Hydrogen production from food waste in anaerobic mesophilic and thermophilic acidogenesis

Shin, Hyungcheol; Youn, Jong Ho; Kim, Jun Seok

doi:10.1016/j.ijhydene.2003.09.011

Cited by 414 publications

(181 citation statements)

References 33 publications

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“…The dry mass of food waste was mainly composed of starch sugars, protein, fat and cellulose, which could be regarded as a suitable substrate for ethanol production. These characteristics were very similar to others that have been reported (Sakai et al 2000;Shin et al 2004;Tang et al 2008). Figure 1a shows the enzymatic digestibility index has increased from 0.73 to 0.78 after 2.5 h of enzymatic hydrolysis with the increase of glucoamylase concentration from 80 to 100 u/g food waste, and 0.1 increase of digestibility index was found when glucoamylase concentration increased further to 120 u/g food waste.…”

Section: Characteristics Of the Food Waste Mixturesupporting

confidence: 91%

Fed batch enzymatic saccharification of food waste improves the sugar concentration in the hydrolysates and eventually the ethanol fermentation by Saccharomyces cerevisiae H058

Yan

Yao

et al. 2012

Braz. arch. biol. technol.

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Section: Characteristics Of the Food Waste Mixturesupporting

confidence: 91%

Fed batch enzymatic saccharification of food waste improves the sugar concentration in the hydrolysates and eventually the ethanol fermentation by Saccharomyces cerevisiae H058

Yan

Yao

et al. 2012

Braz. arch. biol. technol.

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“…The highest practical yield of 346 mL g −1 carbohydrate was achieved by Fang et al (2006) by using rice as a source of carbohydrate (78 %), pre-treated sewage sludge as a source of Clostridium and adding a variety of nutrients. Rice waste and noodle waste has 40 % share in the total food waste produced in China (Shiwei, 2005). The noodle waste is also rich in carbohydrates, but still there is no research reported on bio-hydrogen production from noodle waste.…”

Section: Introductionmentioning

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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“…continuous culture (CSTR) studies by Shin et al, (2004) and Shin &Youn (2005) at sugar concentration of 25 g L -1 . Clearly the effects of substrate concentrations are important but higest yields (1.8 mol H 2 mol hexose -1 ) were obtained at 8 g VS/L (Shin et al, 2004). Maximum H 2 production rate and yield occurred at 8 g VSL -1 d -1 , 5 days HRT and pH 5.5 (Shin & Youn, 2005).…”

Section: Wwwintechopencommentioning

confidence: 99%

Ethanol and Hydrogen Production with Thermophilic Bactera from Sugars and Complex Biomass

Sveinsdóttir¹,

Sigurbjörnsdóttir²,

Örlygsson³

2011

Progress in Biomass and Bioenergy Production

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Hydrogen production from food waste in anaerobic mesophilic and thermophilic acidogenesis

Cited by 414 publications

References 33 publications

Fed batch enzymatic saccharification of food waste improves the sugar concentration in the hydrolysates and eventually the ethanol fermentation by Saccharomyces cerevisiae H058

Fed batch enzymatic saccharification of food waste improves the sugar concentration in the hydrolysates and eventually the ethanol fermentation by Saccharomyces cerevisiae H058

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

Ethanol and Hydrogen Production with Thermophilic Bactera from Sugars and Complex Biomass

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