文献类型：期刊文献

中文题名：溶解氧对膜生物反应器处理高氨氮废水的影响

英文题名：Effect of DO on High Concentration of Ammonia Nitrogen Wastewater Treatment in Membrane Bioreactor

作者：黄志金[1];黄光团[1];史春琼[1];季景瑜[1]

机构：[1]华东理工大学资源与环境工程学院,上海200237

年份：2010

卷号：33

期号：1

起止页码：138

中文期刊名：环境科学与技术

外文期刊名：Environmental Science & Technology

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：上海市重点学科建设项目(B506)

语种：中文

中文关键词：膜生物反应器;溶解氧;氨氮;同步硝化反硝化

外文关键词：membrane bioreactor; DO; ammonia nitrogen; simultaneous nitrification and denitrification

摘要：采用膜生物反应器(MBR)处理高氨氮有机废水,探讨了溶解氧(DO)对有机物、氨氮、总氮等去除效果的影响。当进水COD1500mg/L,NH4+-N150mg/L,TP为15mg/L,pH7.5～8.0,MLSS控制在6000～7000mg/L,DO在0.5～4mg/L时对COD的去除效果没有明显影响,都可高达95%;在DO为4.0和2.0mg/L时对NH4+-N的去除率都很高,最高可达99.17%,在DO为0.5mg/L时明显降低,最低降至48.30%。在DO2.0mg/L时,取得了较好的同步硝化反硝化效果,COD、NH4+-N、TN去除率分别高达97%、97%、68%。MBR中硝化反应的比氨氮消耗速率与氨氮浓度成零级反应动力学,比氨氮硝化速率为0.0979/d,比常规处理系统中的污泥硝化活性高。
Membrane bioreactor （MBR） was used to treat high concentration of ammonia nitrogen wastewater. The effect of dissolved oxygen （DO） concentration on the removal of organic matter, ammonia nitrogen and total nitrogen was studied respectively. Results showed that at the condition of influent CODcr 1,500mg/L, NH4^＋-N 150mg/L, TP 15mg/L, pH 7.5-8.0 and MLSS 6,000-7,000mg/L, DO had no significant effect on the removal of CODcr, with the removal efficiency all up to 95% in the range of 0.5-4.0mg/L of DO. Removal efficiency of NH4^＋-N were excellent when DO was 4.0 and 2.0mg/L, with the highest removal rate up to 99.17%. The removal rate decreased to 48.30% when DO was 0.5mg/L. At the condition of DO 2.0mg/L, simultaneous nitrification and denitrification （SND） happened, with removal efficiency of CODcr, NH4^＋-N and TNup to 97%, 97% and 68% respectively： In MBR specific consumption rate of NH4^＋-N manifested zero-order reaction kinetic with respect to concentration of NH4^＋-N, with specific nitrifying rate of NH4^＋-N up to 0.0979/d. Nitrifying bacteria in MBR had stronger nitrifying activity than those in conventional activated sludge system.