Co-digestion performance of organic fraction of municipal solid waste with leachate: Preliminary studies

Güven, Hüseyin; Akca, Mehmet Sadik; Iren, Erol; Keleş, Fatih; Öztürk, İzzet; Altınbaş, Mahmut

doi:10.1016/j.wasman.2017.04.039

Cited by 45 publications

(17 citation statements)

References 67 publications

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“…The BMP values of all mixtures (348–869 mL of CH 4 .g TVS −1 ) – mesophilic condition and 338–735 mL of CH 4 .g TVS -1 were higher than the ones found by Santos [ 47 ], who studied the co-digestion of fruit and vegetable wastes + pruning and weeding wastes (257.4 mL of CH 4 .g TVS −1 ). Guven et al [ 48 ] obtained specific yield of 785 mL of CH 4 .g TVS −1 in the monodigestion of OFMSW under mesophilic condition. These values were inferior in mixtures M1 and M2 (869 and 837 mL of CH 4 .g TVS −1 ) in the mesophilic condition.…”

Section: Resultsmentioning

confidence: 99%

“…ORL equal to 0.15 and 0.30 g TVS.L −1 (870 mL of CH 4 .g TVS -1 ) present BMP superior to the ones obtained by Yong et al [ 54 ] (300–580 mL of CH 4 .g TVS -1 ), Zhen et al [ 55 ] (640 mL of CH 4 .g TVS -1 ), Naran et al [ 56 ] (481 mL of CH 4 .g TVS -1 ), Koch et al [ 57 ] (330–350 mL of CH 4 .g TVS -1 ), Pavi et al [ 34 ] (164–396 mL of CH 4 .g TVS -1 ), and Guven et al [ 48 ] (110–785 mL of CH 4 .g TVS -1 ).…”

Section: Resultsmentioning

confidence: 99%

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Effects of temperature, proportion and organic loading rate on the performance of anaerobic digestion of food waste

Blasius

Contrera

Maintinguer

et al. 2020

Biotechnology Reports

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effects of temperature, proportion and organic loading rate on the performance of anaerobic digestion of food waste

Blasius

Contrera

Maintinguer

et al. 2020

Biotechnology Reports

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“…food waste or energy grass) on the reactor performance has recently been reported [ 42 , 43 ]. Moreover, the application of leachate in sewage digestion has been proposed too [ 44 ]. Our results indicate that using liquefied grass biomass (after separation from solids) might be a promising method for co-digestion with sewage.…”

Section: Resultsmentioning

confidence: 99%

From grass to gas: microbiome dynamics of grass biomass acidification under mesophilic and thermophilic temperatures

Abendroth

Simeonov²,

Peretó

et al. 2017

Biotechnol Biofuels

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BackgroundSeparating acidification and methanogenic steps in anaerobic digestion processes can help to optimize the process and contribute to producing valuable sub-products such as methane, hydrogen and organic acids. However, the full potential of this technology has not been fully explored yet. To assess the underlying fermentation process in more detail, a combination of high-throughput sequencing and proteomics on the acidification step of plant material (grass) at both mesophilic and thermophilic temperatures (37 and 55 °C, respectively) was applied for the first time.ResultsHigh-strength liquor from acidified grass biomass exhibited a low biodiversity, which differed greatly depending on temperature. It was dominated by Bacteroidetes and Firmicutes at 37 °C, and by Firmicutes and Proteobacteria at 55 °C. At the methane stage, Methanosaeta, Methanomicrobium and Methanosarcina proved to be highly sensitive to environmental changes as their abundance in the seed sludges dropped dramatically after transferring the seed sludges from the respective reactors into the experimental setup. Further, an increase in Actinobacteria coincided with reduced biogas production at the end of the experiment. Over 1700 proteins were quantified from the first cycle of acidification samples using label-free quantitative proteome analysis and searching protein databases. The most abundant proteins included an almost complete set of glycolytic enzymes indicating that the microbial population is basically engaged in the degradation and catabolism of sugars. Differences in protein abundances clearly separated samples into two clusters corresponding to culture temperature. More differentially expressed proteins were found under mesophilic (120) than thermophilic (5) conditions.ConclusionOur results are the first multi-omics characterisation of a two-stage biogas production system with separated acidification and suggest that screening approaches targeting specific taxa such as Methanosaeta, Methanomicrobium and Methanosarcina could be useful diagnostic tools as indicators of environmental changes such as temperature or oxidative stress or, as in the case of Actinobacteria, they could be used as a proxy of the gas production potential of anaerobic digesters. Metaproteome analyses only detected significant expression differences in mesophilic samples, whereas thermophilic samples showed more stable protein composition with an abundance of chaperones suggesting a role in protein stability under thermal stress.Electronic supplementary materialThe online version of this article (doi:10.1186/s13068-017-0859-0) contains supplementary material, which is available to authorized users.

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“…Anerobic codigestion of leachate has recently gained interest using different substrates, effluents and technolgies [1][2][3]. Leachates, particulary the young ones, are more and more considered as a source of energy and the most emerging reflexion in that field is associated to food waste and landfill leachates and wastewater codigestion in ordre to improve anaerobic wastewater plant efficiency and energy dependence [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Anaerobic codigestion of urban solid waste fresh leachate and domestic wastewaters: Biogas production potential and kinetic

Moujanni

Qarraey

Ouatmane

2018

Environmental Engineering Research

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The Biochemical Methane Potential (BMP) of fresh leachate and domestic wastewaters codigestion was determined by laboratory Bach Tests at 35ºC over a period of 90 d using a wide range of leachates volumetric ratios from 0% to 100%. To simulate wastewaters plant treatment step, all the ratios were first air stripped for 48 h before anaerobic incubation. The kinetic of biogas production was assessed using modified Gompertz model and exponential equation. The results obtained showed that cumulative biogas production was insignificant in the case of wastewaters monodigestion while the codigestion significantly improves the BMP. Air stripping pretreatment had positive effect on both ammonium concentration and volatiles fatty acids with reduction up to 75% and 42%, respectively. According to the Modified Gompertz model, the optimal anaerobic co-digestion conditions both in terms of maximal biogas potential, start-up period and maximum daily biogas production rate, could be achieved within large leachate volumetric ratios from 25% to 75% with a maximum BMP value of 438.42 mL/g volatile solid at 50% leachate ratio. The positive effect of codigestion was attributed to a dilution effect of chemical oxygen demand and volatile fatty acid concentrations to optimal range that was between 11.7 to 32.3 gO2/L and 2.1 to 7.4 g/L, respectively. These results suggested that the treatment of fresh leachate by their dilution and co digestion at wastewaters treatment plants could be a promising alternative for both energetic and treatment purposes.

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Co-digestion performance of organic fraction of municipal solid waste with leachate: Preliminary studies

Cited by 45 publications

References 67 publications

Effects of temperature, proportion and organic loading rate on the performance of anaerobic digestion of food waste

Effects of temperature, proportion and organic loading rate on the performance of anaerobic digestion of food waste

From grass to gas: microbiome dynamics of grass biomass acidification under mesophilic and thermophilic temperatures

Anaerobic codigestion of urban solid waste fresh leachate and domestic wastewaters: Biogas production potential and kinetic

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