Fermentative hydrogen production from starch using natural mixed cultures

Lin, Chiu‐Yue; Chang, Chao-Chi; Hung, Ching Hsia

doi:10.1016/j.ijhydene.2008.02.069

Cited by 137 publications

(30 citation statements)

References 32 publications

(60 reference statements)

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“…After a period of time when the functional consortia got used to the environmental conditions and consequently stabilized, steady-state can take place which is mostly considered to reach when variations in H 2 gas production, pH and effluent (spent media) quality 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 e.g. in terms of soluble metabolic product (SMP) distribution and related concentrations are below 10% on a daily average base [48]. Therefore, appropriate threshold levels of the parameters mentioned can develop an attractive hydrogen-generating biocommunity and govern the whole bioreactor towards better performances e.g.…”

Section: Switch-over Timementioning

confidence: 99%

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Review on the start-up experiences of continuous fermentative hydrogen producing bioreactors

Bakonyi

Nemestóthy

Simon

et al. 2014

Renewable and Sustainable Energy Reviews

113

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a b s t r a c tThe start-up of continuous biohydrogen fermentations is a complex procedure and a key to acceptable hydrogen production performance and successful long-term operation. In this review article, the experiences gained and lessons learned from relevant literature studies dealing with various aspects of H 2 producing bioreactor start-up are comprehensively surveyed. Firstly, the importance of H 2 -forming biosystem start-up including its main steps is outlined. Afterwards, the role of main influencing factors and methods (e.g. strain selection, seed pretreatment and inocula stimulation, switch-over time, bioreactor design, operating conditions) in avoiding the deterioration of starting a reactor is analyzed and presented in detail. Finally, the so far suggested applicable start-up strategies and the corresponding findings are critically discussed pointing out the advantages and disadvantages of each strategy.

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Section: Switch-over Timementioning

confidence: 99%

“…Varying OLR might cause sporulation in hydrogen producing cultures and contribute to the observable fluctuations in the H 2 production efficacy during start-up stage [48,67].…”

Section: Experiences and Lessons Of Continuous H 2 Producing Bioreactmentioning

confidence: 99%

Review on the start-up experiences of continuous fermentative hydrogen producing bioreactors

Bakonyi

Nemestóthy

Simon

et al. 2014

Renewable and Sustainable Energy Reviews

113

View full text Add to dashboard Cite

show abstract

“…The optimal substrate concentrations obtained by Mu et al [4] were about 25 g/L sucrose. The optimal initial pH ob- (13) a Response in terms of hydrogen production potential (mL H2/ g carbohydrate).…”

Section: Validation Of the Identified Optimal Conditionsmentioning

confidence: 99%

“…A natural source has been used to provide inocula which are being selected for spore farmers and to destroy methanogens [12]. There are many research reports on different pretreatments such as base-enrichment [13], acid treatment [14] and heat treatment [10]. However, the enrichment of inocula by heat treatment is most common.…”

Section: Introductionmentioning

confidence: 99%

Statistical Optimization of Biohydrogen Production from Palm Oil Mill Effluent by Natural Microflora

Rasdi¹,

Rahman²,

Abd‐Aziz³

et al. 2009

TOBIOTJ

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Abstract:In this study, palm oil mill effluent (POME) was used as the substrate for biohydrogen production. Heat-treated POME sludge acclimated with POME incubated at 37°C for 24 hours was used as seed culture. Preliminary screening on the effects of inocula sizes, heat treatment, substrate concentration and pH of incubation by using a factorial design (FD) were conducted under mesophilic condition (37°C) using a serum vial (160 mL). The experimental results from two-level FD showed that pH and Chemical Oxygen Demand (COD) of POME significantly affected biohydrogen production. Optimizations of the specific hydrogen production (P s ) and the hydrogen production rate (R m ) were achieved by using a central composite design (CCD). The maximum P s of 272 mL H 2 /g carbohydrate was obtained under optimum conditions of pH 5.75 and substrate concentration of 80 g/L. The maximum R m of 98 mL H 2 /h was calculated under the optimum conditions of pH 5.98 and substrate concentration of 80 g/L. The optimized conditions obtained were subjected to a confirmation run and it showed reproducible data with a P s of 226 mL H 2 /g carbohydrate and R m of 72 mL H 2 /h.

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“…Pure starch was used in most of the reported studies on bio-hydrogen production [7,9,13,17,19,20,[27][28][29]. Waste wheat constitutes a reliable renewable resource for bio-hydrogen production because of its high starch and gluten content ([95%).…”

Section: Introductionmentioning

confidence: 99%

Comparison of different mixed cultures for bio-hydrogen production from ground wheat starch by combined dark and light fermentation

Özmıhçı

Kargı

2009

J Ind Microbiol Biotechnol

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Composition of the mixed culture was varied in combined dark-light fermentation of wheat powder starch in order to improve hydrogen gas formation rate and yield. Heat-treated anaerobic sludge and pure culture of Clostridium beijerinckii (DSMZ 791T) were combined with two different light fermentation bacteria of Rhodobacter sphaeroides (RS-NRRL and RS-RV) in order to select a more suitable mixture resulting in high hydrogen yield and formation rate. A combination of the anaerobic sludge and RS-NRRL yielded the highest cumulative hydrogen (CHF = 140 ml), the highest yield (0.36 mol H2 mol(-1) glucose) and specific hydrogen formation rate (2.5 ml H2 g(-1) biomass h(-1)). During dark fermentation (70 h) hydrogen was produced simultaneously by the dark and light fermentation bacteria using glucose from hydrolyzed starch. However, only light fermentation bacteria produced hydrogen from VFA's derived from dark fermentation after a long adaptation period.

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Fermentative hydrogen production from starch using natural mixed cultures

Cited by 137 publications

References 32 publications

Review on the start-up experiences of continuous fermentative hydrogen producing bioreactors

Review on the start-up experiences of continuous fermentative hydrogen producing bioreactors

Statistical Optimization of Biohydrogen Production from Palm Oil Mill Effluent by Natural Microflora

Comparison of different mixed cultures for bio-hydrogen production from ground wheat starch by combined dark and light fermentation

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