IAL-CHS反应器的同步硝化反硝化研究

Study on Simultaneous Nitrification and Denitrification in IAL-CHS Bioreactor

研究了IAL-CHS反应器的同步硝化反硝化效果和实现机理。结果表明，在水力负荷为1．0m^3／（m^2·h）、DO浓度为2．0～3．5mg／L、水温为19．4～20．5℃以及进水COD为165．1～220．1mg／L、NH3-N为69．65～85．86mg／L的条件下，IAL-CHS反应器取得了良好的脱氮效果。通过分析含氮化合物的浓度变化发现，在好氧条件下反应器内发生了明显的同步硝化反硝化现象，经分析认为IAL-CHS反应器特殊的结构和运行方式是其能够进行同步硝化反硝化的主要原因。

A study was made on the efficiency and mechanism of simultaneous nitrification and denitrification （SND） in IAL- CHS bioreactor. The resuh shows that good effects of nitrogen removal can be achieved with the hydraulic load of 1.0 m^3/（ m^2 · h）, DO of 2.0- 3.5 mg/L, water temperature of 19.4 - 20.5℃, influent COD of 165.1 - 220.1 mg/L and NH3 - N of 69.65 - 85.86 mg/L. Furthermore, the changes of nitrogen-compounds were analyzed. Evident SND is found in IAL - CHS bioreactor. After the analysis of its mechanism, it is believed that the structural feature and operational mode are the principal causes for SND occurring in IAL- CHS bioreactor.