设计了可正/反运行的外置式膜-生物反应器(RMBR),研究了RMBR处理污水的工艺条件,讨论了膜面流速、添加粉末活性炭(PAC)等因素对临界膜通量、CODcr脱除率的影响.结果表明:在进水水质CODcr为312～584 mg/L,NH3-N为16～40 mg/L时,RMBR的出水水质达到CODcr＜15 mg/L(脱除率＞96.5%),NHH3-N＜1.53 mg/L(平均去除率＞80%),浊度＜0.17 NTU;添加PAC后出水水质CODcr＜4.22 mg/L,临界循环比降低了10%～20%;对于已污染的膜,水反冲洗、碱浸泡后水反冲洗、碱浸泡+酸浸泡后水反冲洗可使膜通量恢复至新膜的47%,83%,94%;组件反置运行可使膜通量恢复约10%.
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