To identify wastewater treatment performance and evaluate membrane’s filtration behavior, the artificial azo dye methyl orange wastewater was treated via anaerobic baffled membrane bioreactor (ABMBR). After 4 cells of anaerobic treatment, the methyl orange was discolored completely with hydraulic retention time (HRT) of 17.20 h or 15.24 h, although the removal of total organic carbon (TOC) was not obvious. There was about 70% of TOC could be removed after MBR treatment even with shorter HRT. There were 7 kinds of identified intermediates from anaerobic and aerobic treatment processes, which indicated that there were two degradation pathways including demethylation and desulfonation. The operation time of this system lasted for 110 days under stable condition with only 2 times of membrane cleaning, because only 0.19–0.32 g_MLSS/m² of filter cake was accumulated on membrane surface. The zeta potential of solid surface analysis was used to identify membrane inorganic fouling successfully in this study because the zeta potential was changed regularly with organic and inorganic foulants removal processes.

为了确定废水处理性能并评估膜的过滤性能，通过厌氧折流板膜生物反应器（ABMBR）处理了人工偶氮染料甲基橙废水。经过4个细胞的厌氧处理后，尽管总有机碳（TOC）的去除并不明显，但甲基橙的水力停留时间（HRT）为17.20 h或15.24 h时，甲基橙完全变色。即使使用更短的HRT，MBR治疗后仍有约70％的TOC可以去除。从厌氧和好氧处理过程中鉴定出的中间体有7种，这表明存在两种降解途径，包括脱甲基和脱磺化。该系统在稳定条件下的运行时间可持续110天，仅进行了两次膜清洁，因为只有0.19–0.32 g滤饼的_MLSS / m ²累积在膜表面上。固体表面分析的zeta电位在本研究中成功地用于鉴定膜的无机结垢，因为zeta电位随着有机和无机污垢去除过程的变化而有规律地变化。