Non-sterile bio-hydrogen fermentation from food waste in a continuous stirred tank reactor (CSTR): Performance and population analysis

Reungsang, Alissara; Sreela-or, Chakkrit; Plangklang, Pensri

doi:10.1016/j.ijhydene.2013.03.138

Cited by 57 publications

(22 citation statements)

References 32 publications

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“…Hydrogen production is usually accompanied by VFAs production . From an HP perspective, acetate (HAc) and butyrate (HBu) are the desirable soluble products, as they are indicative of hydrogenogenic metabolic pathways . The major VFAs detected associated with different S o /X o ratios in this study were acetate (HAc), butyrate (HBu), propionate (HPr), and lactate (HLa) (Table ).…”

Section: Resultsmentioning

confidence: 74%

Optimization of hydrogen production from organic fraction of municipal solid waste (OFMSW) dry anaerobic digestion with analysis of microbial community

Elsamadony

Tawfik

Danial

et al. 2015

Int. J. Energy Res.

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Summary Effect of mixed culture bacteria (MCB) addition, initial substrate concentration to inoculum (So/Xo), carbon to nitrogen (C/N) ratio on the hydrogen production (HP) from organic fraction of municipal solid waste (OFMSW) via dry anaerobic digestion was investigated. The results showed that supplementation of OFMSW with MCB substantially improved hydrogen yield (HY) and HP. HYs were 306.2 ± 33.0, 149.8 ± 16.6, and 155.3 ± 22.9 mlH2/gCODremoved for OFMSW supplemented with MCB, OFMSW, and MCB, respectively. HP at So/Xo ratio of 9.2 gCOD/gVSS was 3.1 times higher than those obtained at So/Xo ratio of 1.7 gCOD/gVSS. The maximum HY of 338.4 ± 18.9 mlH2/gCODremoved was achieved at So/Xo ratio of 9.2 gCOD/gVSS. The HP and HY were substantially increased from 169.7 ± 17.1 to 524.2 ± 34.4 ml and from 163.1 ± 23.6 to 338.4 ± 18.9 mlH2/gCODremoved with increasing the C/N from 16 to 25, respectively. However, HP and HY decreased at C/N ratio exceeding 26.6. The modified Gompertz equation model was highly fitted to the experimental data with correlation coefficient (R2 > 0.984). The 16S rRNA sequences showed the dominance of Pseudomonas fulva with similarity of 99%. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 74%

Optimization of hydrogen production from organic fraction of municipal solid waste (OFMSW) dry anaerobic digestion with analysis of microbial community

Elsamadony

Tawfik

Danial

et al. 2015

Int. J. Energy Res.

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“…At first, bones and other foreign materials were removed and left over waste was treated as food waste. The food waste was then ground in a meat grinder with an equal amount of water and a resultant slurry was used for bio-hydrogen production (Reungsang et al, 2013). Rice and noodles were removed from collected waste and converted into slurry in the same way opted for food waste.…”

Section: Batch Experiments For Bio-hydrogen Productionmentioning

confidence: 99%

Optimizing the impact of temperature on bio-hydrogen production from food waste and its derivatives under no pH control using statistical modelling

et al. 2015

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Abstract. The effect of temperature on bio-hydrogen production by co-digestion of sewerage sludge with food waste and its two derivatives, i.e. noodle waste and rice waste, was investigated by statistical modelling. Experimental results showed that increasing temperature from mesophilic (37 • C) to thermophilic (55 • C) was an effective mean for increasing bio-hydrogen production from food waste and noodle waste, but it caused a negative impact on bio-hydrogen production from rice waste. The maximum cumulative biohydrogen production of 650 mL was obtained from noodle waste under thermophilic temperature condition. Most of the production was observed during the first 48 h of incubation, which continued until 72 h of incubation. The decline in pH during this interval was 4.3 and 4.4 from a starting value of 7 under mesophilic and thermophilic conditions, respectively. Most of the glucose consumption was also observed during 72 h of incubation and the maximum consumption was observed during the first 24 h, which was the same duration where the maximum pH drop occurred. The maximum hydrogen yields of 82.47 mL VS −1 , 131.38 mL COD −1 , and 44.90 mL glucose −1 were obtained from thermophilic food waste, thermophilic noodle waste and mesophilic rice waste, respectively. The production of volatile fatty acids increased with an increase in time and temperature in food waste and noodle waste reactors whereas they decreased with temperature in rice waste reactors. The statistical modelling returned good results with high values of coefficient of determination (R 2 ) for each waste type and 3-D response surface plots developed by using models developed. These plots developed a better understanding regarding the impact of temperature and incubation time on bio-hydrogen production trend, glucose consumption during incubation and volatile fatty acids production.

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“…After stable hydrogen production was achieved, the HRT of R1 reactor was stepwise decreased to 48, 36, and 24 h, respectively to test the effect of increased organic loading. When steady state that is characterized by a constant gas production rate (±10%) was reached [14,15], each level of loading would keep, for 2 times of HRT. The R1 effluent was collected from the optimum HRT and was kept at À20 C for further use in the R2 reactor.…”

Section: Experimental Set-up and Operationmentioning

confidence: 99%

“…Afterwards, the homogenised effluent collected from the optimum HRT condition of R1 reactor was fed into the R1 reactor at HRT of 9 days. The steady state was considered when the variation of biogas production was less than 10% [14,15]. The steady state condition of R2 reactor was also kept for 2 times of HRT operated.…”

Section: Experimental Set-up and Operationmentioning

confidence: 99%

Anaerobic digestion of skim latex serum (SLS) for hydrogen and methane production using a two-stage process in a series of up-flow anaerobic sludge blanket (UASB) reactor

Kongjan

Jariyaboon

O‐Thong

2014

International Journal of Hydrogen Energy

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Non-sterile bio-hydrogen fermentation from food waste in a continuous stirred tank reactor (CSTR): Performance and population analysis

Cited by 57 publications

References 32 publications

Optimization of hydrogen production from organic fraction of municipal solid waste (OFMSW) dry anaerobic digestion with analysis of microbial community

Optimization of hydrogen production from organic fraction of municipal solid waste (OFMSW) dry anaerobic digestion with analysis of microbial community

Optimizing the impact of temperature on bio-hydrogen production from food waste and its derivatives under no pH control using statistical modelling

Anaerobic digestion of skim latex serum (SLS) for hydrogen and methane production using a two-stage process in a series of up-flow anaerobic sludge blanket (UASB) reactor

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