微孔曝气充氧性能的影响因素研究  

Study on the influencing factors of oxygenation performance of microporous aeration

作　　者：胡鹏[1] 刘玲花[1] 吴雷祥[1] 方媛瑗 

机构地区：[1]中国水利水电科学研究院水环境研究所,北京100038

出　　处：《工业水处理》2015年第8期49-52,共4页Industrial Water Treatment

基　　金：国家科技支撑计划项目(2012BAJ21B03);水体污染控制与治理科技重大专项(2013ZX07104-004)

摘　　要：曝气量、孔径和水深是影响微孔曝气充氧性能的3个重要因素。通过试验研究了曝气量、孔径和水深对氧总传质系数、氧利用率及理论动力效率的影响,并通过曲线分析优化出最佳参数组合。结果表明,安装水深为2.0 m时采用200μm孔径的曝气器和0.5 m3/h的曝气量具有最佳的充氧性能。Aeration rate, pore diameter and water depth are the three important factors that affect the performance of microporous aeration. The effects of aeration rate, aperture and water depth on the total mass transfer coefficient of oxy- gen,oxygen availability and theoretical kinetic efficiency are studies and tested. Besides ,the most appropriate pa- rameter combination has been optimized through curves analysis. The results show that the best oxygenation perfor- mance is obtained, when the aerator whose aperture is 200 μm, water depth 2.0 m and aeration rate 0.5 m^3/h.

关 键 词：微孔曝气 氧总传质系数 孔径 理论动力效率 

分 类 号：X703.1[环境科学与工程—环境工程]