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OALib Journal期刊
ISSN: 2333-9721
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固定化微生物两级还原耦合络合吸收工艺脱除nox的动力学研究
, PP. 49-54
Keywords: 烟气脱氮,固定化微生物,两级还原,络合吸收,扩散？反应,动力学
Abstract:
分析了固定化微生物两级还原耦合络合吸收工艺脱除nox的动力学过程，建立了生物反应器内固定化微生物还原fe(ⅱ)edta？no和fe(ⅲ)edta的生化反应模型以及固定化生物小球的扩散？反应模型。分析结果表明：固定化反硝化菌还原fe(ⅱ)edta？no的最大反应速度γmax为6.97×10-6mmol/(m3？s-1)，半饱和常数km为0.0016mmol/m3；固定化铁还原菌还原fe(ⅲ)edta的最大反应速度γ′max为6.805×10-5mmol/(m3？s-1)，半饱和速率常数k′m为0.01373mmol/m3；fe(ⅱ)edta？no和fe(ⅲ)edta的微生物还原过程均由内扩散控制，后期设计运用中应着力提高小球内反应物的扩散速率。
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