Recent Review on Biogas Production from Different Waste

Dere, A.; Kalbande, S. R.; Khambalkar, V. P.

doi:10.20546/ijcmas.2017.610.407

Cited by 7 publications

(7 citation statements)

References 3 publications

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“…The key challenge in using biogas as fuel is its low calorific value due to the presence of CO 2 . For instance, the upgraded BioCNG (around 52,000 kJ/kg) has around 2.5-fold higher calorific value than untreated biogas containing ∼55% methane (around 19,500 kJ/kg) (Dere et al, 2017). Hence, biogas upgradation is essential to make it a high-quality fuel.…”

Section: Introductionmentioning

confidence: 99%

Biogas Upgradation Through CO2 Conversion Into Acetic Acid via Microbial Electrosynthesis

2021

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Biogas is one of the promising futuristic renewable energy sources with enormous market potential. However, the presence of CO2 lowers down the calorific value of biogas. Hence, various biogas upgradation technologies are under intense investigation to increase the methane content to the desired level. This study reports on enhancing methane content in biogas through CO2 sequestration into acetic acid via microbial electrosynthesis (MES) process. The previously enriched mixed chemolithoautotrophic microbial culture dominated by Acetobacterium spp. used CO2 present in the biogas as the sole carbon source. After establishing a stable performing biocathode at a fixed cathodic potential of −1 V (vs. Ag/AgCl) through batch mode operation, biogas was fed continuously at different feed rates, viz., 0.5, 0.3, and 0.2 ml/min to the cathode chamber. The highest feed rate of 0.5 ml/min was least effective both for methane content increment (from 61 ± 3% to 86 ± 2%) and acetic acid titer (1.5 ± 0.5 g/L; 0.107 ± 0.02 g/L/d.). In comparison, the lowest flow rate of 0.2 ml/min was the most effective for the intended process (methane upgradation from 62 ± 7% to 93 ± 3% and acetic acid titer 3.4 ± 0.6 g/L produced at 0.24 ± 0.04 g/L/d rate). Both acetic acid bioproduction and biogas upgradation occurred best at an Ecell of 3.3 ± 0.35 V at the low feed rate. A maximum of 84 ± 7%, 57 ± 10% and 29 ± 2% coulombic, carbon and energetic efficiencies, respectively, were achieved in acetic acid. Cyclic voltammograms of biocathodes revealed the decrease in hydrogen evolution potential and increased bioelectrocatalysis, thereby suggesting the contribution of microbes in the process. Acetobacterium, which is known for CO2 fixation, was found to be the dominant microbial genus in biogas fed reactors. The demonstrated approach not only offers the advantage of obtaining two products, one in the bulk phase and the other in the off-gas, it also validates the applicability of the bioelectrochemical biogas upgradation technology.

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Section: Introductionmentioning

confidence: 99%

Biogas Upgradation Through CO2 Conversion Into Acetic Acid via Microbial Electrosynthesis

2021

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“…Anaerobic bio-fermentation of organic animal waste, namely poultry farming is an effective and rational way of their neutralisation, processing, and disposal in modern economic conditions, and therefore the vector of solving problems of eliminating the available and preventing further environmental pollution and ensures waste-free production, i.e., it allows increasing the quantity and improving the quality of organic fertiliser and obtaining an additional energy carrier -biogas, the main component of which is methane (Soluk et al, 2015;Dere et al, 2017;Wang et al, 2019). The use of animal by-products due to the presence of a considerable raw material potential suitable for fermentation in the agricultural sector as alternative energy sources is one of the promising, environmentally friendly and energetically profitable areas of bioenergy today, reducing the amount of pollutants released into the atmosphere (Panchuk & Shlapak, 2016;Abbasi et al, 2012;Ulusoy et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…A promising substrate to produce biogas is chicken manure, due to the increased content of organic matter and the inherent greater ability to biological decay, compared to other animal waste (Dere et al, 2017). Given this, the poultry industry is not only a producer of environmental pollution, but also a potential donor of alternative energy due to the use of organic waste biomass, which allows transforming the manure from harmful to the environment to profitable and useful related products, thereby ensuring high competitiveness and profitability of the industry, turning it into a highly efficient sector of the economy.…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Fermentation of Chicken Manure and Methods for Intensifying Methane Output

Vorobel¹,

Kaplinskyi²,

Klym³

et al. 2022

Scientific Horizons

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A considerable share in the formation of food security of the population is occupied by the poultry industry, which is one of the most economically attractive and competitive, as evidenced by the annual steady growth dynamics of the production of valuable food products – poultry meat and eggs, characterised by high nutritional value, excellent dietary and taste qualities. The increase in poultry production leads, respectively, to the intensification of production on the one hand, and on the other hand – the accumulation of waste due to an increase in the number of poultry. One of the priority areas for solving the problem of environmental safety in the poultry industry is the processing of animal by-products through enzymatic fermentation, which yields an added energy product and organic-mineral fertiliser, thereby preventing methane emissions into the atmosphere, and therefore global warming. Therefore, the search for ways to intensify the methane output from chicken manure upon anaerobic fermentation, namely by adding various substances, was the purpose of the planned study. The experiment was conducted using laboratory, analytical, and mathematical-statistical methods. According to the results of experimental studies, a positive effect of FeO, Fe2O3 was established, Basidiomycota fungal-based bio-compositions, biologics – Meganit Nirbator, Reduklin T, Reduklin Compost and a complex preparation for activating enzymatic processes in chicken manure on the processes of anaerobic bio-fermentation and growth of methane content (CH4) from chicken manure (in vitro) against the background of an increase in the pH value to 9.05-9.3 with a simultaneous lower level of carbon dioxide (CO2). Best results for increasing the volume of CH4 output from the fermented substrate, by 15.7-18.8%, was observed in variants with a complex preparation for activating enzymatic processes in chicken manure. Application of Basidiomycota fungal-based bio-composition contributes to an increase in methane emissions from the test substrate by 5.4-9.6%, and biologics – Meganit Nirbator, Reduklin T and Reduklin Compost cause an increase in the volume of this gas output, respectively, by 5.6-9.4%, 9.5-14.2%, and 7.1-12%. Adding FeO and Fe2O3 to chicken manure causes an increase in the level of CH4 emissions by 4.1-7.4% and 5.8-11.2%, respectively. Thus, the results obtained indicate the expediency of using the studied substances in the processing of chicken manure in biogas plants to intensify the methane yield, which will minimise the adverse impact of intensive management of the poultry industry on the state of the environment

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Section: Introductionmentioning

confidence: 99%

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2022

Scientific Horizons

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Журнал включено до міжнародних наукометричних баз і каталогів наукових видань: Index Copernicus; Directory of Open Access Journals (DOAJ); Open Academic Journals Index (OAJI); Google Scholar; Crossref; Національна бібліотека України імені В.І. Вернадського, AGRICOLA, CAB Abstracts and Global Health (CABI), Open Academic Journals Index, Scopus.

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Recent Review on Biogas Production from Different Waste

Cited by 7 publications

References 3 publications

Biogas Upgradation Through CO2 Conversion Into Acetic Acid via Microbial Electrosynthesis

Biogas Upgradation Through CO2 Conversion Into Acetic Acid via Microbial Electrosynthesis

Anaerobic Fermentation of Chicken Manure and Methods for Intensifying Methane Output

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