Odor and VOCs removal in wastewater treatment plant by a two-stage biofilter
Biofiltration is one of the major treatment processes for odor and volatile organic compounds (VOCs) control. In this study, a two-stage biofilter was developed to treat odor and VOCs from sludge dewatering facility of a wastewater treatment plant (WWTP) in ShanDong province. The objectives were to evaluate the performance and effectiveness of the two-stage biofilter to treat odor and VOCs. The main compounds emitted from the VVWTP were sulfide hydrogen, ammonia and total volatile organic compounds containing acetone, acetic acid and toluene. Results indicated that the two-stage biofilter can remove the inlet odor and VOCs efficiently. Compounds with different characteristics were removed in different stage, respectively. Most of sulfide hydrogen and toluene were biooxidized by acidophilic thiobacilli and fungi in the first stage which operated at low pH. And the removal efficiencies of other hydrophilic compounds were higher in the second stage which operated at high pH. The two-stage biofilter has been proved to be an efficient system to treat the complex mixture of odor and VOCs emitted from the WWTP.
wastewater treatment plant two-stage biofilter odor volatile organic compounds
Jianwei Liu Wenlin Ma
Key Laboratory of Urban Stormwater System andWater Environment, Ministry of Education Beijing University of Civil Engineering and Architecture Beijing, China
国际会议
2011 International Conference on Future Environment and Energy(ICFEE 2011)(2011年未来环境与能源大会)
三亚
英文
126-129
2011-03-25（万方平台首次上网日期，不代表论文的发表时间）