Opportunities and challenges: Experimental and kinetic analysis of anaerobic co-digestion of food waste and rendering industry streams for biogas production

Bedoić, Robert; Špehar, Ana; Puljko, Josip; Čuček, Lidija; Ćosić, Boris; Pukšec, Tomislav; Duić, Neven

doi:10.1016/j.rser.2020.109951

Cited by 58 publications

(28 citation statements)

References 107 publications

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“…Biowaste from municipalities (household waste) can serve as a valuable source of biogas given the relatively high biogas yield of 100-150 m 3 /tFM [7,65,66] An experimental study by the authors of this research on using biodegradable waste from kitchens, canteens and restaurants (similar to the composition of municipal biowaste) showed the biogas yield of such material to be equal to 0.566 Nm 3 /kg TS (equal to ca. 110 m 3 /tFM), with an average methane share of 60 vol% [39]. Another previous study showed that the biogas potential of municipal biowaste in the relevant region was found to be 116 GWh [22].…”

Section: Biowaste From Municipalitiesmentioning

confidence: 95%

“…The third group of feedstocks included industry waste, co-products and by-products from crop and animal processing, as well as food and beverage manufacturing. These included wastewater sludge, fat, oil and grease, spent materials, the biodegradable fraction of industry waste and co-and by-products that cannot be used as animal feed [39]. The authors sought actual data on waste generation in the processing plants.…”

Section: Alternative Feedstocks To Maize Silagementioning

confidence: 99%

“…7 was the only one in this case that operated without using maize silage. The plant was designed to operate using biodegradable waste from canteens, restaurants and kitchens in a two-stage mesophilic process [39]. Landfill plant no.…”

Section: Biogas Plants In Northern Croatiamentioning

confidence: 99%

“…The highest methane yield was found for meat and bone meal (272.6 ± 11.2 m 3 (CH 4 )/tFM). Since such a substrate was studied in previous research by the corresponding author [39], it was determined that in the present biogas production, MBM could not be used as a monosubstrate, owing to the high share of nitrogen, but rather as a co-substrate to municipal biowaste. In this sense, it was found that MBM did not interrupt the stability of the process if it added up to 5% of the TS share, which corresponded to 1% of the total FM share.…”

Section: Biodegradable Streams From the Food-processing Industrymentioning

confidence: 99%

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Geospatial Analysis and Environmental Impact Assessment of a Holistic and Interdisciplinary Approach to the Biogas Sector

et al. 2021

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Crop-based biogas energy production, in combination with electricity generation under subsidy schemes, is no longer considered a favourable business model for biogas plants. Switching to low-cost or gate fee feedstocks and utilising biogas via alternative pathways could contribute to making existing plants fit for future operations and could open up new space for further expansion of the biogas sector. The aim of this study was to combine a holistic and interdisciplinary approach for both the biogas production side and the utilisation side to evaluate the impact of integrating the biogas sector with waste management systems and energy systems operating with a high share of renewable energy sources. The geospatial availability of residue materials from agriculture, industry and municipalities was assessed using QGIS software for the case of Northern Croatia with the goal of replacing maize silage in the operation of existing biogas plants. Furthermore, the analysis included positioning new biogas plants, which would produce renewable gas. The overall approach was evaluated through life cycle assessment using SimaPro software to quantify the environmental benefits and identify the bottlenecks of the implemented actions. The results showed that the given feedstocks could replace 212 GWh of biogas from maize silage in the relevant region and create an additional 191 GWh of biomethane in new plants. The LCA revealed that the proposed measures would contribute to the decarbonisation of natural gas by creating environmental benefits that are 36 times greater compared to a business-as-usual concept. The presented approach could be of interest to stakeholders in the biogas sector anywhere in the world to encourage further integration of biogas technologies into energy and environmental transitions.

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Section: Biowaste From Municipalitiesmentioning

confidence: 95%

Section: Alternative Feedstocks To Maize Silagementioning

confidence: 99%

Section: Biogas Plants In Northern Croatiamentioning

confidence: 99%

Section: Biodegradable Streams From the Food-processing Industrymentioning

confidence: 99%

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Geospatial Analysis and Environmental Impact Assessment of a Holistic and Interdisciplinary Approach to the Biogas Sector

et al. 2021

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“…Due to rich nutrition, FW is also considered as a typical "misplaced" renewable resource (Bedoić et al, 2020). High water content and high carbohydrate ratio make FW an ideal substrate for anaerobic digestion (AD) to produce methane (Yue et al, 2020;Zhang et al, 2020a).…”

Section: Introductionmentioning

confidence: 99%

Effect of Iron Supplementation On The Biogas Production and Microbial Community Distribution During Anaerobic Digestion of Food Waste Process

Xu¹,

Zhang²,

Liu³

et al. 2021

Preprint

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Iron as micronutrients is of great significance for forming a stable and efficient anaerobic digestion of food waste. Aim of this study was to examine the effect of iron supplementation on the mesophilic anaerobic digestion of food waste. Firstly, batch experiments were conducted with different iron concentration at a constant kitchen waste/inoculum ratio (K/I = 1.0), which indicated that the effect of iron on anaerobic digestion of was strictly dosage-dependent. Then, anaerobic digestion of food waste was conducted for 50 days in semi-continuous rectors with optimal iron concentration (2.0mg /L) under the same conditions. And the semi-continuous rectors obtained a good operation performance with low volatile fatty acids concentration, higher biogas production, high coenzyme F420 and dehydrogenase concentrations. Furthermore, two samples taken on 7th day and 50th day were analyzed by high-throughput sequencing, which illustrated that the composition anaerobe community was stable. However, the growth and activity of several syntrophic microbial groups (Aminobacterium, Syntrophomonas, Anaerolineaceae, Methanosaeta, Methanosarcina, Methanobacterium and Methanospirillum), were stimulated by iron supplementation. The shift of microbial community suggested that a high-efficiency microbial community for methane production from food waste was formed by iron supplementation.

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Microbial Biogas Production

Muñiz‐Márquez,

Cano‐Gómez,

Wong‐Paz

et al. 2023

Microbial Bioreactors for Industrial Molecules

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Opportunities and challenges: Experimental and kinetic analysis of anaerobic co-digestion of food waste and rendering industry streams for biogas production

Cited by 58 publications

References 107 publications

Geospatial Analysis and Environmental Impact Assessment of a Holistic and Interdisciplinary Approach to the Biogas Sector

Geospatial Analysis and Environmental Impact Assessment of a Holistic and Interdisciplinary Approach to the Biogas Sector

Effect of Iron Supplementation On The Biogas Production and Microbial Community Distribution During Anaerobic Digestion of Food Waste Process

Microbial Biogas Production

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