环境工程学报2024，Vol.18Issue(2)：309-316,8.DOI:10.12030/j.cjee.202305031
膜强化污水病毒去除效能:厌氧和好氧膜生物反应器的对比
Study on membrane-enhanced virus removal efficiency in sewage:A comparison between anaerobic and aerobic membrane bioreactors
摘要
Abstract
Sewage treatment systems,as the main receiver of human domestic sewage,are important reservoirs of human enteric viruses,and also important pathways for enteric viruses to enter the water environment.Membrane bioreactors can enhance the reduction of viruses in sewage while ensuring stable effluent quality.However,currently the researches regarding the differences in the efficacy and mechanisms of virus removal between aerobic(AeMBR)and anaerobic(AnMBR)membrane bioreactors are relatively limited.Based on this,the removal efficiency of viruses from sewage was compared between AeMBR and AnMBR under the same operating conditions,and the differences in virus adsorption by sludge,virus inactivation in sludge mixture,and membrane fouling affecting virus interception were also explored.The results showed that both AeMBR and AnMBR achieved a virus removal efficiency of 3 log in sewage,while their removal mechanisms were different.The virus removal rate of AeMBR rapidly increased to 2 log at the beginning of reactor operation,while the virus removal rate of AnMBR increased with the intensification of membrane fouling,and was significantly correlated with TMP(r=0.81,P＜0.05).The virus adsorption capacity of anaerobic sludge was higher than that of aerobic sludge,while the inactivation rate of viruses in aerobic sludge mixed liquor was higher than that in anaerobic sludge mixed liquor.The cake layer was the main contributor to the virus interception among the membrane fouling components of the membrane bioreactor.Taking the unit membrane resistance as the calculation basis for virus retention efficiency,among the membrane pollution components of AeMBR,the unit membrane resistance of irreversible fouling and the original membrane accounted for the highest virus retention efficiency.In AnMBR,the unit membrane resistance of organic fouling in the pore channels of membrane pollution contributed most to the virus retention efficiency.关键词
病毒去除/膜生物反应器/模式病毒/MS2Key words
virus removal/membrane bioreactor/surrogate viruses/MS2分类
资源环境引用本文复制引用
张杰,张金帆,陈荣..膜强化污水病毒去除效能:厌氧和好氧膜生物反应器的对比[J].环境工程学报,2024,18(2):309-316,8.基金项目
陕西省国际科技合作计划项目(2023-GHZD-27) （2023-GHZD-27）
国家重点研发计划(2017YFE0127300) （2017YFE0127300）
陕西省杰出青年科学基金项目(2022JC-31) （2022JC-31）
