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多段A/O工艺流量及体积分配方法与优化控制策略

Keywords: 污水,脱氮,优化,分段进水,A/O,流量分配,缺氧/好氧体积

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Abstract:

分段进水A/O生物脱氮工艺中,为充分利用污水中的碳源及系统各段的硝化容量。且有效地应对进水扰动,需进行合理的进水流量分配和缺氧/好氧体积分配。针对分段进水A/O工艺的结构和运行特点,对分段进水工艺系统的流量分配方法和体积分配方法进行理论分析,并对实际运行优化方法进行讨论.对于系统的流量分配,提出以进水ρ(C)/ρ(N)作为控制参数,并分别对碳源充足、碳源恰好合适和碳源不足3种情况进行讨论,同时给出每种情况下的运行优化方法;对于体积分配,分析缺氧/好氧体积比对系统硝化容量及其对进水中COD利用程度的影响,并对不同负荷下缺氧/好氧体积优化进行了分析.

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