铁离子与其他金属离子间共效应对生化反应处理效果的影响研究

摘要

By using SBR reactor filled with sponge, this paper takes civil sewage as research object to study the influence of metal ions include Mg2+, Mn2+, Cu2+, Zn2+and Al3+on the removal efficiencies of COD, NH3 -N and TP.The results show that low density of Mg2+, Al3+can accelerate the removal efficiency of COD, NH3 -N, TP.There is a time-density accumula-tive effect during the process of removing NH3 -N from the sewage included Zn2+and removing TP from the sewage included Mn2+; High density of Mn2+can restrain the reactor’s removal efficiency on COD while can accelerate the removal efficiency on TP; Cu2+can restrain the reactor’s removal efficiency on COD, NH3 -N, especially TP.%采用海绵铁填充的SBR反应器，以模拟生活污水为处理对象，通过实验研究外加Mg2＋、Mn2＋、Cu2＋、Zn2＋和Al3＋等金属离子对生物海绵铁体系去除污水中COD、NH3－N、TP等效果的影响。结果表明，低浓度的Mg2＋、Al3＋对生物海绵铁体系对COD、NH3－N、TP的去除效率一直保持在一个稳定的、较良好的水平；Zn2＋对体系去除NH3－N及低浓度的Mn2＋对体系对TP的去除都存在时间－浓度累积效应；Cu2＋对生物海绵铁体系对COD、NH3－N特别是对TP的去除有很强的抑制作用。