Anaerobic co-digestion of acetate-rich with lignin-rich wastewater and the effect of hydrotalcite addition

Rodriguez-Chiang, Lourdes; Llorca, Jordi; Dahl, Olli

doi:10.1016/j.biortech.2016.06.074

Cited by 16 publications

(11 citation statements)

References 32 publications

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“…However, the yield remained lower than that obtained with nickel based LDH. Recently, three LDH (FeMg−Al, ZnMg−Al and FeZnMg−Al) have been tested in the anaerobic digestion of synthetic sulfate‐containing wastewater in order to evaluate their effect on the methane production ,. An enhancement of CH 4 production was observed in the presence of the FeZnMg−Al LDH.…”

Section: Applications Of Bacteria@ldh Assembliesmentioning

confidence: 99%

“…Indeed, Rodriguez‐Chiang et al . report that microbial growth was higher in all samples containing LDH compared to the control samples with no LDH . Moreover, it was also suggested that during the fermentation processes, metals (Ni 2+ , Mg 2+ or Fe 2 +, Zn 2+ ) were released from the LDH layers under acidic conditions and those cations may boost the enzymatic activities.…”

Section: Applications Of Bacteria@ldh Assembliesmentioning

confidence: 99%

See 1 more Smart Citation

Interactions between Biological Cells and Layered Double Hydroxides: Towards Functional Materials

Forano

Bruna

Mousty

et al. 2018

The Chemical Record

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This review highlights the current research on the interactions between biological cells and Layered Double Hydroxides (LDH). The as-prepared biohybrid materials appear extremely attractive in diverse fields of application relating to health care, environment and energy production. We describe how thanks to the main features of biological cells and LDH layers, various strategies of assemblies can be carried out for constructing smart biofunctional materials. The interactions between the two components are described with a peculiar attention to the adsorption, biocompatibilization, LDH layer internalization, antifouling and antimicrobial properties. The most significant achievements including authors' results, involving biological cells and LDH assemblies in waste water treatment, bioremediation and bioenergy generation are specifically addressed.

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Section: Applications Of Bacteria@ldh Assembliesmentioning

confidence: 99%

Section: Applications Of Bacteria@ldh Assembliesmentioning

confidence: 99%

Interactions between Biological Cells and Layered Double Hydroxides: Towards Functional Materials

Forano

Bruna

Mousty

et al. 2018

The Chemical Record

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“…a, b, c and n are the molar content of the substrate for hydrogen, oxygen, nitrogen and carbon, respectively. Where TBMP L is the theoretical biochemical methane potential for liquid substrate (NLCH 4 KgVS -1 ), 0.35 NL is the theoretical CH 4 yield of 1 g COD at STP [19], VS is the volatile solids of the substrate (kg L -1 ) and OM is the organic matter concentration, in terms of COD (gO 2 L -1 ).…”

Section: Methodsmentioning

confidence: 99%

Use of lignocellulosic residue from second-generation ethanol production to enhance methane production through co-digestion

Volpi

Brenelli

Mockaitis

et al. 2021

Preprint

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This work evaluated the methane (CH4) production potential from residues of integrated 1st (vinasse and filter cake) and 2nd (deacetylation pretreatment liquor from straw) generation (1G2G) sugarcane biorefinery. The small-scale study provided fundamentals for basing the optimization of co-digestion by assessing the best co-substrates synergistic conditions. Biochemical Methane Potential (BMP) tests showed co-digestion enhanced CH4 yield of isolated substrates, reaching 618 NmLCH4 gVS-1, and all of the experiments were well describe by modified Gompertz model. Vinasse and deacetylation liquor as the only co-substrates increased the BMP by 36.75%, indicating that the association of these two residues provided positive effects for co-digestion by nutritionaly benefeting the methanogenic activity. The filter cake had the lowest BMP (260 NmLCH4 gVS-1) and digestibility (<40%), being the stirring required to improve the mass transfer of biochemical reactions. The alkaline characteristic of the liquor (pH-12) prevented alkalinizers from being added to the co-digestion, which could be a relevant economic advantage for the implementation of the process in an industrial scale. The co-digestion system has proven to efficiently maximize waste management in the 1G2G sugarcane biorefineries and potentially enhance their energy generation (by at least in 18%), providing experimental elements for placing the biogas production as the hub of the bioeconomy in the agroindustrial sector.

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“…Genomic DNA was extracted from biomass samples collected from both reactors at the beginning of the experiments (day 0), then on days 5,8,12,15,22,33,36,50, 57 and 68, and at the end of the experiments (day 75). DNA was extracted from the samples by the following steps: 0.1 g of biomass was washed in sodium phosphate buffer (0.1 M; pH 8.0) and pelleted by centrifugation.…”

Section: Dna Extractionmentioning

confidence: 99%

“…It is well documented that the presence of a lignin fraction, especially a low molecular fraction of this substance, induces methanogenic toxicity and inhibits bacterial growth [21]. Rodriguez-Chiang et al [22] evaluated the methane potential and biodegradability of acetate and lignin-rich pulp mill effluent at different ratios using mesophilic anaerobic sludge as inoculum. They found a negative linear correlation between lignin content and methane yield.…”

Section: Biogas/methane Productionmentioning

confidence: 99%

Effect of Individual Components of Lignocellulosic Biomass on Methane Production and Methanogen Community Structure

Pokój

Klimiuk

Bułkowska

et al. 2018

Waste Biomass Valor

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One of the major factors that influences the economic feasibility of biogas production is the availability of digestible feedstocks. There is little research on the influence of the chemical composition of biomass on biogas synthesis, especially with regard to the content of lignocellulosic materials. Therefore, the aim of this study was to estimate how differences in the content of cellulose and lignin in lignocellulosic biomass influence the concentrations of individual volatile fatty acids (VFAs) and biogas production. Additionally, the structure of the methanogenic community was examined. The removal of fibrous and non-fibrous materials, the concentrations of individual VFAs, methane production and methanogen community structure were examined during digestion of Zea mays L. and Miscanthus sacchariflorus silages. Organics were removed with higher efficiency during the digestion of Z. mays silage than during digestion of M. sacchariflorus. This was due to the higher non-fibrous carbohydrates content in Z. mays than in M. sacchariflorus. In both digesters, propionate predominated throughout experiment. The methanogenic community in the digester fed with Z. mays was more diverse than that in the digester with M. sacchariflorus. Analysis of 16S rRNA sequences showed that six acetoclastic and four hydrogenotrophic methanogens were present in the digester fed with Z. mays L., while five acetoclastic and three hydrogenotrophic methanogens were in the digester fed with M. sacchariflorus. The abundance of Methanosarcina correlated significantly with the concentration of all analyzed VFAs.Keywords Crop silage · Anaerobic digestion · Syntrophic volatile fatty acids oxidation · Archaeal community structure · Methane yield Statement of NoveltyTo introduce novel biomass types for biogas production, an integrated evaluation approach has to be applied. The present study delivers a combination of technological and microbial data about the process of anaerobic digestion of the commonly used substrates Zea mays L. silage and Miscanthus sacchariflorus silage, the latter of which has a high content of lignin and cellulose. The correlations between the abundance of methanogenic microorganisms and the concentrations of individual VFAs produced during digestion of these substrates were estimated. The results reveal novel associations between the type of substrate used, the rate of methane production and the structure of the methanogenic community. The use of materials with a high lignin content limits biodiversity in the anaerobic digesters, which can result in decreases in anaerobic digestion performance and biogas production.

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Anaerobic co-digestion of acetate-rich with lignin-rich wastewater and the effect of hydrotalcite addition

Cited by 16 publications

References 32 publications

Interactions between Biological Cells and Layered Double Hydroxides: Towards Functional Materials

Interactions between Biological Cells and Layered Double Hydroxides: Towards Functional Materials

Use of lignocellulosic residue from second-generation ethanol production to enhance methane production through co-digestion

Effect of Individual Components of Lignocellulosic Biomass on Methane Production and Methanogen Community Structure

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