Shifts of acidogenic bacterial group and biogas production by adding two industrial residues in anaerobic co-digestion with cattle manure

Silva, Guilherme Henrique da; Barros, Nathan; Santana, Larice Aparecida Rezende; Carneiro, Jailton da Costa; Otênio, Marcelo Henrique

doi:10.1080/10934529.2021.2015987

Cited by 3 publications

(4 citation statements)

References 40 publications

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“…The results differ from those reported by Comino, et al, 2012 [46], during the co-digestion of cattle slurry and cheese whey, in which values over 800 mg/L of NH 3 -N were found. This may have a relation to the type of cheese whey used and to the addition of limewater to stabilize the RCW pH [24]. The slight increase of NH 3 -N in BM and RCW biodigesters did not cause toxicity to the system since the increase of this compound did not affect methane production.…”

Section: Physicochemical Analysis Of Effluents From the Anaerobic Co-...mentioning

confidence: 99%

“…RCW samples were collected weekly, transported to the rumen microbiology laboratory, homogenized, bottled, and frozen at −20 • C. Before use, each sample was defrosted for 24 h in a refrigerator, and then kept at room temperature. The pH value was corrected with the addition of 59 mL of 4.2% limewater (Ca(OH) 2 ) for each liter of RCW to obtain a pH close to neutrality [24].…”

Section: Substratesmentioning

confidence: 99%

“…Furthermore, nd 79.9. The methodology used for the t al., [24], with adaptations. nt sample was collected and after the om the BM biodigester were collected.…”

Section: Analytical Techniquesmentioning

confidence: 99%

“…Furthermore, carbon dioxide values were (CO 2 ) 20.2; 39.7; 58.3l and 79.9. The methodology used for the chromatographic analysis was based on da Silva, et al, [24], with adaptations.…”

Section: Analytical Techniquesmentioning

confidence: 99%

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Population Dynamics of Methanogenic Archea in Co-Digestion Systems Operating Different Industrial Residues for Biogas Production

et al. 2022

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This study aimed to analyze the population dynamics of methanogenic archaea in co-digestion systems operated under different concentrations of industrial waste such as ricotta whey and brewery waste sludge in association with bovine manure. It was believed that the association of these residues from the food industry combined with bovine manure can contribute to improve the production of biogas. To identify the archaea, DNA extractions and the sequencing of the 16s rRNA gene were performed from 38 samples of influents and effluents. The results indicated that Methanosaeta and Methanosarcina were predominant in the co-digestion of ricotta cheese whey and that Methanosaeta, Methanocorpusculum, and Methanobrevibacter prevailed in the co-digestion of residual brewery sludge. The three ricotta cheese whey biodigesters demonstrated efficiency in methane production; in contrast, residual sludge of brewery biodigesters only showed efficiency in the system operated with 20% co-substrate.

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Section: Physicochemical Analysis Of Effluents From the Anaerobic Co-...mentioning

confidence: 99%

Section: Substratesmentioning

confidence: 99%

“…Furthermore, nd 79.9. The methodology used for the t al., [24], with adaptations. nt sample was collected and after the om the BM biodigester were collected.…”

Section: Analytical Techniquesmentioning

confidence: 99%

“…Furthermore, carbon dioxide values were (CO 2 ) 20.2; 39.7; 58.3l and 79.9. The methodology used for the chromatographic analysis was based on da Silva, et al, [24], with adaptations.…”

Section: Analytical Techniquesmentioning

confidence: 99%

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Population Dynamics of Methanogenic Archea in Co-Digestion Systems Operating Different Industrial Residues for Biogas Production

et al. 2022

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Enhancing biomethanation performance through co-digestion of diverse organic wastes: a comprehensive study on substrate optimization, inoculum selection, and microbial community analysis

Choudhury,

Singh,

Lalwani

et al. 2024

Environ Sci Pollut Res

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A blend of organic municipal solid waste, slaughterhouse waste, faecal sludge, and land ll leachate opted as substrates in different mix ratios to formulate a pertinent mixture for biomethanation. Individual substrates were characterized and the mix ratio was optimized with the help of the response surface methodology tool to a value of 1:1:1:1 (against a C/N ratio of 28 ± 0.769 and VFA of 2500 ± 10.53) to improve the overall performance. The optimized blend (C/N ratio: 28.6, volatile fatty acids: 2538 mg/L) was characterized for physicochemical, biological, and microbial properties and subjected to anaerobic digestion in lab-scale reactors of 1000 ml capacity with and without the addition of inoculum. The gas yield of individual substrates and blends was ascertained separately. The observed cumulative gas yield over 21 days from the non-inoculated substrates varied between 133 to 2035 ml. While the addition of external inoculation at a 5% rate (w/w) against the substrate, uplifted the minimum and maximum cumulative gas yield values to 203 ml and 3394 ml. The inoculum procured from the Defence Research and Development Organisation (DRDO) was screened beforehand considering factors such as maximizing VFA production and consumption rate, gas yield, and quality of digestate. A similar outcome related to gas yield and digestate quality was observed for the equivalent blend. The cumulative gas yield value increased from 2627 ml to 4284 ml over 21 days post-application of a similar dosage of DRDO inoculum. Analysis of the 16S rRNA gene revealed that the predominant bacterial population belonged to the Firmicutes phylum, with the majority falling within the orders Clostridiales and Lactobacillales. Ultimately, the study advocates the potential of the aforementioned blend for anaerobic co-digestion to enhance the gas yield and digestate quality.

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Valorization and Bioremediation of Digestate from Anaerobic Co-Digestion of Giant Reed (Arundo donax L.) and Cattle Wastewater Using Microalgae

Silva,

Renato,

Borges

et al. 2024

Sustainability

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Anaerobic digestion followed by microalgal cultivation is considered a promising renewable alternative for the production of biomethane with reduced effluent generation, thus lowering the environmental impact. In this arrangement, in addition to generating energy, the microalgae act by potentiating the refinement of the effluents generated via anaerobic digestion (digestates). In this study, the microalga Tetradesmus obliquus was cultivated in photobioreactors with the final digestate resulting from the co-digestion of Arundo donax L. plant biomass and cattle wastewater. The biotechnological route used was efficient, and the biogas production ranged from 50.20 to 94.69 mL gVS−1. The first-order kinetic model with variable dependence (FOMT) provided the best fit for the biogas production data. In the microalgal post-treatment, the removal values ranged from 81.5 to 93.8% for the chemical oxygen demand, 92.0 to 95.3% for NH4+-N, and 41.7 to 83.3% for PO43− after 26 days. The macromolecular composition of the algal biomass reached lipid contents ranging from 33.4 to 42.7%. Thus, the proposed process mediated by microalgae can be considered promising for the bioremediation and recovery of effluents produced by agriculture through the use of microalgal biomass for bioproduct production.

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Shifts of acidogenic bacterial group and biogas production by adding two industrial residues in anaerobic co-digestion with cattle manure

Cited by 3 publications

References 40 publications

Population Dynamics of Methanogenic Archea in Co-Digestion Systems Operating Different Industrial Residues for Biogas Production

Population Dynamics of Methanogenic Archea in Co-Digestion Systems Operating Different Industrial Residues for Biogas Production

Enhancing biomethanation performance through co-digestion of diverse organic wastes: a comprehensive study on substrate optimization, inoculum selection, and microbial community analysis

Valorization and Bioremediation of Digestate from Anaerobic Co-Digestion of Giant Reed (Arundo donax L.) and Cattle Wastewater Using Microalgae

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