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EM生物膜强化处理垃圾渗滤液

Keywords: EM,渗滤液,生物膜,培养特征

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Abstract:

将有效微生物菌剂(EM)接种于生物接触氧化反应器形成强化生物膜,并通过EM对废水中营养物的摄取情况分析EM的生长繁殖状况,分生物膜启动和运行2个阶段对EM生物膜的处理效果及运行机理进行了研究。结果表明,EM生物膜启动时间短,接种后第3天有淡黄色粘膜出现,反应进行至12d填料上已经形成较为完善的生物膜;EM生物膜在启动阶段对渗滤液废水有较好的处理效果,废水的恶臭问题得到显著改善,色度也明显降低;启动阶段EM的培养特征与单种细菌的分批培养特征类似,依次出现缓速期、对数期和静止期;EM生物膜运行阶段状况稳定,至最佳水力停留时间48h,典型污染物指标COD、NH3-N的去除率分别达到71.25%和86.16%,能有效地处理垃圾渗滤液。

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