Biochemical methane potential of biomass and waste feedstocks

Chynoweth, D.P.; Turick, Charles E.; Owens, J.M.; Jerger, D.E.; Peck, Michael W.

doi:10.1016/0961-9534(93)90010-2

Cited by 348 publications

(132 citation statements)

References 9 publications

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“…The vials were then incubated at 37 • C under stirring conditions (15.7 rad/s) and the pressure increase was monitored by the above-mentioned pressure transducer device. At regular time intervals, the vials were depressurised and the biogas composition was analyzed for CH 4 and CO 2 content. Biodegradability tests were performed in duplicate assays.…”

Section: Biodegradation Experimentsmentioning

confidence: 99%

“…The use of a large inoculum amount in a batch process allows a successful digestion without pH adjustment, being a value of 1 (VS basis) usually used in the assessment of the biochemical methane potential (BMP) [3]. However, in the case of more recalcitrant wastes, the rate of methane production in BMP assays was optimized by decreasing the waste/inoculum ratio to 0.5 g VS/g VS [4]. Although typical values are indicated for the required amount of inoculum, little attention is usually devoted to the influence of inoculum activity.…”

Section: Introductionmentioning

confidence: 99%

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Influence of inoculum activity on the bio-methanization of a kitchen waste under different waste/inoculum ratios

Neves

Oliveira

Alves

2004

Process Biochemistry

195

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The use of a granular inoculum prevented acidification during the anaerobic batch biodegradation of a kitchen waste for waste/inoculum ratios in the range of 0.5-2.3 g VS/g VS, when the alkalinity/COD ratio was 37 mg NaHCO 3 /g COD. In similar experiments but using a suspended sludge with a significantly lower activity, the methane production rates and the biodegradability were significantly lower and the pH decreased below 5.5 at the waste/inoculum ratio of 2.3 g VS/g VS. When the added alkalinity was decreased to 2 mg NaHCO 3 /g COD, the ratio waste/inoculum was clearly more important than the inoculum activity, since, irrespective of the sludge used, acidification occurred at waste/inoculum ratios higher than 0.5 g VS/g VS. The advantage of using granular sludge was further investigated in order to define reasonable condition of waste/inoculum ratio and added alkalinity that could be applied in practice. For a waste/inoculum ratio of 1.35, there were no significant differences between the results obtained for the biodegradability and maximum methane production rate (MMPR), when the alkalinity decreased from 44 to 22 mg NaHCO 3 /g COD.

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Section: Biodegradation Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of inoculum activity on the bio-methanization of a kitchen waste under different waste/inoculum ratios

Neves

Oliveira

Alves

2004

Process Biochemistry

195

View full text Add to dashboard Cite

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“…, 당근 (Knol et al, 1978), 식물줄기 (Chynoweth et al, 1993;Hashimoto, 1986) 등 다양한 농산부산물에 대한 연구 가 보고되고 있다. 국내에서도 1980년대에 식물박류 (Lim and Park, 1982a), 강피류 (Lim and Park, 1983), 식품가공 슬러지 (Lim, 1980;Lim and Park, 1982b …”

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Biochemical Methane Potential of Agricultural Byproduct in Greenhouse Vegetable Crops

Shin¹,

Kim²,

Lee³

et al. 2011

Korean Journal of Soil Science and Fertilizer

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Number of crop residues generated at large amount in agriculture can be utilized as substrate in methane production by anaerobic digestion. Greenhouse vegetable crop cultivation that adopting intensive agricultural system require the heating energy during winter season, meanwhile produce waste biomass source for the methane production. The purpose of this study was to investigate the methane production potential of greenhouse vegetable crop residues and to estimate material and energy yield in greenhouse system. Cucumber, tomato, and paprika as greenhouse vegetable crop were used in this study. Fallen fruit, leaf, and stem residues were collected at harvesting period from the farmhouses (Anseong, Gyeonggi, Korea) adopting an intensive greenhouse cultivation system. Also the amount of fallen vegetables and plant residues, and planting density of each vegetable crop were investigated. Chemical properties of vegetable waste biomass were determined, and theoretical methane potentials were calculated using Buswell's formula from the element analysis data. Also, BMP (Biochemical methane potential) assay was carried out for each vegetable waste biomass in mesophilic temperature (38℃). Theoretical methane potential (B th ) and Ultimate methane potential (B u ) off stem, leaf, and fallen fruit in vegetable residues showed the range of 0.352∼0.485 Nm ) of crop residue may be highly influenced by biomass yield which is mainly affected by planting density.

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“…There are several factors which limit AD efficiency, i.e., the cell wall resistance to anaerobic digestion, cellulose or hemicellulose content in biomass, formation of toxic compounds for anaerobic bacteria, as well as an inappropriate C/N ratio in the feedstock subjected to anaerobic reactors (Chynoweth et al 1993;Mata-Alvarez et al 2000;Yen and Brune 2007). The C/N ratio in the feedstock for AD amounts to 20/1-30/1 (Parkin and Owen 1986).…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Co-digestion of the Energy Crop Sida hermaphrodita and Microalgae Biomass for Enhanced Biogas Production

et al. 2017

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This study presents the results of anaerobic codigestion of perennial crop Sida hermaphrodita and microalgae biomass under semi-continuous conditions. The aim of this study was to compare biogas potential from the silage of Sida mixed in different ratios with microalgal species of Chlorella sp. and Scenedesmus sp. The results showed that the co-digestion process improved biogas/ methane production to the level of 594.52/351.88 mL/g volatile solids. The best results were achieved when microalgae biomass constituted 40 and 60% of the substrate, and C/N ratio ranged from 14.69 to 20.61. The composition of digestates was also determined.

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Biochemical methane potential of biomass and waste feedstocks

Cited by 348 publications

References 9 publications

Influence of inoculum activity on the bio-methanization of a kitchen waste under different waste/inoculum ratios

Influence of inoculum activity on the bio-methanization of a kitchen waste under different waste/inoculum ratios

Biochemical Methane Potential of Agricultural Byproduct in Greenhouse Vegetable Crops

Anaerobic Co-digestion of the Energy Crop Sida hermaphrodita and Microalgae Biomass for Enhanced Biogas Production

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