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改良型一体化氧化沟工艺在低碳源条件下脱氮除磷

Keywords: 改良型一体化氧化沟工艺,低碳源,脱氮除磷,,

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Abstract:

针对在低碳源条件下脱氮除磷效果不佳,将倒置A2+/O工艺的思想运用于一体化氧化沟工艺中,构建一种新型污水处理系统,即改良型一体化氧化沟工艺。实验考查了系统在低碳源条件下的脱氮除磷能力;结果表明:当缺氧区进水分配比r=0.8,泥龄SRT=10d,好氧区水力停留时间HRT=12h时,该系统对COD、NH+4-N和TP的去除率分别达70.8%、89.3%和72.1%,出水NO-x-N为1.65mg/L,同时处理效果稳定,出水水质达到了《城镇污水处理厂污染物排放标准》(GB18918-2002)一级B标准的要求。

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