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SBR脱氮系统污泥对磷的去除研究

Keywords: SBR,生物脱氮,生物强化除磷,聚磷菌

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Abstract:

为了研究缺氧(75min)好氧(294min)交替运行的SBR系统中除磷的原因,采用静态实验,对比了不同碳源、水质及运行环境下对磷的去除情况。实验结果表明,该SBR脱氮系统中的好氧段磷的减少是生物去除的结果。当供给碳源为丙酸乙酸混合物(摩尔比为2∶1)、葡萄糖、淀粉或蛋白胨时,污泥都可将磷去除,去除效率依次降低;COD/NO-3-N为8.77∶1(400mg/L∶45.6mg/L)时除磷效果明显好于5.41∶1(400mg/L∶73.9mg/L

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