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논문 기본 정보

자료유형
학술저널
저자정보
김대근 (서울산업대학교) George A. Sorial
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제25권 제6호
발행연도
2009.12
수록면
503 - 511 (9page)

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VOC mixture was fed to a trickle bed air biofilter (TBAB) with step-change in influent mixture concentrations from 50 ppmv to 1,000 ppmv, corresponding to loadings of 5.7 g/㎥/hr to 114.1 g/㎥/hr. VOC mixture was an equimolar ratio of two aromatic VOCs, i.e., toluene and styrene, and two oxygenated VOCs, i.e., methyl ethyl ketone (MEK) and methyl isobutyl ketone (MIBK). The TBAB system employed backwashing as biomass control. The experimental results showed that a critical loading rate for VOC mixture removal was determined to be about 60 g/㎥/hr, and critical loading rates for individual VOCs in the mixture were different. Specifically, toluene content in the mixture played a major role in the biofilter overall performance. As VOC mixture was fed beyond the critical loading rate, reacclimation of the biofilter to reach the 99% removal efficiency following backwashing was delayed, which was a critical factor in the biofilter performance. In the mass balance analysis, 63.8% of the carbon equivalent in VOCs removal was used for CO₂ production during the experimental runs. The 82.6% nitrogen utilized in the biofilter was contributed to microbial cell synthesis. The obtained results were compared against consistently high efficient performance of TBAB for VOC mixture by employing backwashing as biomass control.

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Abstract
1. 서론
2. 실험방법
3. 결과 및 고찰
4. 결론
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