액상 가축분뇨의 처리 및 토양환원에 따른 악취 및 악취물질의 평가
Evaluation of Odors and Odorous Compounds from Liquid Animal Manure Treated with Different Methods and Their Application to Soils
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초록
효율적인 악취방지책을 수립하고 시행하는 것은 지속가능한 축산 뿐만 아니라 증가되는 악취 민원과 더욱 엄격해지는 법규에 대응하기 위해 필수적이다. 본 연구는 돈분뇨의 처리방법에 따른 액상분뇨 유래 악취 및 처리방법이 다른 액상분뇨를 토양에 살포시 발생하는 악취 및 악취물질을 평가하기 위하여 수행되었다. 시험에 사용된 액상분뇨는 신선 분뇨, 혐기성 소화 액상분뇨 및 고온 호기성 소화 액상분뇨를 이용하였고, 토양 특성이 다른 논/밭 토양을대상으로 총 6처리 5반복 설계 배치하였다. 시료 포집은 관능법과 기기분석법에 사용될 시료를 각각 주사기와 테들러 백을 이용하여 액상분뇨와 액상분뇨를 살포한 토양의 상부공간에서 채취하였다. 악취 분석은 관능법을 이용하여 악취강도 및 불쾌도를 평가하였고, 기기분석법으로는 질소화합물 악취물질인 암모니아를 흡광광도법, 황화합물 악취물질인 황화수소, 메틸머캅탄, 다이메틸설파이드 및 다이메틸다이설파이드를 GC-PFPD를 이용하여 분석하였다. 처리과정이 다른 액상분뇨의 악취 및 악취물질 발생 평가에서 고온 호기성 소화 액상분뇨가 신선 분뇨 및 혐기성 소화 액상분뇨에 비해 악취강도, 불쾌도 및 악취농도 저감 효과가 매우 두드러지게 나타났으며 통계적으로도 유의적인 차이가 인정되었다. 혐기성 소화 액상분뇨와 고온 호기성 소화 액상분뇨에서 발생되는 황화수소, 메틸머캅탄, 다이메틸설파이드, 다이메틸다이설파이드 및 암모니아의 평균농도는 각각 65.93 : 5.15 ppb, 18.55 : 0.97ppb, 5.26 : 0.80ppb, 0.33 : 0.56ppb 및 10.57 : 1.34ppm으로 분석되었다. 액상분뇨를 밭과 논 토양에 살포시 혐기성 소화 액상분뇨와 고온 호기성 소화 액상분뇨가 각각 51~94% 및 22~91%의 암모니아 저감 효율을 나타내었다. 본 시험의 결과를 종합할 때 고온 호기성 소화 액상분뇨가 악취 저감이라는 측면에서 다른 처리방법에 비해 우수한 것으로 나타났으며, 액상분뇨의 토양환원에서 발생되는 악취문제는 액상분뇨의 처리방법에 따른 악취발생 정도와 직접적인 연관이 있다고 사료된다.
Abstract
To comply with stricter regulations provoked by increasing odor nuisance, it is imperative to practice effective odor control for sustainable livestock production. This study was conducted to assess odor and odorous compounds emitted from liquid animal manure with different treatment methods such as Fresh Manure(without treatment, FM), Anaerobic Digestion(AD) and Thermophilic Aerobic Digestion(TAD) and their application to soil. Air samples were collected at the headspace of liquid manure, upland and paddy soil, and analyzed for odor intensity and offensiveness using an olfactometry; odor concentration index using odor analyser; nitrogen-containing compound such as ammonia(NH3) using fluorescence method; and sulfur containing compounds such as hydrogen sulfide(H2S), methyl mercaptan(MeSH), dimethyl sulfide(DMS) and dimethyl disulfide(DMDS) using gas chromatography-pulsed flame photometric detector, respectively. Odor intensity, offensiveness and concentration index from TAD liquid manure was statistically lower than those from FM and AD(p<0.01). Mean concentrations of H2S, MeSH, DMS, DMDS and NH3 were 65.93ppb, 18.55ppb, 5.26ppb, 0.33ppb and 10.57ppm for liquid manure with AD; and 5.15ppb, 0.97ppb, 0.80ppb, 0.56ppb and 1.34ppm for liquid manure with TAD, respectively. More than 60% of malodorous compounds related to nitrogen and sulfur were removed by heterotrophic microorganisms during TAD treatment. When liquid manure was applied onto upland and paddy soil, NH3 removal efficiencies ranged from 51 to 94% and 22 to 91% for AD and TAD liquid manure, respectively. The above results show that liquid manure with TAD is superior to AD and FM with respect to the odor reduction and odor problem caused by land applied liquid manure is directly related to the degree of odor generated by the manure treatment method.
참고문헌 (40)
- "Ammonia emissions from animal feeding operations" (2002), North Carolina State University
- "Formation of volatile sulfur compounds by microbial decomposition of sulfur-containing amino acids in soils", 7, pp.359~364 (1975)
- "Identification of sulfur gases evolved from animal manures", 4, pp.363~366 (1975)
- "The Nature and Properties of Soils, 11th ed." (1996), Prentice Hall
- "Ammonia in the UK-Key points." (2001), DEFRA(Department for Environment, Food & Rural Affairs).
- "Sulfate-reducing bacteria", 26(1), pp.155~187 (1996)
- "Agricultural problems related to odor prevention and control In Odor Prevention and Control of Organic Sludge and Livestock Farming Edited by V", pp.21~26 (1985), Elsevier Applied Science Publishers
- "Ammonia volatilization from liquid swine manure applied to cropland", pp.90~95 (1981)
- "Odor control for animal agriculture" (1998), Minnesota State Univ
- "Emission control systems", pp.202~212 (2002), Iowa Concentrated Animal Feeding Operations Air Quality Study.
- "Biochemical identification and biological origin of key odor components in livestock waste", 76, pp.1331~1342 (1998)
- "Additives to reduce ammonia and odor emissions from livestock wastes: A review", 30(2), pp.345~355 (2001)
- "National Institute for Occupational Safety and Health NIOSH Manual of Analytical Method" (1994), Cincinnati
- "A review of the control of odour nuisance from livestock buildings Properties of the odorous substances which have been identified in livestock wastes or in the air around them", pp.23~50 (1992)
- "Odours from application of livestock wastes to land In New Knowledge in Livestock Odor", pp.125~126 (1995)
- "Odour and ammonia emissions following the spreading of aerobically treated pig slurry on grassland", pp.259~267 (1990)
- "Studies on reducing the odour and ammonia emissions during and after the land spreading of animal slurries", pp.17~23 (1990)
- "The Problem of Hydrogen Sulfide in Sewers" (1976), Ltd
- "Odor compounds in waste gas emissions from agricultural operations and food industries", 25, pp.887~907 (2005)
- "Proceeding of ⅩⅧ international forum on soil taxonomy and agrotechnology transfer" (1988)
- "Biochemical identification and biological origin of key odor components in livestock waste", 76, pp.1331~1342 (1998)
- "SAS user's guide." (1999), SAS Institute Inc
- "Reduction of ammonia emission by slurry application techniques", 77(3), pp.277~287 (2000)
- "Ammonia emission from field applied manured and its reduction-invited paper", 15, pp.1~15 (2001)
- "Ammonia volatilization from cattle and pig slurry during storage and after application in the field The Danish Institute of Plant and Soil Science" (1992)
- "Aerobic treatment of livestock slurries", (2) (1995)
- "Mcgraw-Hill Series in Water Resources and Environmental Engineering", tchoba(glous) (1991), Inc
- "Isolation and identification of hyper-ammonia producing bacteria from swine manure storage pits", 48, pp.20~26 (2004)
- "The oxygen requirements for deodorising and stabilising pig slurry by aerobic treatment", pp.291~311 (1989)
- "Odor Control for Wastewater Facilities Manual of Practice No 22" (1985)
- "A review of microbiology in swine manure odor control", 78, pp.93~106 (2000)
- "한강유역내 축분퇴비공장 악취발생에 대한 현장 평가", 43(6), pp.1005~1018 (2001)
- "친환경농업육성법" (1997), 농림부
- "친환경농업을 위한 가축분뇨 퇴비액비 제조와 이용", pp.157~168 (1999), 농업과학기술원
- "악취의 성분 분석" (1997), 동화기술
- "악취의 관능측정" (1998), 도서출판 복
- "친환경 축산발전 과제와 대책", pp.13~25 (2003)
- "축산분뇨의 자동 퇴비화 방안연구" (2002), 한강수계관리위원회
- "21세기 친환경 순환농업의 발전모델과 정책과제" (2003)
- "악취물질 발생원 관리방안 개선을 위한 조사연구" (2001), 환경부
