Anaerobic digestion of glucose with separated acid production and methane formation

Cohen, A.; Zoetemeyer, R. J.; Deursen, A. van; Andel, J. van

doi:10.1016/0043-1354(79)90003-4

Cited by 177 publications

(53 citation statements)

References 10 publications

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“…Cohen et al (1979) obtained an average COD conversion to hydrogen of 12% while working with glucose as the substrate (10 g/L, pH 6, 308C, 10 h HRT).…”

Section: Comparison Of the Performance Of The Two-stage System At 10 mentioning

confidence: 99%

Performance characteristics of a two‐stage dark fermentative system producing hydrogen and methane continuously

Kyazze

Dinsdale

Guwy

et al. 2007

Biotech & Bioengineering

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The performance of a mesophilic two-stage system generating hydrogen and methane continuously from sucrose (10-30 g/L) was investigated. A hydrogen-generating CSTR followed by an upflow anaerobic filter were both inoculated with anaerobically digested sewage sludge, and ORP, pH, gas output, %H(2), %CH(4) and %CO(2) monitored. pH was controlled with NaOH, KOH or Ca(OH)(2). Using NaOH as alkali with 10 g/L sucrose, yields of 1.62 +/- 0.2 mol H(2)/mol hexose added and 323 mL CH(4)/gCOD added to the hydrogen and methane reactors respectively were achieved. The overall chemical oxygen demand (COD) reduction was 92.6% with 0.90 +/- 0.1 g/L sodium and 316 +/- 40 mg/L residual acetate in the methane reactor. Operation at 20 g/L sucrose and NaOH as alkali led to impaired volatile fatty acid (VFA) degradation in the methane reactor with 2.23 +/- 0.2 g/L sodium, 1,885 mg/L residual acetate, a hydrogen yield of 1.47 +/- 0.1 mol/mol hexose added, a methane yield of 294 mL/gCOD added and an overall COD reduction of 83%. Using Ca(OH)(2) as alkali with 20 g/L sucrose gave a hydrogen yield of 1.29 +/- 0.3 mol/mol hexose added, a methane yield of 337 mL/gCOD added and improved the overall COD reduction to 91% with residual acetate concentrations of 522 +/- 87 mg/L. Operation at 30 g/L sucrose with Ca(OH)(2) gave poorer overall COD reduction (68%), a hydrogen yield of 1.47 +/- 0.2 mol/mol hexose added, a methane yield of 138 mL/gCOD added and residual acetate 7,343 +/- 715 mg/L. It was shown that sodium toxicity and overloading are important issues for successful anaerobic digestion of effluent from biohydrogen reactors in high rate systems.

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“…Cohen et al (1979) obtained an average COD conversion to hydrogen of 12% while working with glucose as the substrate (10 g/L, pH 6, 308C, 10 h HRT).…”

Section: Comparison Of the Performance Of The Two-stage System At 10 mentioning

confidence: 99%

Performance characteristics of a two‐stage dark fermentative system producing hydrogen and methane continuously

Kyazze

Dinsdale

Guwy

et al. 2007

Biotech & Bioengineering

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“…The potential benefits of two-phase separation in comparison with the conventional one-phase process can be summarized as follows (Cohen et al, 1979). 1) Optimization: The possibility of maintaining optimal environmental condition for each group of organisms and concomitantly increasing the rate of substrate turnover which may allow a reduction in total reactor volume.…”

Section: Methanogenic Unitmentioning

confidence: 99%

Laboratory studies on the anaerobic sequencing batch reactor

Sung¹,

Dague²

1995

Water Environment Research

136

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“…5 enhanced lactic acid bacteria. Sludge retention or sludge recirculation however leads to the build-up of a microbiota which produces volatile fatty acids.…”

Section: Methodsmentioning

confidence: 98%

Lactate and ethanol as intermediates in two‐phase anaerobic digestion

Pipyn

Verstraete

1981

Biotech & Bioengineering

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SummaryThe thermodynamics of the various anaerobic digestion patterns of hexose to methane are compared. It appears that by directing the hexose-hydrolysis phase towards ethanol and lactic acid production, methanogenesis can be enhanced because the syntrophic bacteria are allocated more potentially available energy. This hypothesis was confirmed in a series of laboratory test runs. They revealed that lactic acid and ethanol as intermediates, in comparison to lower volatile fatty acids, give rise to a considerably higher effluent quality and a slightly larger biogas production.

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Anaerobic digestion of glucose with separated acid production and methane formation

Cited by 177 publications

References 10 publications

Performance characteristics of a two‐stage dark fermentative system producing hydrogen and methane continuously

Performance characteristics of a two‐stage dark fermentative system producing hydrogen and methane continuously

Laboratory studies on the anaerobic sequencing batch reactor

Lactate and ethanol as intermediates in two‐phase anaerobic digestion

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