Toward the scale-up of agro-food feed mixture for biogas production

Battısta, Federico; Ruggeri, Bernardo; Fino, Debora; Erriquens, F.; Rutigliano, Luigi; Mescia, Davide

doi:10.1016/j.jece.2013.09.008

Cited by 24 publications

(12 citation statements)

References 21 publications

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“…The results obtained are comparable with other studies from the literature [35][36][37][38][39][40][41]. For example Battista et al [35] determined experimentally 5.40-14.10 m 3 ·t −1 biogas produced from different samples of olive pomace.…”

Section: Biogas Potential Estimationsupporting

confidence: 89%

Respirometric Index and Biogas Potential of Different Foods and Agricultural Discarded Biomass

et al. 2016

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Abstract:The biological stability of biomass is an important parameter for treatment plant design, process control or compost use. Measuring the biological reactivity of waste with the help of indicators such as respirometric indexes (RI) becomes an important tool to prevent the significant environmental impact of biodegradable wastes in accordance with European legislation. The aim of this paper is to show the importance of the RI technique as a tool to establish further uses of biomass such as fertilizer or biogas. The respirometric process length for different types of biomass (grape marc, apple pomace and olive pomace) was quantified. Higher moisture content seemed to favor the biological activity during the respirometric experiments and shorten the length of the process. The duration of olive pomace respirometry did not exceed 3 days, while the respirometric activity of apple scraps the lasted approximately 2 days. The highest RI values were encountered for the apple pomace, 4888 mgO 2 ·kg VS −1 ·h −1 . The majority of the discarded biomasses are categorized in the third class of stability materials in the course of degradation. This technique is important to detect the biodegradability of substrates, as well as to gain insight into the quantity and generation rate of biogas produced, information that is important from an engineering management perspective.

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Section: Biogas Potential Estimationsupporting

confidence: 89%

Respirometric Index and Biogas Potential of Different Foods and Agricultural Discarded Biomass

et al. 2016

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“…In fact, even if it was already remarked that the national biogas production is concentrated in North Italy, and in particular in Lombardia, Veneto, and Emilia Romagna (Figure 1), Tables 1 and 2 show that agricultural and animal farm activities are very strong in the Central and South regions of Italy, with a consequent by-products production which can be exploited by biorefinery for biogas production. Southern Italian regions are leaders in unique agriculture products, which are exported around the world, such as extra virgin olive oil [42] and citrus productions [43].…”

Section: Future Feedstocksmentioning

confidence: 99%

“…The cultivation of olive trees and olive oil extraction are mainly concentrated in southern Italy, especially in Puglia where it was estimated to be located about the 40% of the national olive oil production. Battista et al [42] realized a study for biogas production on a pilot reactor working in continuous mode with a feed represented by 75% v/v of olive oil byproducts and 25% v/v by cheese whey. The daily biogas was of 1.4 L/L day for a potential annual production of 55 GJ.…”

Section: Future Feedstocksmentioning

confidence: 99%

“…Although these encouraging estimations, the effective biogas production in Central and South Italy is far from the North Italy situation, where there is already an adequate level of valorisation of the agro-wastes byproducts. Instead, in the southern and central Italian regions the major part of the substrates remain unused in the better cases, and often are simply disposed of on the soil or burned in the open air with negative consequences on human health and increasing contamination of the air, soil and aquifers [42].…”

Section: Future Feedstocksmentioning

confidence: 99%

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Energy and Nutrients’ Recovery in Anaerobic Digestion of Agricultural Biomass: An Italian Perspective for Future Applications

2019

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Anaerobic digestion (AD) is the most adopted biotechnology for the valorization of agricultural biomass into valuable products like biogas and digestate, a renewable fertilizer. This paper illustrates in the first part the actual situation of the anaerobic digestion sector in Italy, including the number of plants, their geographical distribution, the installed power and the typical feedstock used. In the second part, a future perspective, independent of the actual incentive scheme, is presented. It emerged that Italy is the second European country for the number of anaerobic digestion plants with more than 1500 units for a total electricity production of about 1400 MWel. More than 60% of them are in the range of 200 kW–1 MW installed power. Almost 70% of the plants are located in the northern part of the Country where intensive agriculture and husbandry are applied. Most of the plants are now using energy crops in the feedstock. The future perspectives of the biogas sector in Italy will necessarily consider a shift from power generation to biomethane production, and an enlargement of the portfolio of possible feedstocks, the recovery of nutrients from digestate in a concentrated form, and the expansion of the AD sector to southern regions. Power to gas and biobased products will complete the future scenario.

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“…Whereas kitchen waste is any substance raw or cooked which is discharged or remains after [5], cattle dung is black-greenish material that passes out of the rumen of herbivores after feeding on grass and other materials [6]. It was reported that digestion of kitchen waste as single substrate yielded 27 % of gas [7] yet cattle dung as single substrate yielded 17.9 % [8]. There are variations in quantities of gas formed when single or mixed substrates are digested [9].…”

Section: Introductionmentioning

confidence: 99%

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2018

AJC

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Biogas is anaerobic degradation product formed from aqueous slurry of organic waste in a digester. It can be produced from cattle dung, (cd)chicken droppings, decaying leaves, kitchen waste foods, (kwf), sewage sludge, slaughter house, goat, pig or sheep manure, Aqueous slurry of 200 g/L of mixed or single substrate of cattle dung or/and kitchen waste evolved up to 400mL of biogas at ambient temperatures. The rate of gas evolution reached 5 mL/day on the 15 th day using 25 % cd mixed slurry. The overall rates of degradation attained in the mixtures were 1.42 + 0.26 mL/g for cd; 1.58+0.33 mL/g for kwf; 1.78+ 0.38 mL/g for 75 % cd mixed substrate; 1.78+ 0.29 mL/g for 50 % cd mixed substrate; 1.92+ 0.21 mL/g for 25 % cd mixed substrate slurries in the 200 g/L load. The comparative rate of biogas formation ranged from1.25 to 1.35 which was in agreement with the range published in literature of 0.8 to 5.5. Biogas can be synthesized efficiently at ambient temperature in Kampala as was done at mesophilic temperatures elsewhere. However, it may be necessary to attempt producing biogas at different pH and temperatures as well as using other substrates and inoculums.

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Toward the scale-up of agro-food feed mixture for biogas production

Cited by 24 publications

References 21 publications

Respirometric Index and Biogas Potential of Different Foods and Agricultural Discarded Biomass

Respirometric Index and Biogas Potential of Different Foods and Agricultural Discarded Biomass

Energy and Nutrients’ Recovery in Anaerobic Digestion of Agricultural Biomass: An Italian Perspective for Future Applications

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