随着聚合物驱油技术在油田的广泛推广,部分水解聚丙烯酰胺(HPAM)在为油田提高采收率的同时,对当地环境也产生了相当大的危害。本文在对含聚污水水质分析和可生化性分析的基础上对污水进行可生化性调整,运用“气浮-uASb-水解酸化-微生物固定化反应器“组合工艺对含聚污水进行了生化处理模拟实验。模拟实验分为静态模拟和动态模拟两部分。静态模拟实验中,降解6天后,聚丙烯酰胺降解率达到89.7%。动态模拟试验中,组合工艺处理2天以后,HPAM降解率为88.65%,原油总去除率为99.40%,出水COd总去除率为93.40%。利用扫描电镜(SEM)和红外光谱分析聚丙烯酰胺降解产物,显示HPAM由大分子物质断裂成小分子物质,HPAM的酰胺基转化为羧基。Polymer flooding technique has become an important method of enhanced oil recovery.But the application of partially hydrolyzed polyacrylamide(HPAM) in oilfield meets many environmental problems.Based on water analysis and biodegradability analysis of HPAM-containing wastewater,improved biodegradability of wastewater was achieved.Laboratory simulation treatment of wastewater was performed by the "flotation-up-flow anaerobic sludge bed(UASB)-hydrolysis acidificationimmobilized microorganism reactor" integrated process.There were two parts in simulation experiment,one was static,and the other was dynamic.After 2 d static biochemical treatment,the degradation ratio of HPAM in wastewater was up to 89.7%.And in dynamic simulation experiment,after 2 d treatment,the degradation ratio of HPAM was up to 88.65%,that of oil was 99.40%,that of COD was 93.40%.HPAM degradation products were analyzed by scanning electron microscopy(SEM) and infrared spectroscopy.The results showed that HPAM was transformed from bigger molecules into smaller molecules and acylamino group in HPAM was transformed into carboxyl group.国家863计划项目(2008AA06Z304
