Influence of chemical nature of organic wastes on their conversion to hydrogen by heat-shock digested sludge

Lay, Jiunn‐Jyi; Fan, Kuo-Shuh; Chang, James-I; Ku, Chia-Hung

doi:10.1016/s0360-3199(03)00027-2

Cited by 252 publications

(119 citation statements)

References 15 publications

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“…Other parameters like TS, VS, COD, VFA and alkalinity were measured according to standard methods (APHA, 2005). For glucose detection, phenol sulphuric acid method was used (Lay and Fan, 2003).…”

Section: Chemical Analysismentioning

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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Section: Chemical Analysismentioning

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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“…The differences in the optimum S 0 /X 0 ratios in the literature can be attributed to the differences in the waste type and characteristics as well as the anaerobic digester sludges. Carbohydrates, which represent 30% of thin stillage (Table 2), play the main role in H 2 production [33]. It is obvious that with the low percentage of hydrogen producers in the ADS, only a part of the carbohydrates in thin stillage was converted to hydrogen with a maximum conversion efficiency of 74% at S 0 /X 0 ratio of 1 gCOD/gVSS, while in batches using AADS the carbohydrates conversion efficiency reached 90% at S 0 /X 0 ratio of 4 gCOD/gVSS as illustrated in Table 4.…”

Section: Hydrogen Yieldsmentioning

confidence: 99%

Bio-hydrogen production from thin stillage using conventional and acclimatized anaerobic digester sludge

Nasr

Elbeshbishy

Hafez

et al. 2011

International Journal of Hydrogen Energy

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“…However, most of hydrogen-consuming microorganisms, e.g., methanogens, do not have this characteristic. So, thermal pretreatment (including sterilization), acid and alkaline pretreatments can be used to screen hydrogen-producing species [9][10][11][12][13]. Additionally, the growth rate of most hydrogen-producing microorganisms is faster than that of hydrogen-consuming ones.…”

Section: Introductionmentioning

confidence: 99%

Biological hydrogen production from sterilized sewage sludge by anaerobic self-fermentation

Xiao

Liu

2009

Journal of Hazardous Materials

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Influence of chemical nature of organic wastes on their conversion to hydrogen by heat-shock digested sludge

Cited by 252 publications

References 15 publications

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

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

Bio-hydrogen production from thin stillage using conventional and acclimatized anaerobic digester sludge

Biological hydrogen production from sterilized sewage sludge by anaerobic self-fermentation

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