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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.8
- 수록면
- 554 - 566 (13page)
- DOI
- 10.5572/KOSAE.2018.34.4.554
이용수
초록· 키워드
오류제보하기
The rice husk contains nutrients which can be easily utilized by microorganisms, and also has a water retaining ability, which played a crucial part in enabling it to become a biofilter media. In this study, we evaluated the applicability of rice husk pellet bio-scrubber as a microbiological carrier. The pelletization experiment of rice husk as a biological media was performed using PVA and EVA binder. Also, the feasibility tests of rice husk as a biological media for odor removal were carried out in order to know whether rice-husk contains useful components as a media for microbiological growth or not. Lastly, a combined test for odor gas absorption and biological oxidation was conducted using a lab scale bio-filter set-up packed with rice-husk pellets as wet-scrubber. The major components of the rice husk were carbon, hydrogen, nitrogen, and oxygen, while carbon acted as the main ingredient which comprised up to 23.00%. The C : N : P ratio was calculated as 45 : 1 : 2. Oxygen uptake rate, yield and decay rate of the rice husk eluent was calculated to be 0.0049 mgO₂/L/sec, 0.24 mgSS/ mgCOD and 0.004 respectively. The most stable form of rice husk pellets was produced when the weight of the rice husk, EVAc, PVAc, and distilled water was 10 : 2 : 0.2 : 10. The prepared rice husk pellets had an apparent density of 368 g/L and a porosity of 59.00% upon filling. Dry rice husks showed high adsorption capacity for ammonia gas but low adsorption capacity for hydrogen sulfide. The bio-filter odor removal column filled with rice husk pellets showed more than 99.50% removal efficiency for NH₃ and H₂S gas. Through the analysis of circulation water, the prime removal mechanism is assumed to be the dissolution by water, microbial nitrification, and sulfation. Finally, it was confirmed that the microorganisms could survive well on the rice husk pellets, which provided them a stable supply of nutrients for their activity in this long-term experiment. This adequate supply of nutrients from the rice husk enabled high removal efficiency by the microorganisms.
목차
Abstract
1. 서론
2. 실험방법 및 내용
3. 결과 및 고찰
4. 결론
References
참고문헌 (33)
참고문헌 신청
[학술지(정기간행물)] - Ahmed, W. / 2014 / Dynamic modeling and analysis of biotrickling filters in continuous operation for $H_2S$ removal / Clean Technologies and Environmental Policy 16 (8) : 1757 ~ 1765
[인터넷자원] - AMBIO Bio filtration Ltd / 2016 / Biofiltration Process
[단행본] - Bajpai, P. / 2014 / Biological Odour Treatment / Springer
[학술지(정기간행물)] - Chen, L. / 2009 / Mitigating odors from agricultural facilities: a review of literature concerning biofilters / Applied Engineering in Agriculture 25 (5) : 751 ~ 766
[학술지(정기간행물)] - Chen, Q. / 2012 / Ammonium removal by Agrobacterium sp. LAD9 capacble of heterotrophic nitrification-aerobic denitrification / Journal of Bioscience and Bioengineering 113 : 619 ~ 623
[인터넷자원] - AMBIO Bio filtration Ltd / 2016 / Biofiltration Process
[단행본] - Bajpai, P. / 2014 / Biological Odour Treatment / Springer
[학술지(정기간행물)] - Chen, L. / 2009 / Mitigating odors from agricultural facilities: a review of literature concerning biofilters / Applied Engineering in Agriculture 25 (5) : 751 ~ 766
[학술지(정기간행물)] - Chen, Q. / 2012 / Ammonium removal by Agrobacterium sp. LAD9 capacble of heterotrophic nitrification-aerobic denitrification / Journal of Bioscience and Bioengineering 113 : 619 ~ 623
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UCI(KEPA) : I410-ECN-0101-2018-539-003413675