Browse > Article

Effects of Retention Time on the Simultaneous of Odor Removal and Sludge Solubilization Using a Non-Thermal Plasma System  

NamGung, Hyeong-Gyu (세종대학교 건설환경공학과)
Hwang, Hyun-Jung (세종대학교 건설환경공학과)
Song, Ji-Hyeon (세종대학교 건설환경공학과)
Publication Information
Journal of Korean Society of Water and Wastewater / v.25, no.6, 2011 , pp. 815-824 More about this Journal
Abstract
In this study, a non-thermal plasma system was employed to simultaneously remove odorous compounds and organic sludge. The system consisted of two reactors; the first one was the non-thermal plasma reactor where ozone was produced by the plasma reaction and the ozone oxidized hydrogen sulfide, the model odorous compound, and then the ozone-laden gas stream was introduced to the second reactor where wasted sludge was disintegrated and solubilized by ozone oxidation. In this study, the gas retention time (GRT) and the hydraulic retention time (HRT) were changed in the two-reactor system, and the effects of GRT and HRT on reduction efficiencies of odor and sludge were determined. As the GRT increased, the ozone concentration increased resulting in an increasing efficiency of hydrogen sulfide removal. However, the overall ozone loading rate to the second sludge reactor was the same at any GRT, which resulted in an insignificant change in sludge reduction rate. When HRTs in the sludge reactor were 1, 2, 4 hours, the sludge reduction rates were approximately 30% during the four-hour operation, while the rate increased to 70% at the HRT of 6 hours. Nevertheless, at HRTs greater than 4 hours, the solubilization efficiency was not proportionally increased with increasing specific input energy, indicating that an appropriate sludge retention time needs to be applied to achieve effective solubilization efficiencies at a minimal power consumption for the non-thermal plasma reaction.
Keywords
Odor; Sludge; Non-Thermal Plasma; Ozone; Gas Retention Time; Hydraulic Retention Time; Solubilization;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 김대승, 2000, "산업현장의 악취 제거 기술과 최근동향," 한국공업화 학회 환경기술심포지엄, 111-134.
2 김정웅, KweKuSeKyama, 이도원, 김현욱, 2006, "하수 및 하수처리장에서 발생하는 악취에 대한 고찰", 한국냄새환경학회지, Vol.5, No.3, pp.180-192.
3 김현하, 오가타 아쯔시, 후타무라 시게루, 2006, "저온플라즈마 구동 촉매 반응기를 이용한 벤젠과 톨루엔의 처리", 한국대기환경학회지, Vol.22, No.1, pp.43-51.
4 남영우, 한금석, 2011, "국내 하수슬러지 처리현황 및 개선방안", 한국폐기물자원순환학회, Vol. 28, No. 1, pp. 103-109
5 박귀환, 오길영, 이지헌, 정경훈, 정선용, 2005, "3개 유형의 하수처리장에서 발생하는 악취물질의 비교", 한국냄새환경학회지, vol.4, No.4, pp.196-206.
6 이명주, 김태형, 정미영, 김진성, 이언행, 황선진, 2008, "균질기 및 금속촉매/오존산화에 의한 가용화 처리가 호기성처리에 의한 하수슬러지 감량화에 미치는 영향", 한국폐기물학회지, Vol.25, No.7, pp.619-625.
7 이순화, 정계주, 권진하, 이세한, 2011, "마이크로버블오존을 이용한 잉여슬러지 가용화 처리가 생물반응조의 성능에 미치는 영향", 대한환경공학회지, Vol. 33, No. 2, pp. 113-119.
8 이창근, 황은주, 강성재, 빈정인, 이병헌, 2004, "오존을 이용한 '하수슬러지의 감량화와 안정화", 한국물환경학회지, Vol.20, No, 3.290-295.
9 이해완, 류삼곤, 박명규, 박현배, 황경창, 2003"유전체 충전형 플라즈마 반응기를 이용한 Trichloroethylene의 분해반응", 한국화학공학회, Vol.41, No, 3.368-376.
10 전관수, 양봉호, 전창훈, 2011, "오존과 초음파 동시처리에 의한 하수슬러지 가용화 특성 연구", 한국폐기물자원순환학회지, Vol.28, No.1, pp.60-66.
11 팽종인, 박혜숙, 김학민, 2004, "하수처리장 악취발생원 도출 및 저감능 평가", 환경관리학회지, Vol. 10, No. 2, pp. 101-109.
12 환경부, 2008, "하수슬러지 종합대책"
13 환경부, 2011, "2010년도 공공하수처리시설 운영관리실태 분석결과"
14 황현정, 안해영, 신승규, 송지현, 2010, "무기악취와 슬러지 동시 처리를 위한 저온 플라즈마의 적용", 상하수도학회지, Vol.24, No.1, pp.85-92.
15 Barlindhaug, J., 1992, "Thermal hydrolysate as a carbon source for denitrification", Water Science and Technology, Vol.33, No.12, 99
16 Chu, L., Yan, S., Xing, X. H. and Jurcik, B., 2009, "Progress and perspectives of sludge ozonation as a powerful pretreatment method for monimization of excess sludge production", Water Research, Vol. 43, pp.1811-1822.   DOI   ScienceOn
17 Deleris, S., Geaugey, V., Camacho, P., Debellefontaine, H. and Paul, E., 2002. "Minimization of sludge production in biological processes: an alternative solutionfortheproblemofsludgedisposal", Water Science and Technology Vol. 46 No. 10, 63-70.
18 Hayashi, N., Suganuma, H., Satoh, S. and Yamabe, C., 2001, "Treatmentofvolatileorganiccompoundsby positive streamer corona using a series gap", Japanese journal of applied physics, Vol. 40, pp. 6104-6018.   DOI
19 Moreau, M., Orange, N., Feuilloley, M.G.J., 2008, "Nonthermal plasma technologies: New tools for biodecontamination", Biotechnology Advances, Vol. 26, pp.610-617.   DOI   ScienceOn
20 Muller. J, 2000, "Pretreatment processes for the recycling and reuse of sewage sludge", Water Science and Technology, Vol.42, No.9, pp.167-174.
21 Oda, T, 2003, "Non-thermal plasma processing for environmental protection: decomposition of dilute VOCsinair", Journal of Electrostatics, Vol.57, pp. 293-311   DOI   ScienceOn
22 Song, J.J., Takeda, N.andHiraoka, M., 1992, "Anaerobic treatment of sewage sludge treated by catalytic wet oxidation process in upflow anaerobic sludge blanket reactors", Water Science and Technology. Vol.26, pp.867-874.   DOI
23 Kinney, K.A., Loehr, R.C. and Corsi R.L., 1999, "Vaporphase bioreactors: avoiding problems through better design and operation," Environ. Prog. Vol.18, pp. 222-230.   DOI   ScienceOn
24 Tanaka, S., Kobayashi, T., Kamiyama, K.and Bildan, M. L, 1997, "Effects of thermochemical pretreatment on the anaerobic digestion of waste activated sludge", Water, Science, and, Technology, Vol., 35, No., 8, pp., 209-216.   DOI   ScienceOn
25 Tonkyn, R. G., Barlow, S. E., Orlando, T. M., 1996, "Destruction of carbon tetrachloride in a dielectric barrier/packed-bed corona reactor", Journal of Applied Physics, Vol., 80, No., 9, pp., 4877-4886.   DOI   ScienceOn
26 Yamamoto, T., Ramanathan, K., Lawless, P., A., Ensor, D. S., Newsome, J. R., Ramsey, G. H., and, Plaks, N., 1992, "Control of volatile organic compounds by an acenergized ferroelectric pellet reactor and a pulsed corona reactor", IEEE Transaction on Industry Applications, Vol., 28, No., 3, pp., 528-534.   DOI   ScienceOn
27 Van, Langenhove, H., Lootens, A. and Schamp, N., 1988, "Objective evaluation of an odour nuisance problem based on inquiry results", Atmospheric environment, Vol., 22, No., 11, pp., 2509-2513.   DOI   ScienceOn