Bio-sludge from the Pulp and Paper Industry as Feed for Black Soldier Fly Larvae: A Study of Critical Factors for Growth and Survival

Norgren, Robert; Björkqvist, Olof; Jönsson, Anders

doi:10.1007/s12649-019-00864-x

Cited by 17 publications

(17 citation statements)

References 9 publications

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“…PPBS from a chemical-thermomechanical pulp/ground wood pulp mill was used in the experiments. For the PPBS content of energy, protein, fat, carbohydrate, dry weight, and pH, see earlier published characterization [1]. The PPBS content of heavy metals was previously published by Norgren et al [13] (see mill E).…”

Section: Methodsmentioning

confidence: 99%

“…The PPBS content of heavy metals was previously published by Norgren et al [13] (see mill E). The reference diet was a mix of alfalfa seeds, wheat bran, and maize; for details see Norgren et al [1].…”

Section: Methodsmentioning

confidence: 99%

“…The liquid was separated from the solids by centrifugation. The experiment was carried out in specially designed polypropylene boxes as previously described [1]. One hundred and twenty grams of reference diet, untreated PPBS, and sediment from centrifuged fermented PPBS were used in control 1, control 2, and trials A and B, respectively.…”

Section: Experimental Designmentioning

confidence: 99%

“…It is low in nutrients and valuable substances, and it is therefore often incinerated or composted. From a resource efficiency and sustainability perspective, there is a need for other waste management options [1]. One option that has been suggested is using insects to convert this organic waste into protein-and fat-rich food and feed [2].…”

Section: Introductionmentioning

confidence: 99%

“…Norgren et al [1] investigated the feasibility of using PPBS as feed for BSFL. The bioconversion rate of PPBS was low, and a possible explanation for this was the low nutrient availability caused by the high content of lignocellulose.…”

Section: Introductionmentioning

confidence: 99%

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Original article: fermented pulp and paper bio-sludge as feed for black soldier fly larvae

Norgren

Jönsson

Björkqvist

2021

Biomass Conv. Bioref.

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This study evaluates the use of fermentation to increase nutrient availability in pulp and paper bio-sludge (PPBS) as feed for black soldier fly larvae (BSFL). Rearing of BSFL on fermented PPBS was carried out in a climate chamber in order to assess nutrient availability and larvae survival and growth. The PPBS used came from a chemo-thermomechanical pulp/groundwood pulp mill. The PPBS was fermented at 35 °C and 55 °C, respectively, at initial pH of 10. The effects of sediment and liquid from fermented PPBS on larvae dry weight, survival rate until the prepupae stage, bioconversion, and reduction rate of PPBS were measured. The bioconversion of the liquids (4.1–6.6%) was substantially higher than for both the sediments and untreated PPBS (≤ 0.4%). The survival rate, on the other hand, was substantially lower (26.3–30.9 %) than for the sediments and untreated PPBS (49.5–52.6%). Neither the sediments nor the liquids had significant effects on the larvae weight or on the PPBS reduction rate. The sediments had no significant effect on the survival rate or the bioconversion. This study demonstrates that fermentation dissolves a part of the PPBS and that dissolved substances in the fermentation liquid readily convert to larvae biomass. However, the bulk of the lignocellulose is not dissolved, and most of PPBS nutrients remain unavailable for growth of the larvae. Further research should focus on improved pretreatment of PPBS to increase availability of nutrients and thereby improve the feasibility of BSFL as a recycling method for PPBS.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Original article: fermented pulp and paper bio-sludge as feed for black soldier fly larvae

Norgren

Jönsson

Björkqvist

2021

Biomass Conv. Bioref.

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Polluted lignocellulose-bearing sediments as a resource for marketable goods—a review of potential technologies for biochemical and thermochemical processing and remediation

Haller

Paladino

Dupaul

et al. 2021

Clean Techn Environ Policy

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Lignocellulose-bearing sediments are legacies of the previously unregulated wastewater discharge from the pulp and paper industry, causing large quantities of toxic organic waste on the Baltic Sea floor and on the bottom of rivers and lakes. Several km2 are covered with deposits of lignocellulosic residues, typically heavily contaminated with complex mixtures of organic and inorganic pollutants, posing a serious threat to human and ecological health. The high toxicity and the large volume of the polluted material are challenges for remediation endeavours. The lignocellulosic material is also a considerable bioresource with a high energy density, and due to its quantity, it could appeal to commercialization as feedstock for various marketable goods. This study sets out to explore the potential of using this polluted material as a resource for industrial production at the same time as it is detoxified. Information about modern production methods for lignocellulosic material that can be adapted to a polluted feedstock is reviewed. Biochemical methods such as composting, anaerobic digestion, as well as, thermochemical methods, for instance, HTC, HTL, pyrolysis, gasification and torrefaction have been assessed. Potential products from lignocellulose-bearing sediment material include biochar, liquid and gaseous biofuels, growing substrate. The use of a contaminated feedstock may make the process more expensive, but the suggested methods should be seen as an alternative to remediation methods that only involve costs. Several experiments were highlighted that support the conception that combined remediation and generation of marketable goods may be an appropriate way to address polluted lignocellulose-bearing sediments. Graphic abstract

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Enhancing the bioconversion rate and end products of black soldier fly (BSF) treatment – A comprehensive review

Siddiqui,

Süfer,

Çalışkan Koç

et al. 2024

Environ Dev Sustain

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Food security remains a pressing concern in the face of an increasing world population and environmental challenges. As climate change, biodiversity loss, and water scarcity continue to impact agricultural productivity, traditional livestock farming faces limitations in meeting the growing global demand for meat and dairy products. In this context, black soldier fly larvae (BSFL) have emerged as a promising alternative for sustainable food production. BSFL possess several advantages over conventional livestock, including their rapid growth, adaptability to various organic waste substrates, and low environmental impact. Their bioconversion rate, the ability to transform organic waste into valuable products, and final product optimization are key factors that enhance their potential as a nutrient-rich protein source, fertilizer, and biofuel. This review explores strategies to enhance the bioconversion rate and improve the end products derived from BSF treatment. It highlights the benefits of using BSFL over other interventions and underscores the significance of optimizing their bioconversion rate to meet the challenges of global food security sustainably. Despite the promising prospects of BSF-derived products, consumer acceptance and regulatory hurdles remain critical aspects to address in realizing their full market potential. The utilization of BSFL as a sustainable source of food and feed can contribute to waste management, reduce environmental pollution, and address the pressing issue of food security in an environmentally responsible manner. However, there is a need for further research and innovation to ensure the safety, quality, and economic viability of BSF-based products for both animal and human consumption.

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Bio-sludge from the Pulp and Paper Industry as Feed for Black Soldier Fly Larvae: A Study of Critical Factors for Growth and Survival

Cited by 17 publications

References 9 publications

Original article: fermented pulp and paper bio-sludge as feed for black soldier fly larvae

Original article: fermented pulp and paper bio-sludge as feed for black soldier fly larvae

Polluted lignocellulose-bearing sediments as a resource for marketable goods—a review of potential technologies for biochemical and thermochemical processing and remediation

Enhancing the bioconversion rate and end products of black soldier fly (BSF) treatment – A comprehensive review

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