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

Influence of Total Effect between Iron and Other Metal Ions on Biochemical Treatment

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Mg^(2+)、Mn^(2+)、Cu^(2+)、Zn^(2+)和Al^(3+)等金属离子对生物海绵铁体系去除污水中COD、NH_3-N、TP等效果的影响。结果表明,低浓度的Mg^(2+)、Al^(3+)对生物海绵铁体系对COD、NH_3-N、TP的去除效率一直保持在一个稳定的、较良好的水平;Zn^(2+)对体系去除NH_3-N及低浓度的Mn^(2+)对体系对TP的去除都存在时间-浓度累积效应;Cu^(2+)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。

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 accumulative effect during the process of removing NH＋3- 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,NH＋3- N,especially TP.