连续流短程同步硝化反硝化启动及影响因素研究  

Startup and influencing factors of continuous flow in shortcut simultaneous nitrification-denitrification reaction

作　　者：傅金祥[1] 张羽[1] 杨洪旭[1] 刘守勇[1] 

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《供水技术》2011年第1期23-26,共4页Water Technology

摘　　要：在温度为30℃时,通过控制生物倍增反应器中溶解氧为0.3～0.5 mg/L、pH值为7.5～8.5,实现了连续流短程同步硝化反硝化的启动,并研究了低温和溶解氧对连续流短程同步硝化反硝化的影响。结果表明:采用阶段降温的方法,经过42天的培养,连续流短程同步硝化反硝化在10℃稳定运行;相同溶解氧下,温度在15～22℃变化时,总氮去除率差别不大,且短程同步硝化反硝化的最佳溶解氧为0.4 mg/L。It was successfully achieved the startup of the continuous flow in shortcut simultaneous nitrification-denitrification by controlling low concentration of DO at 0.3 to 0.5 mg/L and pH at 7.5 to 8.5 in bio-doubling reactor at 30 ℃ during the experiment. And the influence of low temperature and DO on shortcut nitrification-denitrification was discussed. The results showed that the stable operation of continuous flow in shortcut simultaneous nitrification-denitrification reaction had been successfully achieved at 10℃ after stepped decline of temperature and 42 days cultivation. for the removal of total nitrogen under variation of temperature from 15 to 22℃ The optimum concentration of DO was 0.4 mg/L in the shortcut simultaneous reaction. Little difference occurred when the DO was stable. nitrification-denitrification

关 键 词：短程同步硝化反硝化 启动 低温 溶解氧 

分 类 号：X703.1[环境科学与工程—环境工程]