DOI: 10.1016/j.watres.2019.01.005
Scopus记录号: 2-s2.0-85060187765
论文题名: Effects of pig slurry acidification on methane emissions during storage and subsequent biogas production
作者: Shin S.-R. ; Im S. ; Mostafa A. ; Lee M.-K. ; Yun Y.-M. ; Oh S.-E. ; Kim D.-H.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 234
结束页码: 240
语种: 英语
英文关键词: Acidification
; Biogas production
; Greenhouse gas emissions
; Methane
; Pig slurry
; Storage
Scopus关键词: Acidification
; Agriculture
; Biogas
; Carbon dioxide
; Energy storage
; Fertilizers
; Gas emissions
; Mammals
; Methane
; RNA
; Slurry pipelines
; Acidic conditions
; Biogas production
; GHG reductions
; Greenhouse gases (GHG)
; Livestock manure
; Methane emissions
; Pig slurries
; Specific methanogenic activity tests
; Greenhouse gases
; biogas
; carbon dioxide
; methane
; organic matter
; acidification
; biochemical composition
; biogas
; biotechnology
; dominance
; genetic analysis
; inhibition
; manure
; methane
; methanogenesis
; pH
; slurry
; acidification
; agricultural slurry
; Article
; biofuel production
; carbon footprint
; comparative study
; controlled study
; degradation
; greenhouse effect
; livestock
; manure
; Methanobrevibacter
; Methanobrevibacter acididurans
; Methanobrevibacter boviskoreani
; Methanobrevibacter olleyae
; Methanobrevibacter thaueri
; Methanocorpusculum
; Methanocorpusculum aggregans
; Methanoculleus bourgensis
; Methanoculleus sediminis
; methanogenesis
; Methanolobus
; Methanolobus zinderi
; Methanomassiliicocus luminyensis
; Methanosarcina
; Methanosarcina flavescens
; microbial community
; nonhuman
; pH
; pig
; priority journal
; reduction (chemistry)
; RNA analysis
; storage
; Archaea
; Methanosarcina
; Suidae
英文摘要: In addition to undesirable odorous gases, substantial amounts of greenhouse gases (GHG), particularly methane (CH 4 ), are generated during the storage of livestock manure. To reduce the CH 4 emissions, first, pig slurry (PS) was stored for 40 d at 30 °C after adjusting the pH at 5.0–7.0 using H 2 SO 4 solution. In the control (non-acidified PS), 3.7 kg CO 2 eq./ton PS of CH 4 emissions was detected, which was reduced to 1.8, 0.9, 0.4, 0.2, and 0.1 kg CO 2 eq./ton PS at pH 7.0, 6.5, 6.0, 5.5, and 5.0, respectively. Methanosarcina was found to be the dominant genus (67% of the total archaeal sequence) in the control, whose dominance was reduced as storage pH decreased. The results of ribonucleic acid analysis and specific methanogenic activity test further confirmed the inhibition of indigenous methanogens by acidification. Later, the biochemical CH 4 potential of stored PS was tested. Compared to the control (10.6 L CH 4 /L PS), the acidified PS showed higher CH 4 yields of 12.7–14.6 L CH 4 /L PS, presumably by keeping degradable organic matters in PS under acidic condition. Among different acidification pHs tested, the maximum amount of GHG reduction was achieved at pH 6.0 by reducing CH 4 emission to +0.4 kg CO 2 eq./ton PS during storage while increasing biogas production potential equivalent to 48.3 kWh/ton PS (−22.5 kg CO 2 eq./ton PS), resulting in a further reduction of (−)9.6 kg CO 2 eq./ton PS compared to the control. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122007
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Civil Engineering, Inha University, 100 Inharo, Nam-gu, Incheon, 22212, South Korea; Department of Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju, Chungbuk 28644, South Korea; Department of Civil and Environmental Engineering, Hanbat National University, 125 Dongseodaero, Yuseong-gu, Daejeon, 305-719, South Korea
Recommended Citation:
Shin S.-R.,Im S.,Mostafa A.,et al. Effects of pig slurry acidification on methane emissions during storage and subsequent biogas production[J]. Water Research,2019-01-01