Research on the microbiologic property of biological aerated filters biomembrane
The concentration of dissolved oxygen (DO) and organics in biological aerated filters (BAFs) changes with the height.Due to the different microbiologic property distributions in different heights,biomass and bioactivity also vary with the height.By monitoring biomembranes at different heights in a laboratory simulation reactor,we found that owing to the decrease of organic substance concentration,biomass decreased with the change of height;bioactivity showed V shaped changes with the height,and due to the influence of intercepted suspended substance,bioactivity in the middle and lower levels were the lowest.Observation on the biomembrane biofacies showed that biomembrane became thinner along with the flow direction,i.e.from 700μm to 100μm,and the colour became lighter.Biofacies changed from lower level to higher level,forming a complete biosystem.
biological aerated filters biomembrane component biomass bioactivity
Shan Qiu Fang Ma Lili Feng Yuan Chen Chong Tan
State Laboratory of Urban Water Resources and Environment,Harbin Institute of Technology,Harbin,China
国际会议
哈尔滨
英文
1394-1397
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）