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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1177/0734242X13517417
|2 doi
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|a pubmed24n0784.xml
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|a DE-627
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|e rakwb
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| 041 |
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|a eng
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|a Gunaseelan, Victor Nallathambi
|e verfasserin
|4 aut
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| 245 |
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|a Biogas production from Pongamia biomass wastes and a model to estimate biodegradability from their composition
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 30.09.2014
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|a Date Revised 21.09.2015
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|a published: Print
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|a Citation Status MEDLINE
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|a In this study, I investigated the chemical characteristics, biochemical methane potential, conversion kinetics and biodegradability of untreated and NaOH-treated Pongamia plant parts, and pod husk and press cake from the biodiesel industry to evaluate their suitability as an alternative feedstock for biogas production. The untreated Pongamia seeds exhibited the maximum CH4 yield of 473 ml g (-1) volatile solid (VS) added. Yellow, withered leaves gave a yield as low as 122 ml CH4 g (-1) VS added. There were significant variations in the CH4 production rate constants, which ranged from 0.02 to 0.15 d (-1), and biodegradability, which ranged from 0.25 to 0.98. NaOH treatment of leaf and pod husk, which were highly rich in fibers, increased the yields by 15-22% and CH4 production rate constants by 20-75%. Utilization of Pongamia wastes in biogas digesters not only influences the economics of biodiesel production but also yields CH4 fuel and protects the environment. The experimental data from this study were used to develop a multiple regression model, which could estimate biodegradability based on biochemical characteristics. The model predicted the biodegradability of previously published biomass wastes (r(2) = 0.88) from their biochemical composition. The theoretical CH4 yields estimated as 350 ml g(-1) chemical oxygen demand destroyed are much higher than the experimental yields as 100% biodegradability is assumed for each substrate. Upon correcting the theoretical CH4 yields with biodegradability data obtained from chemical analyses of substrates, their ultimate CH4 yields could be predicted rapidly
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|a Journal Article
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|a Biochemical methane potential assay
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|a NaOH pretreatment
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|a Pongamia biomass
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|a biodegradability
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|a biogas yield
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|a regression model
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|a Biofuels
|2 NLM
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|a Methane
|2 NLM
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|i Enthalten in
|t Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
|d 1991
|g 32(2014), 2 vom: 28. Feb., Seite 131-9
|w (DE-627)NLM098164791
|x 1096-3669
|7 nnns
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| 773 |
1 |
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|g volume:32
|g year:2014
|g number:2
|g day:28
|g month:02
|g pages:131-9
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|u http://dx.doi.org/10.1177/0734242X13517417
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