CAJ | 학술논문

为降低膜生物反应器(MBR)运行能耗和延缓膜污染,以厌氧折流板反应器(ABR)-MBR工艺处理生活污水为例,采用间歇曝气和添加颗粒填料两种方式对工艺脱氮除磷运行条件和膜污染问题进行研究.结果表明,增大间歇曝气时间有利于提高氮磷的去除效果,对 COD、NH4+-N、TN和TP的平均去除率分别为91%、95%、84%和92%(工况4),而添加颗粒填料对氮磷的去除没有显著影响.双重好氧-缺氧交替环境强化了工艺对磷的去除.添加颗粒填料比间歇曝气更能有效延缓膜污染,同时改变了膜污染的形成过程,膜内部污染物含量显著增多,与泥饼层相比,多糖成为了膜污染的主要因素,不会对膜组件本身构成危害,增强了MBR反应器的实际应用性能.
위강저막생물반응기(MBR)운행능모화연완막오염,이염양절류판반응기(ABR)-MBR공예처리생활오수위례,채용간헐폭기화첨가과립전료량충방식대공예탈담제린운행조건화막오염문제진행연구.결과표명,증대간헐폭기시간유리우제고담린적거제효과,대 COD、NH4+-N、TN화TP적평균거제솔분별위91%、95%、84%화92%(공황4),이첨가과립전료대담린적거제몰유현저영향.쌍중호양-결양교체배경강화료공예대린적거제.첨가과립전료비간헐폭기경능유효연완막오염,동시개변료막오염적형성과정,막내부오염물함량현저증다,여니병층상비,다당성위료막오염적주요인소,불회대막조건본신구성위해,증강료MBR반응기적실제응용성능.
In order to reduce energy consumption and delay the process of membrane fouling, the process of anaerobic baffled reactor (ABR) -membrane bioreactor (MBR) was used to treat domestic sewage. The conditions of nitrogen and phosphorus removal and membrane fouling were optimized through intermittent aeration and particulate media in this study. The results show that the efficiencies of nitrogen and phosphorus removal were improved by increasing the intermittent aeration time. As mean while, the process achieved a high level of COD, NH4+-N, TN and TP removal, with the average removal efficiencies of 91%, 95%, 84% and 92% (run 4), respectively. And the added particulate media would not significantly affect the efficiencies of nitrogen and phosphorus removal. The double aerobic-anoxic alternating environment strengthened phosphorus removal of the process. In addition, the added particulate media could more effectively delay membrane fouling than intermittent aeration, while the formation process of membrane fouling was changed. The extracted amount of membrane fouling material significantly increased. Compared with cake layer, carbohydrate became the main factors of membrane fouling. However, it would not pose a hazard to membrane. Finally, the potential was enhanced for the practical application of MBR.