曝气量及污泥含量对生物膜-活性污泥工艺充氧性能的影响  

Influence of Air Flow Rate and Sludge Content on Oxygenation Performance of Hybrid Biofilm-activated Sludge Process

作　　者：尹训飞 马雄威[2,3] 魏延苓 齐鲁[1] 王洪臣[1] 任争光[1] 

机构地区：[1]中国人民大学环境学院,100872 [2]北京市可持续发展促进会 [3]清华大学建筑节能研究中心,北京100084

出　　处：《水处理技术》2016年第3期108-110,115,共4页Technology of Water Treatment

基　　金：国家自然科学基金(51408601)

摘　　要：在小试条件下,以氧利用率为评价指标,研究了不同曝气量及不同污泥含量下生物膜-活性污泥工艺氧传质效率的变化规律,并考察了污染物的去除情况。结果表明,当曝气体积流量为60~100 L/h时,生物膜-活性污泥工艺状态下氧传质效率随着曝气量的增大而增大,且较生物膜工艺明显提高;当污泥的质量浓度分别为1、2、3 g/L时,随着污泥含量的增大,生物膜-活性污泥工艺状态下氧传质效率先增大后趋于稳定;由于生物量及氧传质效率的提高,因此生物膜-活性污泥工艺系统对COD的去除效果明显优于生物膜系统,且对NH_3-N的去除效果较好。Based on the laboratory test the rules of oxygenation performance with air flow rate and sludge content on hybrid biofilm-activated sludge process were studied, using oxygen transfer efficiency as evaluation index. At meanwhile the removal of pollutant was evaluated. The results showed that compared to biological membrane system, the oxygen transfer efficiency of hybrid biofilm-activated sludge process increased with the increasing of air volume flow rate from 60 L/h to 100 L/h; the oxygen transfer efficiency of hybrid biofilm-activated sludge process firstly increased, then tended to be constant with the increasing of sludge mass content of 1, 2, 3 g/L. The removal of COD of hybrid biofilm-activated sludge process had a huge advantage over biological membrane system, the similar result was also found for NH3-N.

关 键 词：曝气量 污泥含量 COD NH_3-N 氧传质效率 

分 类 号：X703.1[环境科学与工程—环境工程]