40%。环境影响因子试验结果表明,S10菌株降解最佳条件为pH为8.0,温度为40℃,聚丙烯酰胺在较低的浓度,SO42-浓度为600mg·L^-1。更多还原

【Abstract】 Now polyacrylamide was used widely.A polyacrylamide degrading bacteria was isolated by hungate anaer- obic technique from waste water with polyacrylamide.The isolate was named S10.It was Enterobacter,gram-negative, periphyral flagella,short bacillus,anaerobic bacteria capable sulfate reduced to H₂S by physiological and biochemical index and morpbologic.Living on PAM as the sole source of carbon source,lateral chain was degraded after the bacteria added by infrared.Gas Chromatography analysis showed that degradation was a lot of low molecular weight compounds.24% of PAM (1000 mg·L^-1) was degraded in 10 days and viscosity of solution was reduced 40%.The experiments of degrada- tion factor showed that the best effect of degradation was pH 7.5,temperature 40℃,low of PAM,SO₄^2-(600mg·L^-1)更多还原