Removal of Organic Pollutants in Landfill Leachate by Ozone Ozidation-UBAF
After secondary biochemical treatment, the COD, BOD and NH3-N of the landfill leachate can not reach the leachate emission standard. Using ozone oxidation-upflow biological aerated filter (UBAF) for advanced treatment, the COD’s removal ratio could be increased accordingly with the addition and reaction time of ozone in a certain range. With the influent flow velocity of 160 cm·s-1, the removal ratio of UBAF was optimal. Under the optimal conditions, in 12 days, treated by ozone-UBAF, the removal ratio of leachate’s COD and NH3-N was 68.9-74.6 % and 59.6-66.6 % respectively. Influent leachate mainly contains 35 kinds of organic pollutants. After treated by ozone oxidation-UBAF, 16 organic pollutants in the leachate can be completely removed, the removal ratios of 7 kinds of organic pollutants were 77-96 % and the removal ratios of the other 7 kinds of organic pollutants were 6-43 %. However, 5 kinds of organic pollutants’ concentration were increased instead of decreased. 3 kinds of organic pollutants were newly generated due to the chemical reaction in the process of the ozone oxidation.
Ozone ozidation upflow biological aerated filter (UBAF) landfill leachate organic pollutants advanced treatment
ZHANG Chunhui ZHU Shuquan HE Linna WU Ping
School of Chemical & Environmental Engineering,China University of Mining & Technology (Beijing),Bei School of Chemical & Environmental Engineering,China University of Mining & Technology (Beijing),Bei Beijing Sinorichen Environmental Protection Co.,Ltd,Beijing 100081,China
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
1349-1353
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）