Study on the oxygenation capacity and energy efficiency of aeration tank using cellular filler

摘要

The first stage test on clean water aerating confirmed that mass transfer efficiency of oxygen transfer in aeration process was significantly enhanced through adding cellular standpipe filler into the gas-water two-phase system;and that the smaller diameter in a certain range of the filter was more effective.The follow-up sewage treatment experiment in sequencing batch operation further demonstrated that the biological treatment efficiency was improved,the processing time was shortened and the smaller diameter in a certain range of filler was more significantly efficient,by adding the cellular standpipe filler packed into aeration tank.The results revealed that packing small-diameter of cellular standpipe filler into aeration tank was practical for increasing oxygenation capacity,thereby for improving mass transfer efficiency as well as for saving energy.