城市污水厂 Leopold反硝化滤池的深度处理中试试验

摘要

该文采用 Leopold反硝化滤池进行了城市污水厂二级出水的深度处理中试试验。试验结果表明，Leopold反硝化滤池系统能够取得较好的脱氮效果。当用于城市生活污水厂二沉池出水的深度脱氮时，滤池出水总氮浓度为1．08～4．98 mg／ L，平均为3．01 mg／ L，滤池对总氮的平均去除率为82．37％。当滤池用于同步脱氮除磷时，滤池出水总氮浓度变化范围为0．93～4．72 mg／ L，平均为1．98 mg／ L，总氮平均去除率为88．74％。滤池出水总磷浓度为0．06～1．24 mg／ L，平均为0．26 mg／ L，总磷平均去除率为79．24％。%Pilot scale test on secondary effluent from municipal wastewater treatment plant was carried out to study characteristics of Leopold denitrification filter. The results show that,Leopold denitrification filter can achieve good denitrification effect. When the filter is used in enhanced denitrification,filter effluent total nitrogen concentration is 1. 08 ~ 4. 98 mg/ L,with an average of 3. 01 mg/ L,the average nitrogen removal rate was 82. 37% . When the filter is used to synchronize nitrogen and phosphorus removal,effluent total nitrogen concentration is 0. 93 ~ 4. 72 mg/ L,with an average of 1. 98 mg/ L,the average nitrogen removal rate is 88. 74% . Effluent total phosphorus concentration is 0. 06 ~ 1. 24 mg/ L,with an average of 0. 26 mg/ L,the average phosphorus removal rate is 79. 24% .