垃圾渗滤液中难降解有机物与氮同步脱除试验研究

Chen ZHAO,Beidou XI,Tao MA,Lieyu ZHANG,Liangliang HUANG

Journal of Environmental Engineering Technology（2018）

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Abstract

通过UASB模拟系统研究了不同环境因子对垃圾渗滤液中难降解有机物及氮同步去除效果的影响,分析了UASB模拟系统利用垃圾渗滤液中腐殖质类物质为碳源,对渗滤液中难降解有机物及氮的去除效果.结果表明,pH为7.9 ~8.4,ORP在-200~ -100和-300~ -200 mV范围内COD去除率分别为92.05%和95.08%,总氮去除率分别为62.03%和66.73%.三维荧光光谱分析表明,渗滤液中腐殖质类物质荧光强度呈降低趋势,表明垃圾渗滤液中的反硝化菌可利用部分垃圾渗滤液中难降解有机物进行反硝化.COD与总氮去除的最佳ORP范围为-300~ -100 mV,实现了垃圾渗滤液中有机物与氮的同步脱除.

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