Biogas generation from insects breeding post production wastes

Bulak, Piotr; Proc, Kinga; Pawłowska, Małgorzata; Kasprzycka, Agnieszka; Berus, Wojciech; Bieganowski, Andrzej

doi:10.1016/j.jclepro.2019.118777

Cited by 42 publications

(28 citation statements)

References 42 publications

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“…For insect frass only produced by BSF larvae on food waste a biogas production of 576 Nm 3 /ton OM was found by Lalander et al (2018), which compares well to the 506 Nm 3 /ton OM we found ( Figure 5). Bulak et al (2020) found biogas production rates for the frass of BSF larvae raised on carrot/beetroot waste of on average 351 and 412 Nm 3 biogas/ton DM and OM respectively and 177 and 208 Nm 3 methane/ton DM and OM respectively with an average methane content of 50 %. These numbers are comparable to our data and also to those of other insect species.…”

Section: Figurementioning

confidence: 96%

Methane production from insect, worm and mushroom waste streams and combinations

Elissen

Hol

Weide

2019

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In literature, the synergistic effect of several substrates on feedstocks for anaerobic digestion/methane production is described for several substrates. Champost from mushroom production, vermicompost from worm composting/vermiculture and BSF (black soldier fly) larvae frass from insect production were therefore tested for this report for their synergistic effect. It was found that insect frass had a very high biogas/methane production as a single substrate. Addition of the frass led to a concentration dependent biogas production in mixtures with 'old' digestate higher than was expected based on the results of the single substrates. Champost resulted in some biogas production but from vermicompost hardly any biogas could be produced. Also, no synergistic or concentration effects could be noted from the latter two.

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Section: Figurementioning

confidence: 96%

Methane production from insect, worm and mushroom waste streams and combinations

Elissen

Hol

Weide

2019

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“…In an environment specialized on insect rearing, a multi-step treatment of frass could increase the efficiency of degradation. With additional downstream composting or anaerobic digestion [65,66], the recovery as soil amendment represents the economically most promising option.…”

Section: Black Soldier Fly Frass Properties Soil Quality and Plant Pmentioning

confidence: 99%

Suitability of Black Soldier Fly Frass as Soil Amendment and Implication for Organic Waste Hygienization

et al. 2020

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Because of its nutritious properties, the black soldier fly has emerged as one of the most popular species in advancing circular economy through the re-valorization of anthropogenic organic wastes to insect biomass. Black soldier fly frass accumulates as a major by-product in artificial rearing set-ups and harbors great potential to complement or replace commercial fertilizers. We applied frass from larvae raised on different diets in nitrogen-equivalent amounts as soil amendment, comparing it to NH4NO3 fertilizer as a control. While the soil properties did not reveal any difference between mineral fertilizer and frass, principal component analysis showed significant differences that are mainly attributed to nitrate and dissolved nitrogen contents. We did not find significant differences in the growth of perennial ryegrass between the treatments, indicating that frass serves as a rapidly acting fertilizer comparable to NH4NO3. While the abundance of coliform bacteria increased during frass maturation, after application to the soil, they were outcompeted by gram-negatives. We thus conclude that frass may serve as a valuable fertilizer and does not impair the hygienic properties of soils.

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“…The authors identified a methane yield of 475 mL of biogas, with an average of 67.45% methane content in biogas. Bulak et al [38] conducted research on the biogasing efficiency of mealworm waste. The process feedstock had a very low C:N value, 7.77, as well as a protein content of 31.98% and fat content of 4.13%, with the possibility of biogasing.…”

Section: Discussionmentioning

confidence: 99%

The Effect of the Addition of a Fat Emulsifier on the Amount and Quality of the Obtained Biogas

et al. 2020

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Slaughterhouse waste management is an important technological, economic, and environmental challenge. Recently, more and more attention has been paid to the possibility of obtaining biogas from waste generated by slaughterhouses. The aim of the paper was to examine the effect of an emulsifier addition in the form of a carboxymethyl cellulose solution to create animal waste fermentation media based on the quantity and quality of the generated biogas. The adopted research goal was achieved based on a laboratory experiment of methane fermenting poultry processing waste. The waste was divided into two fractions: soft (tissue) and hard (bone). A fat emulsifier in a concentration of 1%, 2.5%, 5%, and 10% of fresh weight of the substrate was added to each substrate sample made from the above fractions. The emulsifier used was a 55% carboxymethyl cellulose solution, since this emulsifier is most commonly used in food production. The experiment was conducted in order to determine how the addition of an emulsifier (55% carboxymethylcellulose solution) affects the hydration of fats during methane fermentation, as demonstrated on poultry slaughterhouse waste. The samples were subjected to static methane fermentation, according to the methodology of DIM DIN 38414(DIN Deutches Institut für Normung). The experiment lasted 30 days. The total amount of biogas obtained after fermentation was 398 mL·g−1 for the soft fraction and 402 mL·g−1 for the hard fraction. In the case of the soft waste fraction, the addition of carboxymethylcellulose at 1% of the mass to the biogas process increased the amount of obtained biogas by 16%. In the case of the hard fraction, no effect of the addition of emulsifier on the total amount of biogas obtained was identified. In each case, the biogas from substrates with added emulsifier contained less methane and slightly more carbon. The emulsifier added to the soft fraction of slaughterhouse waste from poultry processing allowed cutting the process of methanogenesis by over 50% while maintaining the efficiency of biogas production. In the case of biogasification of bone tissue, no unambiguous effect of the addition of emulsifier on the improvement of process efficiency was identified.

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Biogas generation from insects breeding post production wastes

Cited by 42 publications

References 42 publications

Methane production from insect, worm and mushroom waste streams and combinations

Methane production from insect, worm and mushroom waste streams and combinations

Suitability of Black Soldier Fly Frass as Soil Amendment and Implication for Organic Waste Hygienization

The Effect of the Addition of a Fat Emulsifier on the Amount and Quality of the Obtained Biogas

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