填料投加强化AnMBR性能研究进展  

Review on the performance enhancement of an anaerobic membrane bioreactor by adding filters

作　　者：夏天[1] 高心怡[1] 徐向阳[1,2] 朱亮[1,2] 

机构地区：[1]浙江大学环境工程系,杭州310058 [2]浙江省水体污染控制与环境安全技术重点实验室,杭州310058

出　　处：《应用与环境生物学报》2017年第2期392-399,共8页Chinese Journal of Applied and Environmental Biology

基　　金：国家科技支撑计划项目(2013BAC16B04)资助~~

摘　　要：厌氧膜生物反应器(An MBR)是厌氧生物反应器和膜过滤技术的结合,具有高效降解有机物、能源回收利用等特点,逐渐应用于高浓度有机废水处理领域,但其稳定性较差、膜污染严重等问题制约其工业化应用.本文介绍沸石、活性炭、硬硅钙纤维粒子等不同类型填料投加强化An MBR污染物去除效率、缩短反应器启动时间、提升甲烷产量等的工艺性能研究,分析填料强化工艺电化学作用、吸附作用、强化厌氧污泥颗粒化等的可能机制,指出填料可有效提升工艺性能;综述An MBR工艺膜垢组成及膜污染形成过程,探讨膜材质、操作条件、微生物代谢产物、污泥浓度及菌群结构、废水水质等膜污染的影响因素,在此基础上分析填料投加减缓膜污染机制,以期进一步控制膜污染、延长膜寿命.今后应优选开发经济、高效的新型生物填料及新型组合填料,推广其工业化应用,并从厌氧菌群调控与膜污染控制角度构建高效稳定的An MBR工艺技术体系.An anaerobic membrane bioreactor （AnMBR） has dual advantages of anaerobic biological treatment and membrane separation, which combines anaerobic bioreactor and membrane filtration technologies. AnMBR has been applied gradually in the field of high-organic-concentration wastewater treatment with excellent performance for pollutant removal and energy recovery. However, unstable operation and serious membrane fouling have limited its industrial application. It has the advantages of high organic loading, efficient biomass retention, and high quality of effluents. The process has the potential in wastewater treatment and resource utilization, which has significant technical advantages in enhancing resource recycling and industrial wastewater treatment. However, the development of AnMBR has almost stopped because of the issues of effluent instability, membrane pollution, and low energy recovery efficiency. In this study, the enhancement of AnMBR system was illustrated, which included contaminant removal efficiency, shortening the reactor start-up time, and improving methane production, by adding different filters such as zeolites, activated carbon, and xonotlite fiber particles. The related mechanisms after the addition of filters for electro-chemical reaction, adsorption, and strengthening the process of sludge granulation were revealed, which indicated that these filters could effectively enhance the performance of an AnMBR system. The composition and formation of membrane foulants in AnMBR were reviewed, and the function of mitigating membrane fouling by adding filters based on the process and the main factors of membrane fouling in AnMBR were analyzed. Investigating the influencing factors of membrane materials, operating conditions, microbial metabolites, sludge concentration and microbial community, and wastewater characteristics might allow further controlling of membrane fouling and extending membrane life. In the future, developing economic and efficient new bio-fillers and new combination filters, promoti

关 键 词：废水生物处理 厌氧膜生物反应器 填料 强化工艺性能 膜污染 

分 类 号：X703[环境科学与工程—环境工程]