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

Xiao, Benyi; Liu, Junxin

doi:10.1016/j.jhazmat.2009.02.008

Cited by 82 publications

(41 citation statements)

References 31 publications

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“…Hydrogen is an intermediary metabolite of anaerobic digestion, which is rapidly taken up and converted to other products by the hydrogen consuming microorganisms in the third stage of anaerobic digestion [9].…”

Section: Introductionmentioning

confidence: 99%

Biohydrogen Production by Anaerobic Fermentation of Sewage Sludge - Effect of Initial pH

Şentürk¹,

Büyükgüngör²

2017

eer

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The aim of this study is to investigate the usability of sewage sludge, a waste from waste water treatment facility, at constant temperature and different pH conditions in the hydrogen production by dark fermentation. It was understood from the results that hydrogen production varies according to the characterization of activated sludge. In the experiments performed at different pH values (pH 4-8) at 35°C, maximum hydrogen production was achieved within the first 24 hours. Except for one performed at pH 8, hydrogen gas release was observed at other pH values within 2 hours. However, according to the results obtained at the 24th hour, maximum hydrogen production (2489 mL/m 3 H 2 ) was observed at pH 8.

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Section: Introductionmentioning

confidence: 99%

Biohydrogen Production by Anaerobic Fermentation of Sewage Sludge - Effect of Initial pH

Şentürk¹,

Büyükgüngör²

2017

eer

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“…The highest concentrations of SCOD (3353 mg/l), SC (422 mg/l), NH 4 + -N (1001 mg/l), and TVFAs (1249 mg/l) were obtained for the 60 min pretreated sludge. This data implies that organic matters in sewage sludge were released from microbial cells, and subsequently these insoluble solid organics are converted into soluble substances [15]. Compared to an initial SCOD concentration of 1725 mg/l in untreated sewage sludge, SCOD concentration in pretreated sludge's increased 1.2 to 1.9-fold with different sterilization times.…”

Section: A Characteristics Of the Untreated Or Pretreated Sludgementioning

confidence: 89%

“…Kang et al [30] reported a significant increase in fermentative hydrogen production during the fermentation of pretreated (heat or alkaline) sludge. Xiao and Liu [15] reported the maximum hydrogen yields of sterilized sludge and raw sludge by anaerobic self-fermentation as 16.26 ml H 2 /g-VS and 0.35 ml H 2 /g-VS, respectively. Contrastingly, those yields [15] were markedly lower than the results obtained in this study from the pretreated sludge's (16.8-25.5 ml H 2 /g-VS) and untreated sludge (3.9 ml H 2 /g-VS) using mixed cultures.…”

Section: Effect Of Untreated or Pretreated Sludge On Fermentative mentioning

confidence: 99%

“…Xiao and Liu [15] reported the maximum hydrogen yields of sterilized sludge and raw sludge by anaerobic self-fermentation as 16.26 ml H 2 /g-VS and 0.35 ml H 2 /g-VS, respectively. Contrastingly, those yields [15] were markedly lower than the results obtained in this study from the pretreated sludge's (16.8-25.5 ml H 2 /g-VS) and untreated sludge (3.9 ml H 2 /g-VS) using mixed cultures. This phenomenon may be attributed to higher biomass used in cultivation of mixed cultures in this study [31], [32].…”

Section: Effect Of Untreated or Pretreated Sludge On Fermentative mentioning

confidence: 99%

“…For example, Massanet-Nicolau et al [3] found that pretreatment of sewage sludge by heat (70°C) and enzyme prior to fermentation significantly boosted the hydrogen yield. Xiao and Liu [15] demonstrated sewage sludge sterilization at 121°C consistently improved hydrogen production; hydrogen consumption still occurred in anaerobic self-fermentation of imperfectly sterilized sludge due to existence of other hydrogen-consuming bacteria.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Organic Solids Disintegration and Fermentative Hydrogen Production by Pretreated Sludge Generated from Wastewater Treatment Plant

Kim¹,

Oh²,

Rakwal³

et al. 2013

IJESD

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Abstract-This study examines fermentative hydrogen production from untreated (raw) sludge and pretreated sludge by sterilization treatment (15, 30, 45, and 60 min) as substrate using mixed cultures in batch experiments under anaerobic thermophilic conditions. Longer treatment time was found to be highly effective for hydrolyzing organic matters in the sludge. Soluble chemical oxygen demand (SCOD) of pretreated sludge was 1.2 to 1.9-fold higher than that of untreated sludge. Sterilization treatment was found to accelerate and increase hydrogen production throughout the batch mode, but with no measurable methane production. Pretreated (30 min) sludge presented an optimal condition, resulting in maximum hydrogen yield (25.1 ml H 2 /g-VS) and the highest hydrogen content (60.0%). Under the same conditions, enhanced hydrogen yield was 6.4-fold higher, which came with an additional benefit of efficient VS removal over the use of untreated sludge. This was attributed to destruction of solids in sludge during the solubilization process. Present findings have potential practical use in not only processes for efficient hydrogen production via anaerobic fermentation but also in waste treatment.

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Impact of Treatment Strategies on Biohydrogen Production from Waste‐Activated Sludge Fermentation

Kulkarni¹,

Dhanyashree²,

Varma³

et al. 2023

Materials for Hydrogen Production, Conversion, and Storage

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

Cited by 82 publications

References 31 publications

Biohydrogen Production by Anaerobic Fermentation of Sewage Sludge - Effect of Initial pH

Biohydrogen Production by Anaerobic Fermentation of Sewage Sludge - Effect of Initial pH

Simultaneous Organic Solids Disintegration and Fermentative Hydrogen Production by Pretreated Sludge Generated from Wastewater Treatment Plant

Impact of Treatment Strategies on Biohydrogen Production from Waste‐Activated Sludge Fermentation

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