Emergy and greenhouse gas assessment of a sustainable, integrated agricultural model (SIAM) for plant, animal and biogas production: Analysis of the ecological recycle of wastes

Wu, Xihui; Wu, Faqi; Tong, Xiaogang; Wu, Jianbing; Sun, Lu; Xiao-yu, Peng

doi:10.1016/j.resconrec.2015.01.010

Cited by 41 publications

(13 citation statements)

References 43 publications

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“…Many countries believe that the development of CEMIPB is an important measure to solve these problems (Chen et al 2010). In accordance with the concept of the circular economy, the CEMIPB uses material recycling technology, transforming the traditional linear production model of "resources-products-discharge" into a circular production model of "resources-products-renewable resources-renewable products" (Wu et al 2015). The models have obvious natural resource attributes.…”

Section: Introductionmentioning

confidence: 99%

“…Since then, the theory of emergy has provided a scientific method combining ecology and economics and has become an important means to evaluate the value of natural resources and social economy (Pan et al 2019). Wu et al (2015) evaluated a CEMIPB in northwest China by using emergy, and the results showed that the circular economy model was more conducive to improving resource utilization efficiency and reducing local environmental pressure than the traditional model. Luo et al (2017) used emergy to analyze the CEMIPB in Changting, Fujian Province, and proposed ways to improve the CEMIPB.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation and optimization of a circular economy model integrating planting and breeding based on the coupling of emergy analysis and life cycle assessment

Wang¹,

Zhang²,

Tian³

et al. 2021

Environ Sci Pollut Res

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The sustainable development of agriculture is facing problems such as high resource consumption and serious environmental pollution. The development of circular economy model integrating planting and breeding (CEMIPB) has become an effective way to realize the sustainable development of agriculture. However, due to the large regional differences of circular models, references and comparability are generally lacking. Therefore, exploring economic benefit level and sustainability of CEMIPB through an effective evaluation model is necessary. Accordingly, this paper builds a methodological system for model evaluation and optimization based on the EM-LCA model and validates it with a typical CEMIPB in Fujian Province, China. By comparing the results of the EM-LCA and EMA models, the former effectively compensates for the deficiencies of the latter in terms of economic and environmental impact assessment, and the evaluation results can better reflect the actual situation of the system. Furthermore, sensitivity analysis is introduced to identify key processes and substances. Based on the reduce-reuse-recycle principle, several optimization suggestions, such as the corn and veterinary drugs, input reduction are put forward.The construction of the above methodology system can provide a new perspective for research in similar fields and provide a scientific basis for local government decision-making.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation and optimization of a circular economy model integrating planting and breeding based on the coupling of emergy analysis and life cycle assessment

Wang¹,

Zhang²,

Tian³

et al. 2021

Environ Sci Pollut Res

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“…Emergy theory has been established for more than 20 years. Its research fields include eco-economic systems of different scales, such as urban or regional ecosystems (Campbell and Garmestani, 2012;Liu, Gengyuan et al, 2015), agricultural ecosystems (Rydberg and Haden, 2006;Wu et al, 2015), eco-industrial parks (Pan et al, 2016a;Fang et al, 2017), industrial systems (Pan et al, 2016b;Santagata et al, 2019) and so on. However, there are few studies on the sustainability of waste LABs recovery systems based on emergy.…”

Section: Introductionmentioning

confidence: 99%

Emergy based sustainability evaluation of spent lead acid batteries recycling

Yang

Jiang

et al. 2020

Journal of Cleaner Production

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The sustainable evaluation of the lead acid batteries recycling process helps to quantitatively analyse the true value of resources, the environment and the economy, and provides recommendations for improving process sustainability. However, the environmental impact of pollutants hasn't been considered in the traditional emergy indicators. To this end, an improved emergy analysis method is proposed to evaluate the efficiency and sustainability of the lead acid batteries recovery process system. Firstly, the ecological effects of pollutant emissions are converted to equivalent waste emergy using the dilution method, the eco-indicator 99 method and the land erosion method. Then, the waste emergy and product emergy are included in the emergy index system, and improved emergy indices are put forward. In addition, in order to assess the system's resource recovery rate and clean production level, technical efficiency and environmental performance indicators have been increased. Finally, according to the evaluation results of emergy indicators, provide improvement measures for the optimisation system. To verify the feasibility of the proposed method, a sustainable evaluation of the recycling process system is applied. And the results show that pollutant emissions reduce the effectiveness and sustainability of the system. This method more truly reflects the overall performance of the system, compared with the traditional emergy method. The proposed method can be utilized as an effective tool for sustainable evaluation and optimisation of lead acid batteries recovery process system.

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“…Several studies on sustainability concerned the benefits of co-production. They revealed that integrated systems are more efficient using natural resources and energy [8]- [11]. Co-production allows reusing waste generated during the production process and creates new value-added products.…”

Section: Introductionmentioning

confidence: 99%

Linear Activity Analysis of Production for Closed-Loop Businesses—Case Study of a Hungarian Apple Juice Factory

Hartung¹

2016

JSS

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In the context of closed-loop and integrated production systems Koopmans linear activity analysis of production provides a relevant method for decision makers. The benefit of the method is to consider alternative production technologies at a time and model multiple material flows (inputs and outputs, including waste/pollutants) as well. In this paper Koopmans theory is proposed for modeling the reduction of waste in closed loop production processes. The method of linear activity analysis provides flexibility to measure the amount of waste by setting limiting constraints justifying the purpose of the model. Based on these features the method can be used in the future for modeling Blue Economy type of businesses. The case study of a Hungarian apple juice factory compares the conventional/linear and the new/closed loop production model. Result in GAMS software yields notable outcomes for the closed-loop apple juice factory showing not only the reduction of waste and by-products, but the expansion of new value-added products and jobs at a profitable level.

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Emergy and greenhouse gas assessment of a sustainable, integrated agricultural model (SIAM) for plant, animal and biogas production: Analysis of the ecological recycle of wastes

Cited by 41 publications

References 43 publications

Evaluation and optimization of a circular economy model integrating planting and breeding based on the coupling of emergy analysis and life cycle assessment

Evaluation and optimization of a circular economy model integrating planting and breeding based on the coupling of emergy analysis and life cycle assessment

Emergy based sustainability evaluation of spent lead acid batteries recycling

Linear Activity Analysis of Production for Closed-Loop Businesses—Case Study of a Hungarian Apple Juice Factory

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