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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.12
- 수록면
- 811 - 817 (7page)
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이 논문의 연구 히스토리 (7)
2009
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초록· 키워드
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A two-stage bioreactor system using sulfur-oxidizing bacteria was studied to abate high strength hydrogen sulfide (H₂S) from biogas. The two-stage bioreactor consisted of a H₂S absorption column (0.5 L) and a microbial oxidation column (1 L) in series, and the liquid medium was continuously recirculated through the columns. The objectives of this study were to determine the feasibility of the bioreactor for biogas desulfurization and to investigate the effect of the medium circulation rate on the system performance. An averaged concentration of H₂S introduced to the bioreactor was 530 ppm, corresponding to an overall loading rate of 44.4 g/m³/hr. During the initial 20 days period at the medium recirculation rate of 8 reactor volumes per hour (12 L/hr), the dissolved oxygen (DO) concentration in the oxidation column was 6 mg/L, while the DO in the absorption column was 0.5 mg/L showing that the oxygen contents of the biogas stream was not altered. Because of the biological oxidation of H₂S in the oxidation column, the sulfate concentration increased from 200 mg/L to 5,600 mg/L in the liquid medium. The removal efficiency of H2S was greater than 99% in the initial operation period. After the initial period, the medium recirculation rate between the two columns was stepwise changed eight times from 1.0 to 40 vol/hr (1.5~60 L/hr). At the recirculation rate of faster than 4 vol/hr, the H₂S removal efficiencies were found to be high, but the efficiency declined at the lower recirculation rates than the threshold.
목차
Abstract
1. 서론
2. 실험 및 방법
3. 결과 및 고찰
4. 결론
References
참고문헌 (19)
참고문헌 신청
1. [학술지(정기간행물)] - Chaiprapat, S / 2011 / Removal of hydrogen sulfide by complete aerobic oxidation in acidic biofiltration / Process Biochemistry 46 : 344 ~ 352
2. [학술지(정기간행물)] - Charnnok, B. / 2013 / Oxidation of hydrogen sulfide in biogas using dissolved oxygen in the extreme acidic biofiltration operation / Bioresource Technology 131 : 492 ~ 499
3. [학술지(정기간행물)] - Elias, A / 2002 / Evaluation of a packing material for the biodegradation of H2S and product analysis / Process Biochemistry 37 : 813 ~ 820
5. [학술지(정기간행물)] - Kim, Y.-S / 2012 / Status of biogas technologies and policies in South Korea / Renewable and Sustainable Energy Reviews 16 : 3430 ~ 3438
6. [학술지(정기간행물)] - Lee, E.-Y. / 2006 / Removal of hydrogen sulfide by sulfate-resistant Acidithiobacillus thiooxidans AZ11 / Journal of Bioscience and Bioengineering 101 (4) : 309 ~ 314
2. [학술지(정기간행물)] - Charnnok, B. / 2013 / Oxidation of hydrogen sulfide in biogas using dissolved oxygen in the extreme acidic biofiltration operation / Bioresource Technology 131 : 492 ~ 499
3. [학술지(정기간행물)] - Elias, A / 2002 / Evaluation of a packing material for the biodegradation of H2S and product analysis / Process Biochemistry 37 : 813 ~ 820
5. [학술지(정기간행물)] - Kim, Y.-S / 2012 / Status of biogas technologies and policies in South Korea / Renewable and Sustainable Energy Reviews 16 : 3430 ~ 3438
6. [학술지(정기간행물)] - Lee, E.-Y. / 2006 / Removal of hydrogen sulfide by sulfate-resistant Acidithiobacillus thiooxidans AZ11 / Journal of Bioscience and Bioengineering 101 (4) : 309 ~ 314
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