Biogasification of Waste Monoethanolamine Generated in Post Combustion CO2 Capture

Botheju, Deshai; Li, Yuan; Hovland, Jon; Risberg, Trond; Haugen, Hans Aksel; Dinamarca, Carlos; Bakke, Rune

doi:10.1016/s1876-0147(10)02001-x

Cited by 7 publications

(17 citation statements)

References 4 publications

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“…They observed positive response due to oxygenation for a range of oxygenation loads (0 -16%) and also predicted the existence of an optimum oxygenation level corresponding to a maximum methane yield [46]. A few other studies also suggested that limited aeration can lead to enhanced methane generation [50,74,106]. Pirt and Lee [50] observed that traces of oxygen enhanced the anaerobic digestion of algal biomass in batch mode reactors.…”

Section: Biogas Generation and Methane Yieldmentioning

confidence: 89%

“…Further increasing the oxygen flux resulted in the washout of methanogens and accumulation of substrate. Botheju et al [106][107][108], described the use of limited aeration in AD for the treatment and bio-gasification of waste monoethanolamine (MEA) generated in post combustion CO 2 capture. Net methane generation by the degradation of waste MEA was positively influenced by the increasing oxygen loads (in the range of 0 -0.39 ml O 2 /ml reactor content).…”

Section: Biogas Generation and Methane Yieldmentioning

confidence: 99%

“…According to a study on the use of partial aeration in AD treating monoethanolamine (MEA) wastes generated in post combustion CO 2 capture, Botheju et al [106,107] indicated the possibility of enhanced methane generation from MEA wastes using partial aeration assisted AD. This observation can be explained by the MEA degradation mechanisms suggested by Ohtaguchi et al [116].…”

Section: Degradation Of Recalcitrant and Toxic Organics Using Aeratiomentioning

confidence: 99%

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Oxygen Effects in Anaerobic Digestion – A Review

Botheju¹,

Bakke²

2011

TOWMJ

Self Cite

141

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This article reviews the experimental and theoretical studies conducted on the possible effects of oxygen in biogas generating anaerobic digesters. The interactions of oxygen with various biochemical processes associated with anaerobic digestion are discussed together with other relevant aspects. The conventional perception of oxygen being merely toxic in anaerobic digestion (AD) is refuted. Digesters can withstand significant levels of oxygenation without drastic negative impacts. Limited quantities of oxygen can even lead to improved AD reactor performance under certain operating conditions. Co-existence of anaerobic and aerobic cultures in a single bioreactor environment has been demonstrated. It is shown that the partial aeration assisted AD can serve as a beneficial treatment strategy for simultaneous waste treatment and energy generation, for a multitude of organic waste categories.

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Section: Biogas Generation and Methane Yieldmentioning

confidence: 89%

Section: Biogas Generation and Methane Yieldmentioning

confidence: 99%

Section: Degradation Of Recalcitrant and Toxic Organics Using Aeratiomentioning

confidence: 99%

See 1 more Smart Citation

Oxygen Effects in Anaerobic Digestion – A Review

Botheju¹,

Bakke²

2011

TOWMJ

Self Cite

141

View full text Add to dashboard Cite

show abstract

“…A few other studies also suggested that limited aeration can lead to enhanced methane generation [ 9,10,14]. Pirt and Lee [15] reported that traces of oxygen enhanced the anaerobic digestion of algal biomass in batch mode reactors.…”

Section: Introductionmentioning

confidence: 97%

“…Previous reported literature showed that a limited aeration enhanced a lot the methane yield in anaerobic digestion [6,7,8,9,10], predicting the existence of an optimum oxygenation level corresponding to a maximum methane yield [10]. A few other studies also suggested that limited aeration can lead to enhanced methane generation [ 9,10,14].…”

Section: Introductionmentioning

confidence: 98%

Improvement by Micro-Aeration of Anaerobic Digestion of Slaughterhouse Wastewater At 38°C

Zouari¹

2015

IJIRSET

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ABSTRACT:The anaerobic digestion of slaughterhouse wastewaters, used as a model of fluids with high TSS content, was improved by application of micro-aeration of the influent. Digestibility of the total suspended solids (TSS) was improved to prevent their accumulation in the sludge and protect methanogens from their inhibition effect. This was ensured by a controlled dissolution of oxygen in the influent, prior to the anaerobic digestion, by continuous aeration with air at a rate of 15 ml/min, corresponding to 0.05 vvm (volume of air per volume of feeding solution per minute). The methane production yields were of almost 350 and 200 ml CH 4 per removed g of COD sol and COD tot , respectively. The micro-aeration of the influent also lead to application of higher organic loads to the treatment system, besides the high methane production yields. These results were obtained at 38°C, which is not common and suitable to anaerobic digestion, but appropriate for enhanced hydrolytic enzymes activities. It was clearly shown, that the improvement of methane production yields was associated to dissolution of TSS. These findings are of great importance from the practical point of view, and technically evidence the emerging idea of tolerance of low aeration in anaerobic technologies.

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Biological treatment of amine wastes generated in post combustion CO2 capture

Botheju

Hovland

et al. 2011

Energy Procedia

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Biogasification of Waste Monoethanolamine Generated in Post Combustion CO2 Capture

Cited by 7 publications

References 4 publications

Oxygen Effects in Anaerobic Digestion – A Review

Oxygen Effects in Anaerobic Digestion – A Review

Improvement by Micro-Aeration of Anaerobic Digestion of Slaughterhouse Wastewater At 38°C

Biological treatment of amine wastes generated in post combustion CO2 capture

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