低浓度废水的厌氧处理：单级和多级厌氧流化床膜生物反应器的比较。
Anaerobic treatment of low-strength wastewater: a comparison between single and staged anaerobic fluidized bed membrane bioreactors.
机构信息
Department of Environmental Engineering, Inha University, Namgu, Inharo 100, Incheon, Republic of Korea.
Department of Environmental Engineering, Inha University, Namgu, Inharo 100, Incheon, Republic of Korea.
出版信息
Bioresour Technol. 2014 Aug;165:75-80. doi: 10.1016/j.biortech.2014.02.065. Epub 2014 Feb 27.
Performance of a single anaerobic fluidized membrane bioreactor (AFMBR) was compared with that of a staged anaerobic fluidized membrane bioreactor system (SAF-MBR) that consisted of an anaerobic fluidized bed bioreactor (AFBR) followed by an AFMBR. Both systems were fed with an equal COD mixture (200mg/L) of acetate and propionate at 25°C. COD removals of 93-96% were obtained by both systems, independent of the hydraulic retention times (HRT) of 2-4h. Over more than 200d of continuous operation, trans-membrane pressure (TMP) in both systems was less than 0.2bar without significant membrane fouling as a result of the scouring of membrane surfaces by the moving granular activated carbon particles. Results of bulk liquid suspended solids, extracellular polymeric substances (EPS), and soluble microbial products (SMP) analyses also revealed no significant differences between the two systems, indicating the single AFMBR is an effective alternative to the SAF-MBR system.
单级厌氧膜生物反应器（AFMBR）的性能与由厌氧流化床生物反应器（AFBR）和 AFMBR 组成的两级厌氧膜生物反应器系统（SAF-MBR）进行了比较。两种系统均以 25°C 下的乙酸盐和丙酸盐等比例 COD 混合物（200mg/L）为进料。两种系统的 COD 去除率均达到 93-96%，与水力停留时间（HRT）为 2-4h 无关。在 200 多天的连续运行中，两种系统的跨膜压力（TMP）均小于 0.2bar，且由于移动颗粒活性炭颗粒对膜表面的冲刷作用，没有出现明显的膜污染。悬浮固体总量、胞外聚合物物质（EPS）和可溶性微生物产物（SMP）分析的结果也表明，两种系统之间没有显著差异，这表明单级 AFMBR 是 SAF-MBR 系统的有效替代方案。
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