Ecological Variation of High Activated Bacteria on Bioaugmentation activated carbon
Plant study on the ecological variation characters on bioaugmentation activated carbon was conducted, and the results show that when the operation time does not exceed 72h in every backwashing cycle, bacteria on activated carbon immobilize firmly and the bacteria amount keeps relatively steady with (4～5)×108CFU/(gCarbon) in upper part and (2～3)×108CFU/(gCarbon) in lower part. But the bacteria activity declines slowly along with the operation time. The SOUR of the upper part declines from 1.1×103mgO2/(cm3·C·h) to 0.8×103mgO2/(cm3·C·h) and the SOUR of the lower part declines from 0.75×103mgO2/(cm3·C·h) to 0.6×103mgO2/(cm3·C·h). The causation is mainly that the aboriginal bacteria rush into the process system continuously in little amount and engender certain impact on the niche of the high-activated bacteria. The high-activated bacteria distributing by monolayer and flocculently on the surface of activated carbon, and then they exist greatly ground holes and crack on the surface of activated carbon, forming countless active centers for biology decomposing.
bioaugmentation activated carbon high-activated bacteria aboriginal bacteria bacteria activity
Wang Guangzhi Li Weiguang Huang Likun
School of Municipal and Environment Engineering Harbin Institute of Technology Harbin, China
国际会议
上海
英文
3540-3543
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）