Resource usage of integrated Pig–Biogas–Fish system: Partitioning and substitution within attributional life cycle assessment

Nhu, Thuy Trang; Dewulf, Jo; Serruys, Pieterjan; Huysveld, Sophie; Nguyen, Cong Trang; Sorgeloos, Patrick; Schaubroeck, Thomas

doi:10.1016/j.resconrec.2015.06.011

Cited by 32 publications

(10 citation statements)

References 26 publications

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“…These 532 case studies resulted from a further refinement which excluded 91 articles that either did not apply full LCA or were not environmental LCA studies. Concerning the multifunctional case studies retrieved from the literature, we observed that specific parts of the bioeconomy namely agriculture (63 case studies), bioenergy (185), bio-based materials (52) and anaerobic digestion (21), were the ones most affected by the issue of multifunctionality together with related sectors namely aquaculture (14), dairy and meat products (79), fossil counterparts (34) and waste management (50). These sectors together represented 94% of the 532 case studies identified by the query.…”

Section: Methodsmentioning

confidence: 99%

Reviewing ISO Compliant Multifunctionality Practices in Environmental Life Cycle Modeling

et al. 2020

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The standard ISO 14044:2006 defines the hierarchical steps to follow when solving multifunctionality issues in life cycle assessment (LCA). However, the practical implementation of such a hierarchy has been debated for twenty-five years leading to different implementation practices from LCA practitioners. The first part of this study discussed the main steps where the ISO hierarchy has been implemented differently and explored current multifunctionality practices in peer-reviewed studies. A text-mining process was applied to quantitatively assess such practices in the 532 multifunctional case studies found in the literature. In the second part of the study, citation network analysis (CNA) was used to identify the major publications that influenced the development of the multifunctionality-debate in LCA, i.e., the key-route main path. The identified publications were then reviewed to detect the origins of the different practices and their underlying theories. Based on these insights, this study provided some “food for thought” on current practices to move towards consistent methodology. We believe that such an advancement is urgently needed for better positioning LCA as a tool for sustainability decision-making. In particular, consistent allocation practices could be especially beneficial in bioeconomy sectors, where production processes are usually multifunctional, and where current allocation practices are not harmonized yet.

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Section: Methodsmentioning

confidence: 99%

Reviewing ISO Compliant Multifunctionality Practices in Environmental Life Cycle Modeling

et al. 2020

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“…In 25% of cases, farmers use digestate as a fertilizer for vegetable and home-garden, which is a very popular way because of its simplicity and convenience for the farmers. Study also showed that usage of digestate for fish feeding is still not adopted in this area, as none of the respondents used digestate for such purpose even though its benefits were proven in the study by [39] focused on pig-biogas-fish systems.…”

Section: Digestatementioning

confidence: 96%

Biogas Quality across Small-Scale Biogas Plants: A Case of Central Vietnam

et al. 2018

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Production of bioenergy by the fermentation reaction is gaining attraction due to its easy operation and the wide feedstock selection. Anaerobic fermentation of organic waste materials is generally considered a cost-effective and proven technology, allowing simultaneous waste management and energy production. Small-scale biogas plants are widely and increasingly used to transform waste into gas through anaerobic fermentation of organic materials in the developing world. In this research, the quality of biogas produced in small-scale biogas plants was evaluated, as it has a direct effect on its use (as fuel for biogas cookers), as well as being able to influence a decision making process over purchasing such technology. Biogas composition was measured with a multifunctional portable gas analyser at 107 small-scale biogas plants. Complementary data at household level were collected via the questionnaire survey with the owners of biogas plants (n = 107). The average daily biogas production equals 0.499 m 3 , not covering the demand of rural households which are using other sources of energy as well. Related to the biogas composition, the mean content of methane (CH 4) was 65.44% and carbon dioxide (CO 2) was 29.31% in the case of biogas plants younger than five years; and CH 4 was 64.57% and CO 2 was 29.93% for biogas plants older than five years. Focusing on the age of small-scale biogas plants there are no, or only minor, differences among tested values. In conclusion, the small-scale biogas plants are sustaining a stable level of biogas quality during their lifespan .

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“…Usually digestates are applied to agricultural land where they return organic carbon back to the soil [203,204] and replace mineral N, P, K fertilizers achieving similar crop and grassland yield levels [205,206]. Fertilizer use of digestates is also possible in aquaculture [207] and microalgae cultivation [117,202,208]. Alternatively, digestates are considered for obtaining biochemicals such as chitin [209] or fiber [210].…”

Section: Coupling Anaerobic Digestion With Other Production Systems Omentioning

confidence: 99%

The Future Agricultural Biogas Plant in Germany: A Vision

et al. 2019

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After nearly two decades of subsidized and energy crop-oriented development, agricultural biogas production in Germany is standing at a crossroads. Fundamental challenges need to be met. In this article we sketch a vision of a future agricultural biogas plant that is an integral part of the circular bioeconomy and works mainly on the base of residues. It is flexible with regard to feedstocks, digester operation, microbial communities and biogas output. It is modular in design and its operation is knowledge-based, information-driven and largely automated. It will be competitive with fossil energies and other renewable energies, profitable for farmers and plant operators and favorable for the national economy. In this paper we discuss the required contribution of research to achieve these aims.

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Resource usage of integrated Pig–Biogas–Fish system: Partitioning and substitution within attributional life cycle assessment

Cited by 32 publications

References 26 publications

Reviewing ISO Compliant Multifunctionality Practices in Environmental Life Cycle Modeling

Reviewing ISO Compliant Multifunctionality Practices in Environmental Life Cycle Modeling

Biogas Quality across Small-Scale Biogas Plants: A Case of Central Vietnam

The Future Agricultural Biogas Plant in Germany: A Vision

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