Comparative biochemical methane potential of paragrass using an unacclimated and an acclimated microbial consortium

Nuchdang, Sasikarn; Khemkhao, Maneerat; Techkarnjanaruk, Somkiet; Phalakornkule, Chantaraporn

doi:10.1016/j.biortech.2015.02.049

Cited by 17 publications

(3 citation statements)

References 25 publications

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“…Origin/source Ideal inoculum should be adapted to the substrate to be degraded but this situation is not very common. The acclimation of sludge to fibrous substrate was proposed as a way to increase the methane production of paragrass samples [50]. Frequently, the inoculum source for BMP tests is variable because referenced guidelines do not suggest the use of special types of digesters for sampling selection.…”

Section: Inoculummentioning

confidence: 99%

Predictive regression models for biochemical methane potential tests of biomass samples: Pitfalls and challenges of laboratory measurements

Raposo

Borja

Ibelli-Bianco

2020

Renewable and Sustainable Energy Reviews

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Section: Inoculummentioning

confidence: 99%

Predictive regression models for biochemical methane potential tests of biomass samples: Pitfalls and challenges of laboratory measurements

Raposo

Borja

Ibelli-Bianco

2020

Renewable and Sustainable Energy Reviews

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“…In previous literature, it was reported that anaerobic organisms successively adapted their communities by acclimatizing to the new substrate in a couple of weeks [34,35] but, in the short assay (less than 3 days) as such conducted in this study, the hydrolytic bacteria would not substantially build up their community in time. Therefore, single sludge may not be a good inoculum for BMP assay.…”

Section: Methanogenesis Activitymentioning

confidence: 72%

Integrative Effects of Sonication and Particle Size on Biomethanation of Tropical Grass Pennisetum purpureum Using Superior Diverse Inocula Cultures

et al. 2019

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Biogas from the fast growing crop, Pennisetum purpureum, has received considerable attention in Southeast Asia since wastewater and bio-waste materials are almost completely utilized. To overcome slow hydrolysis, a rate-limiting step in anaerobic digestion of lignocellulosic biomass, superior microorganism culture, size reduction, and sonication pretreatment were co-applied. In the first experiment, the selection of anaerobic microbial culture to be used in digestion, so-called inoculum, was carried out. Specific anaerobic activities for hydrolysis and methanogenesis of sludge from different sources, a slurry digester of cattle farm (CF) and a wastewater digester of rubber latex factory (RL) were assessed. Results revealed a remarkable synergistic capability in the combined sludge, adding 10% and 49% to the overall biomethanation efficiency over the individual CF and RL sludges. In the second part, interactive effects of size reduction and sonication intensity were studied. Biomethanation efficiency as methane yield increased by 62% by size and 115% by sonication variation, but when optimally combined an additional gain of 40% was recorded. The regression model generated could estimate the energy yield increase as a function of size and sonication intensity with a satisfactory statistical precision R2 of 0.945.

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“…a high number of species performing similar functions so that failure of one species can be compensated for by another, with little impact on essential processes [110]. The importance of inoculum selection has been illustrated for different processes, such as biogas production at elevated total ammonium-nitrogen (TAN) levels [111] and for biogas production from straw and paragrass [112,113]. However, while the initial microbial composition affects the start-up and initial phase of reactor operation, its long-term importance is still unclear.…”

mentioning

confidence: 99%

Protocol for Start-Up and Operation of CSTR Biogas Processes

Schnürer

Bohn²,

Moestedt³

2016

Springer Protocols Handbooks

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There is currently a lack of consensus on how biogas processes should be started and run in order to obtain stable, efficient operation. Agreement on start-up and operating parameters would increase the quality of research, allow better comparison of scientific results and increase the applicability of new findings in a general perspective. It would also help full-scale operators avoid common costly mistakes during start-up and operation of biogas processes. The biogas protocol presented in this paper describes appropriate approaches for characterisation of substrate, determination of methane potential, formulation of a suitable substrate, start-up of reactors and monitoring and operation of the biogas process in CSTR reactors.

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Comparative biochemical methane potential of paragrass using an unacclimated and an acclimated microbial consortium

Cited by 17 publications

References 25 publications

Predictive regression models for biochemical methane potential tests of biomass samples: Pitfalls and challenges of laboratory measurements

Predictive regression models for biochemical methane potential tests of biomass samples: Pitfalls and challenges of laboratory measurements

Integrative Effects of Sonication and Particle Size on Biomethanation of Tropical Grass Pennisetum purpureum Using Superior Diverse Inocula Cultures

Protocol for Start-Up and Operation of CSTR Biogas Processes

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