采用两段式厌氧流态化膜生物反应器去除城市污水中的药物和有机物。
Removal of pharmaceuticals and organic matter from municipal wastewater using two-stage anaerobic fluidized membrane bioreactor.
机构信息
Institute of Environmental Engineering, National Chiao Tung University, 1001 University Road, Hsinchu City 30010, Taiwan.
Graduate Institute of Environmental Engineering, National Taiwan University, Taiwan.
出版信息
Bioresour Technol. 2014 Aug;165:42-9. doi: 10.1016/j.biortech.2014.03.054. Epub 2014 Mar 21.
The aim of present study was to treat municipal wastewater in two-stage anaerobic fluidized membrane bioreactor (AFMBR) (anaerobic fluidized bed reactor (AFBR) followed by AFMBR) using granular activated carbon (GAC) as carrier medium in both stages. Approximately 95% COD removal efficiency could be obtained when the two-stage AFMBR was operated at total HRT of 5h (2h for AFBR and 3h for AFMBR) and influent COD concentration of 250mg/L. About 67% COD and 99% TSS removal efficiency could be achieved by the system treating the effluent from primary clarifier of municipal wastewater treatment plant, at HRT of 1.28h and OLR of 5.65kg COD/m(3)d. The system could also effectively remove twenty detected pharmaceuticals in raw wastewaters with removal efficiency in the range of 86-100% except for diclofenac (78%). No other membrane fouling control was required except scouring effect of GAC for flux of 16LMH.
本研究旨在采用两段式厌氧流动膜生物反应器（AFMBR）（厌氧流化床反应器（AFBR）后接 AFMBR），以颗粒活性炭（GAC）作为两段式反应器中的载体介质来处理城市污水。当两段式 AFMBR 在总水力停留时间为 5h（AFBR 为 2h，AFMBR 为 3h）且进水 COD 浓度为 250mg/L 时，可获得约 95%的 COD 去除效率。该系统在水力停留时间为 1.28h 和 OLR 为 5.65kg COD/m(3)d 的情况下，处理城市污水处理厂初沉池出水，可实现约 67%的 COD 和 99%的 TSS 去除效率。该系统还可以有效去除原废水中的二十种检测到的药物，除了双氯芬酸（78%）外，去除效率在 86-100%范围内。除了 GAC 的冲刷作用可使通量达到 16LMH 外，不需要其他任何膜污染控制措施。
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