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以剩余污泥水解酸化液为外加碳源的污水生物脱氮

Keywords: 剩余污泥,水解酸化液,碳源,低碳氮比污水,生物脱氮,曝气生物滤池

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Abstract:

为解决低碳氮比污水生物脱氮过程反硝化碳源不足的问题,利用剩余污泥水解酸化液为外加碳源,通过具有曝气段与非曝气段的一体化曝气生物滤池(BAF),研究低碳氮比污水生物脱氮的性能与工艺条件。实验结果表明,预处理后的水解酸化液VFAs为3134.9~5251.4mg/L、ThODVFAs/COD为59.87%~91.85%,适合作为生物脱氮的外加碳源;水解酸化液的投配量、进水TN浓度对系统生物脱氮效果的影响较大,气水比、曝气段与非曝气段比例对系统的硝化和反硝化性能有重要的影响;在温度为

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