Valuation of fermentation residues from biogas stations

Vochоzka, Marek; Maroušková, Anna

doi:10.1080/15567036.2016.1273282

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…Wide-ranging observations from previous studies have established how reactor setup, operational conditions, and substrate composition influence the anaerobic digestion process and the community composition (Gaida et al 2017;Westerholm et al 2017). Vochozka and Maroušková (2017) concluded that biogas is produced based on organic substance content in substrates, but not all of the substrates are equally subjected to methane fermentation. These findings are consistent with the present results of biogas yield and substrate composition.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of microbial community composition of dairy sewage sludge, corn silage, grass straw, and fruit waste biomass for potential use in biogas production or soil enrichment

Oszust

Frąc

2018

BioRes

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The purpose of the study was to link microbial community composition and chemical properties of various biomass and their resulting digestate residues for their potential use in biogas production or soil enrichment. The order of biogas production, graded from high to low was as follows: corn silage, grass silage, fruit waste, and dairy sewage sludge. Different bacterial families were predominant in different biomass. Corn silage deteriorated as a result of long-term air exposition and may serve as an efficient feedstock substrate for anaerobic digestion. A positive role in plant biocontrol microorganisms found in grass straw residues, and reasonable biogas yield obtained from this substrate suggests the use of grass straw for biogas production and its residues to enrich the soil. Due to potential threat of introducing pathogens into the soil within fruit waste or dairy sewage sludge, or soil acidification by fruit waste repeated use in field application, this biomass should be sanitized prior to soil application. Simultaneously, low biogas yields from fruit waste and dairy sewage sludge substrates make it necessary to transform them in anaerobic digestion with more energetic co-substrates. Tested residues may deliver a robust and wide range of methanogens as inoculum for further anaerobic digestion process.

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Section: Discussionmentioning

confidence: 99%

Evaluation of microbial community composition of dairy sewage sludge, corn silage, grass straw, and fruit waste biomass for potential use in biogas production or soil enrichment

Oszust

Frąc

2018

BioRes

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“…Currently, a small part of BS is used as organic fertilizer, while most of it is directly discharged to local wastewater treatment plants, , which is expensive and entail high energy consumption. Laboratory-scale research suggested that the direct discharge of BS into the ground can fertilize the soil to some extent, but attaining the dosage controllability and enhancement capability required for application on a larger scale − is difficult, and its potential health risk remains a concern. Recently, some BS treatment systems that involve algae or bacteria cultivation have been introduced. ,,, However, many types of BS biotreatment, including fermentation, utilize a rather sluggish process that requires significant amounts of land occupancy and investment.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Reforming: A Potentially Promising Method for Treating and Utilizing Wastewater from Biogas Plants

Tao

Yan

et al. 2019

Environ. Sci. Technol.

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This study investigated catalytic reforming, which is a thermochemical process, as a pioneering method to treat biogas slurry (wastewater from biogas plants) and generate hydrogen. Experimental validation for treating biogas slurries from digested cattle manure, fish intestine, and wheat straw was performed on Ni/α-Al2O3 catalyst. The results showed that the total organic carbon, total nitrogen, and PO4 3– ion contents in biogas slurry could be reduced by 98.69, 98.01, and 99.32%, respectively. The highest hydrogen yield was obtained in the treatment of biogas slurry from digested cattle manure at 750 °C, in which the hydrogen yield and hydrogen concentration were 13.85 L hydrogen/L BS and 79.77 vol %, respectively. Changes in the crystalline phase and structure of the catalyst were observed during catalytic reforming of biogas slurry. Active metal oxidization and carbon deposition were likely to be important factors affecting catalytic stability. The mass flow evaluation verified the hydrogen generation potential by the catalytic reforming of biogas slurry, which was close to the methane generation capability of the upstream biogas plant. However, additional effort is required to address the high energy consumption of this method. These findings provide fundamental knowledge about the potential of applying thermochemical techniques to treat and utilize high total organic carbon-containing wastewaters.

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Shower cooler reduces pollutants release in production of competitive cement substitute at low cost

Maroušek

Maroušková

Kůs

2020

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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Valuation of fermentation residues from biogas stations

Cited by 3 publications

References 30 publications

Evaluation of microbial community composition of dairy sewage sludge, corn silage, grass straw, and fruit waste biomass for potential use in biogas production or soil enrichment

Evaluation of microbial community composition of dairy sewage sludge, corn silage, grass straw, and fruit waste biomass for potential use in biogas production or soil enrichment

Catalytic Reforming: A Potentially Promising Method for Treating and Utilizing Wastewater from Biogas Plants

Shower cooler reduces pollutants release in production of competitive cement substitute at low cost

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