Critical aspects in the life cycle assessment (LCA) of bio-based materials – Reviewing methodologies and deriving recommendations

Pawelzik, P.; Carus, Michael; Hotchkiss, J.; Narayan, Ramáni; Selke, Susan; Wellisch, Maria; Weiss, Martin; Wicke, Birka; Patel, Martin Kumar

doi:10.1016/j.resconrec.2013.02.006

Cited by 226 publications

(166 citation statements)

References 55 publications

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“…LCA methods have become a broadly applied tool for impact evaluation in the industry, and are nowadays frequently used in engineering and optimisation processes of bio-based product systems (Pawelzik et al, 2013;Swarr et al, 2011).…”

Section: Methodsmentioning

confidence: 99%

“…Apart from varied climatic settings and manure characteristics, different production techniques and process intensities have been tested. The research findings provide a detailed description on optimal production conditions and process organisation, comprising particulars, such as optimal larval stocking densities, husbandry of adults and egg harvesting techniques (Čičková et al, 2012a,b, 2013Pastor et al, 2011Pastor et al, , 2014.…”

Section: Life Cycle Inventorymentioning

confidence: 99%

See 1 more Smart Citation

Pig manure treatment with housefly (Musca domestica) rearing – an environmental life cycle assessment

Roffeis

Muys

Almeida

et al. 2015

JIFF

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The largest portion of a product's environmental impacts and costs of manufacturing and use results from decisions taken in the conceptual design phase long before its market entry. To foster sustainable production patterns, applying life cycle assessment in the early product development stage is gaining importance. Following recent scientific studies on using dipteran fly species for waste management, this paper presents an assessment of two insect-based manure treatment systems. Considering the necessity of manure treatment in regions with concentrated animal operations, reducing excess manure volumes with the means of insects presents a potentially convenient method to combine waste reduction and nutrient recovery. An analytical comparison of rearing houseflies on fresh and pretreated pig manure is reported with reference to agricultural land occupation, water and fossil depletion potential. Based on ex-ante modelled industrial scale rearing systems, the driving factors of performance and environmentally sensitive aspects of the rearing process have been assessed. Expressed per kg manure dry matter reduction, the estimated agricultural land occupation varied between 1.4 and 2.7 m 2 yr, fossil depletion potential ranged from 1.9 to 3.4 kg oil eq and the obtained water depletion potential was calculated from 36.4 to 65.6 m 3 . System improvement potential was identified for heating related energy usage and water consumption. The geographical context and the utility of the co-products, i.e. residue substrates and insect products, were determined as influential variables to the application potential of this novel manure treatment concept. The results of this study, applied at the earliest stages of the design of the process, assist evaluation of the feasibility of such a system and provide guidance for future research and development activities.

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Section: Methodsmentioning

confidence: 99%

Section: Life Cycle Inventorymentioning

confidence: 99%

Pig manure treatment with housefly (Musca domestica) rearing – an environmental life cycle assessment

Roffeis

Muys

Almeida

et al. 2015

JIFF

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“…Overall, the discussion over the sustainability of bio-based products throughout their life cycle, especially biofuels, has until now focused primarily on environmental issues [33][34][35]. In recent years, however, social and socio-economic aspects have gained increasing attention and have progressively been included in all sustainability schemes for biofuels [36].…”

Section: S-lca Applied To Bio-based Productsmentioning

confidence: 99%

Social Life Cycle Approach as a Tool for Promoting the Market Uptake of Bio-Based Products from a Consumer Perspective

Falcone

Imbert

2018

Sustainability

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Abstract:The sustainability of bio-based products, especially when compared with fossil based products, must be assured. The life cycle approach has proven to be a promising way to analyze the social, economic and environmental impacts of bio-based products along the whole value chain. Until now, however, the social aspects have been under-investigated in comparison to environmental and economic aspects. In this context, the present paper aims to identify the main social impact categories and indicators that should be included in a social sustainability assessment of bio-based products, with a focus on the consumers' category. To identify which social categories and indicators are most relevant, we carry out a literature review on existing social life cycle studies; this is followed by a focus group with industrial experts and academics. Afterwards, we conduct semi-structured interviews with some consumer representatives to understand which social indicators pertaining to consumers are perceived as relevant. Our findings highlight the necessity for the development and dissemination of improved frameworks capable of exploiting the consumers' role in the ongoing process of market uptake of bio-based products. More specifically, this need regards the effective inclusion of some social indicators (i.e., end users' health and safety, feedback mechanisms, transparency, and end-of-life responsibility) in the social life cycle assessment scheme for bio-based products. This would allow consumers, where properly communicated, to make more informed and aware purchasing choices, therefore having a flywheel effect on the market diffusion of a bio-based product.

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“…Acetic acid is an important platform chemical in the synthesis of many valuable chemicals, such as cellulose acetate, vinyl acetate, acetic acid esters, terephthalic acid, and so on. The demand for acetic acid has accelerated in recent years [12] owing to increased demand for derivatives such as the vinyl acetate monomer (VAM). Currently, acetic acid is produced primarily from non-renewable feedstock, for example, by methanol carbonylation [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…The demand for acetic acid has accelerated in recent years [12] owing to increased demand for derivatives such as the vinyl acetate monomer (VAM). Currently, acetic acid is produced primarily from non-renewable feedstock, for example, by methanol carbonylation [12,13]. Market prices of acetic acid ($1.2 kg , 2011 level).…”

Section: Introductionmentioning

confidence: 99%

Recovery of Acetic Acid from An Ethanol Fermentation Broth by Liquid-Liquid Extraction (LLE) Using Various Solvents

Pham¹,

Kim²,

Um³

2015

Korean Chemical Engineering Research

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− Liquid-liquid extraction (LLE) using various solvents was studied for recovery of acetic acid from a synthetic ethanol fermentation broth. The microbial fermentation of sugars presented in hydrolyzate gives rise to acetic acid as a byproduct. In order to obtain pure ethanol for use as a biofuel, fermentation broth should be subjected to acetic acid removal step and the recovered acetic acid can be put to industrial use. Herein, batch LLE experiments were carried out at 25°C using a synthetic fermentation broth comprising 20.0 g l -1 acetic acid and 5.0 g l -1 ethanol. Ethyl acetate (EtOAc), tri-n-octylphosphine oxide (TOPO), tri-n-octylamine (TOA), and tri-n-alkylphosphine oxide (TAPO) were utilized as solvents, and the extraction potential of each solvent was evaluated by varying the organic phase-to-aqueous phase ratios as 0.2, 0.5, 1.0, 2.0, and 4.0. The highest acetic acid extraction yield was achieved with TAPO; however, the lowest ethanol-to-acetic acid extraction ratio was obtained using TOPO. In a single-stage batch extraction, 97.0 % and 92.4 % of acetic acid could be extracted using TAPO and TOPO when the ratio of organic-to-aqueous phases is 4:1 respectively. A higher solvent-to-feed ratio resulted in an increase in the ethanol-to-acetic acid ratio, which decreased both acetic acid purity and acetic acid extraction yield.

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Critical aspects in the life cycle assessment (LCA) of bio-based materials – Reviewing methodologies and deriving recommendations

Cited by 226 publications

References 55 publications

Pig manure treatment with housefly (Musca domestica) rearing – an environmental life cycle assessment

Pig manure treatment with housefly (Musca domestica) rearing – an environmental life cycle assessment

Social Life Cycle Approach as a Tool for Promoting the Market Uptake of Bio-Based Products from a Consumer Perspective

Recovery of Acetic Acid from An Ethanol Fermentation Broth by Liquid-Liquid Extraction (LLE) Using Various Solvents

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