Environmental life cycle assessment of nano-cellulose and biogas production from manure

Krexner, Theresa; Bauer, Alexander; Zollitsch, Werner; Weiland, Kathrin; Bismarck, Alexander; Mautner, Andreas; Medel-Jiménez, Francisco; Gronauer, Andreas; Kral, Iris

doi:10.1016/j.jenvman.2022.115093

Cited by 21 publications

(14 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The exact procedure is described in Weiland et al (2021). In Krexner et al (2022), a comprehensive LCA about the environmental impacts of this novel approach (labeled as manure scenario) compared to the status quo production of NFC from wood pulp (labeled as wood chips scenario) is assessed by using a system expansion approach.…”

Section: Biosystem Engineering Case Study -Nano-cellulose and Biogas ...mentioning

confidence: 99%

“…Hence, the utilization of the system is the provision of NFC and biogas, which also leads to an extension of the functional unit with the additional benefit of biogas production, making it a multifunctional system. The avoided burden principle is not applied in this publication, since it sometimes goes along with negative results, which lack practical viability (Krexner et al, 2021).…”

Section: System Expansion Approach In the Case Studymentioning

confidence: 99%

“…The used values refer to the production of biogas and NFC in 1 year. Data of the produced biogas and NFC is based on Krexner (2020). Calculation of the mass allocation factors shows that around 75% of the inputs and outputs must be allocated to the biogas production.…”

Section: Mass Allocationmentioning

confidence: 99%

“…Therefore, the feed-in tariff for electricity from biogas plants from and 2019(BMWFW, 2018 is averaged as a representative price. Data of the produced biogas with its methane content and fermentation residue is taken from Krexner (2020). The used values refer to the production of biogas and NFC in 1 year.…”

Section: Economic Allocationmentioning

confidence: 99%

“…Furthermore, the methodological differences regarding, for example, system boundary or functional unit shall be examined. This study is partially based on the master thesis Krexner (2020) and the paper Krexner et al (2022), where a comprehensive LCA about nano-cellulose and biogas production was conducted, also covering the state of the art of LCA of nano-cellulose production. In this study, the focus lies on the different multi-output approaches.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Comparison of a system expansion and allocation approach for the handling of multi-output processes in life cycle assessment – a case study for nano-cellulose and biogas production from elephant manure

Krexner

Kral

Gronauer

et al. 2021

Die Bodenkultur: Journal of Land Management, Food and Environment

Self Cite

View full text Add to dashboard Cite

Summary The handling of multi-outputs in life cycle assessment (LCA) is a controversial topic in both LCA application practice and the literature. Although there is a prescribed hierarchy of how to deal with multi-outputs, which favors system expansion (including co-products and their upstream chains) as the most scientific solution over the allocation approach (dividing environmental impacts based on an allocation factor), the latter is still most common. In this study, system expansion, mass, economic, and energy-based allocation are studied within a biosystem engineering case study, which provides two marketable outputs, biogas and nano-cellulose. The global warming potential (GWP) is used as basis for comparison. There is hardly any difference between system expansion and economic allocation, but it is also shown how problematic the latter approach is for newly introduced products because the market price is still very high and not representative. Results show that the GWP with mass allocation has the lowest impact; however, this approach is inappropriate since the outputs are a solid product and biogas, which are hard to compare based on a mass basis. Overall, based on the studied approach, results can be significantly different. Hence, it is recommended to avoid comparison and interpretation of results when using different modeling approaches.

show abstract

Section: Biosystem Engineering Case Study -Nano-cellulose and Biogas ...mentioning

confidence: 99%

Section: System Expansion Approach In the Case Studymentioning

confidence: 99%

Section: Mass Allocationmentioning

confidence: 99%

Section: Economic Allocationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Comparison of a system expansion and allocation approach for the handling of multi-output processes in life cycle assessment – a case study for nano-cellulose and biogas production from elephant manure

Krexner

Kral

Gronauer

et al. 2021

Die Bodenkultur: Journal of Land Management, Food and Environment

Self Cite

View full text Add to dashboard Cite

show abstract

Exzellente Exkremente: Biogas und Papierprodukte aus Tierdung

Mautner

Wintner²,

Weiland

et al. 2023

Biospektrum

Self Cite

View full text Add to dashboard Cite

Growing demand for animal products caused by a growing population and improved living-standards also yields large quantities of manure constituting an eminent problem. Herbivore manure can be utilized as fertilizer or for biogas production, which, however, disregards the full potential of manure as feedstock for lignocellulosics. Thus, an integrated process combining biogas production and isolation of natural fibres next to providing fertilizer precursors would constitute a major leap forward.

show abstract

Environmental, health and safety issues of surface-modified nanocellulose and its scale-up potential

Lavoine,

Mani,

Umeileka

2024

Surface Modifications of Nanocellulose

View full text Add to dashboard Cite

Environmental life cycle assessment of nano-cellulose and biogas production from manure

Cited by 21 publications

References 18 publications

Comparison of a system expansion and allocation approach for the handling of multi-output processes in life cycle assessment – a case study for nano-cellulose and biogas production from elephant manure

Comparison of a system expansion and allocation approach for the handling of multi-output processes in life cycle assessment – a case study for nano-cellulose and biogas production from elephant manure

Exzellente Exkremente: Biogas und Papierprodukte aus Tierdung

Environmental, health and safety issues of surface-modified nanocellulose and its scale-up potential

Contact Info

Product

Resources

About