一种新型SAnMBR污水处理工艺性能试验研究
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摘要
文章采用一体化浸没式厌氧膜生物反应器(SAnMBR)进行低浓度生活污水的COD处理及回收能源气体的实验研究。SAnMBR在中温((35±1)℃)、水力停留时间为22 h的条件下成功启动,在水力停留时间为6～15 h、有机负荷为0.87～2.60 kg/(m~3·d)(以COD计)的条件下稳定运行。结果表明,在稳定运行阶段COD去除率平均值为81.42%,其中厌氧单元对COD去除率的贡献值为75%,膜单元对COD去除率的贡献值为25%,CH_4的日产生量随有机负荷的增加呈增长趋势。整体来看,SAnMBR在中温条件下处理低浓度生活污水具有可行性及能源化和资源化的潜力。
An integrated immersion anaerobic membrane bioreactor(submerged anaerobic membrane bioreactor, SAnMBR)was used to conduct an experimental study on the COD treatment of municipal sewage and the recovery of energy gas.SAnMBR is successfully started under the condition of medium temperature((35±1) ℃) and hydraulic retention time 22 h,and it operates steadily for 99 d under the condition of the hydraulic retention time of 6～15 h and the organic load of 0.87～2.60 kg/(m~3·d). The results show that the average COD removal rate is 81.42% in the stable operation stage, in which the contribution of anaerobic unit to COD removal rate is 75%, while the contribution of membrane unit to COD removal rate is 25%, and the daily yield of CH_4 increased with the increase of organic loading. On the whole, the possibility of SAnMBR treatment of low-concentration domestic sewage under medium temperature conditions is feasible and energy-saving and resourceable.
An integrated immersion anaerobic membrane bioreactor(submerged anaerobic membrane bioreactor, SAnMBR)was used to conduct an experimental study on the COD treatment of municipal sewage and the recovery of energy gas.SAnMBR is successfully started under the condition of medium temperature((35±1) ℃) and hydraulic retention time 22 h,and it operates steadily for 99 d under the condition of the hydraulic retention time of 6～15 h and the organic load of 0.87～2.60 kg/(m~3·d). The results show that the average COD removal rate is 81.42% in the stable operation stage, in which the contribution of anaerobic unit to COD removal rate is 75%, while the contribution of membrane unit to COD removal rate is 25%, and the daily yield of CH_4 increased with the increase of organic loading. On the whole, the possibility of SAnMBR treatment of low-concentration domestic sewage under medium temperature conditions is feasible and energy-saving and resourceable.
引文
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[7]Watanabe R,Nie Y,Takahashi S,et al.Efficient performance and the microbial community changes of submerged anaerobic membrane bioreactor in treatment of sewage containing cellulose suspended solid at 25℃[J].Bioresource Technology,2016,216:128-134.
[8]Santos F S,Ricci B C,Neta L S F,et al.Sugarcane vinasse treatment by two-stage anaerobic membrane bioreactor:effect of hydraulic retention time on changes in efficiency,biogas production and membrane fouling[J].Bioresour&Technology,2017,245:342-350.
[9]王欣然.厌氧膜生物反应器(AnMBR)处理生活污水的运行效能研究[D].哈尔滨:哈尔滨工业大学,2017.Wang Xinran.Efficiency of Anaerobic Membrane Bioreactor(AnMBR)Treating for Sewage[D].Harbin:Harbin Institute of Technology,2017.
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[2]Zhang QY,Guan HT,David C,et al.Optimal biogas sparging strategy,and the correlation between sludge and fouling layer properties in a submerged anaerobic membrane bioreactor(SAnMBR)[J].Chemical Engineering Journal,2017,319(1):248-257.
[3]Hu YS,Yang Y,Yu SC,et al.Psychrophilic anaerobic dynamic membrane bioreactor for domestic wastewater treatment:effects of organic loading and sludge recycling[J].Bioresource Technology,2018,270:62-69.
[4]Chen C,Guo WS,Ngo HH,et al.Impact of reactor configurations on the performance of a granular anaerobic membrane bioreactor for municipal wastewater treatment[J].International Biodeterioration&Biodegradation,2017,121:131-138.
[5]荆延龙,李菲菲,朱佳迪,等.室温下厌氧膜生物反应器处理生活污水的运行特性[J].环境工程学报,2017(10):5393-5399.Jing Yanlong,Li Feifei,Zhu Jiadi,et al.Operating characteristics of anaerobic membrane bioreactor for domestic wastewater treatment under ambient temperature[J].Chinese Journal of Environmental Engineering,2017(10):5393-5399.
[6]Nie Y,Chen R,Tian X,et al.Impact of water characteristics on the bioenergy recovery from sewage treatment by anaerobic membrane bioreactor via a comprehensive study on the response of microbial community and methanogenic activity[J].Energy,2017,139:459-467.
[7]Watanabe R,Nie Y,Takahashi S,et al.Efficient performance and the microbial community changes of submerged anaerobic membrane bioreactor in treatment of sewage containing cellulose suspended solid at 25℃[J].Bioresource Technology,2016,216:128-134.
[8]Santos F S,Ricci B C,Neta L S F,et al.Sugarcane vinasse treatment by two-stage anaerobic membrane bioreactor:effect of hydraulic retention time on changes in efficiency,biogas production and membrane fouling[J].Bioresour&Technology,2017,245:342-350.
[9]王欣然.厌氧膜生物反应器(AnMBR)处理生活污水的运行效能研究[D].哈尔滨:哈尔滨工业大学,2017.Wang Xinran.Efficiency of Anaerobic Membrane Bioreactor(AnMBR)Treating for Sewage[D].Harbin:Harbin Institute of Technology,2017.
[10]Galib M,Elbeshbishy E,Reid R,et al.Energy-positive food wastewater treatment using an anaerobic membrane bioreactor(AnMBR)[J].Journal of Environmental Management,2016,182(1):477-485.