Green Net Value Added as a sustainability metric based on life cycle assessment: An application to Bounty® paper towel

2018 ◽  
Vol 170 ◽  
pp. 742-752 ◽  
Author(s):  
Bayou Demeke ◽  
Wesley W. Ingwersen ◽  
Annie V. Weisbrod ◽  
Manuel Ceja ◽  
Bernhard Weber
2016 ◽  
Vol 131 ◽  
pp. 509-522 ◽  
Author(s):  
Wesley Ingwersen ◽  
Maria Gausman ◽  
Annie Weisbrod ◽  
Debalina Sengupta ◽  
Seung-Jin Lee ◽  
...  

2019 ◽  
Vol 11 (8) ◽  
pp. 2361 ◽  
Author(s):  
Cagatay Tasdemir ◽  
Rado Gazo

The primary objective of this study was to validate the sustainability benchmarking tool (SBT) framework proposed by the authors in a previous study. The SBT framework is focused on benchmarking triple bottom line (TBL) sustainability through exhaustive use of lean, six-sigma, and life cycle assessment (LCA). During the validation, sustainability performance of a value-added wood products’ production line was assessed and improved through deployment of the SBT framework. Strengths and weaknesses of the system were identified within the scope of the bronze frontier maturity level of the framework and tackled through a six-step analytical and quantitative reasoning methodology. The secondary objective of the study was to document how value-added wood products industries can take advantage of natural properties of wood to become frontiers of sustainability innovation. In the end, true sustainability performance of the target facility was improved by 2.37 base points, while economic and environmental performance was increased from being a system weakness to achieving an acceptable index score benchmark of 8.41 and system strength level of 9.31, respectively. The social sustainability score increased by 2.02 base points as a function of a better gender bias ratio. The financial performance of the system improved from a 33% loss to 46.23% profit in the post-improvement state. Reductions in CO2 emissions (55.16%), energy consumption (50.31%), solid waste generation (72.03%), non-value-added-time (89.30%), and cost performance (64.77%) were other significant achievements of the study. In the end, the SBT framework was successfully validated at the facility level, and the target facility evolved into a leaner, cleaner, and more responsible version of itself. This study empirically documents how synergies between lean, sustainability, six-sigma and life cycle assessment concepts outweigh their divergences and demonstrates the viability of the SBT framework.


2020 ◽  
Vol 24 ◽  
pp. 181-193 ◽  
Author(s):  
Gabrielli Martinelli ◽  
Everton Vogel ◽  
Michel Decian ◽  
Maycon Jorge Ulisses Saraiva Farinha ◽  
Luciana Virginia Mario Bernardo ◽  
...  

2021 ◽  
Author(s):  
Aweewan Mangmeechai

Abstract There is no clear direction in the management of electrical and electronic waste products (e-waste), as there are no regulations on ways to do so. This research attempts to understand the trade-off between economic value and environmental effects of the current disposal of e-waste to find ways to optimize waste management, focusing on cellphones, television CRTs, desktop computers, and air conditioners. A Life Cycle Assessment (LCA) is a tool that can analyze various influences, e.g., environmental, costs, and value added. Under the e-waste management status quo, most household e-wastes are kept in houses because owners do not know where to discard them. In addition, informal sectors, such as domestic farmers or workers, have been involved actively for more than a decade, leading to poor management standards for both health and the environment. The logistics are inefficient because the dismantling communities and recycling industry are far apart. Most e-waste is generated, and most recycling industries are located, in the Central region (the richest areas), while the dismantling communities are located in the Northeastern region (the poorest areas). Further, LCA and LCC of e-waste are sensitive to transportation, and not all e-waste parts can be recycled within the country. High-tech mineral extraction cannot be practiced in the country, and thus, circuit boards and batteries are exported for recycling. To promote a circular economy, e-waste management regulations should be implemented and a full recycling industry should be established in the country.


2009 ◽  
Vol 68 (8-9) ◽  
pp. 2278-2284 ◽  
Author(s):  
M.A. Thomassen ◽  
M.A. Dolman ◽  
K.J. van Calker ◽  
I.J.M. de Boer

Author(s):  
Rony Prabowo ◽  
Ahmad Puji Suryanto

PT. Sekar Lima Pratama merupakan perusahaan yang bergerak pada bidang tekstil yang memiliki unit usaha finishing kain katun. Dalam identifikasi yang dilakukan perusahaan masih menghasilkan waste dan belum menjalankan proses yang ramah lingkungan. Oleh karena itu diperlukan upaya untuk mengidentifikasi waste pada proses finishing kain tenun guna menjadikan proses yang ramah lingkungan dengan pertimbangan tingkat eco  efficiency dan eco cost guna menentukan proses usulan yang ramah lingkungan. Penelitian ini meliputi langkah-langkah antara lain dengan menganalisa value stream mapping untuk mengetahui kegiatan yang memiliki value added dan yang berkategori NVA. Selanjutnya dilakukan pengukuran dampak lingkungan dengan LCA (Life Cycle Analyisis) serta selanjutnya memberikan usulan memberikan usulan proses dengan pendekatan 6R (reuse, reduce, recycle, remanufacturing, recovery dan redesign) pada proses finishing kain katun diperoleh waste yaitu in appropriate processing, defect dan waiting time. Dari hasil pengukuran Life Cycle Assessment diperoleh hasil untuk proses sebesar 248,76 pt, untuk Life Cycle Impact Assessment Damage Category Human Health sebesar 4,8813 DAILY, Damage Category Ecosystem Quality sebesar 310,000 PDF*m2yr dan untuk Damage Category Resources 1615,646 MJ surplus. Biaya eco cost sebesar Rp 608.425.018,2. Usulan proses ramah lingkungan dengan menaikkan level green manufacturing menjadi recycling dan reuse


2011 ◽  
Vol 9 (2) ◽  
pp. 125 ◽  
Author(s):  
Javier Ribal ◽  
Neus Sanjuán ◽  
Gabriela Clemente ◽  
María Loreto Fenollosa

The eco-efficiency can be defined by using the “economic value/environmental impacts” ratio. In this study the eco-efficiency of orange production in the Comunidad Valenciana was assessed. 24 scenarios of orange production were built regarding their agricultural practices. For every scenario the environmental impacts were assessed by means of Life Cycle Assessment (LCA) as well as the economic value added. The results have been referred to 1 kg oranges. The integration of the economic and environmental assessments was made through Data Envelopment Analysis (DEA). Among the scenarios scored as eco-efficient, those with organic production prevailed.


2020 ◽  
Author(s):  
Shariful Nabil ◽  
Sean McCoy ◽  
Md Kibria

<p>Development of electrochemical pathways to convert CO<sub>2</sub> into fuels and feedstock is rapidly progressing over the past decade. Here we present a comparative cradle-to-gate life cycle assessment (LCA) of one and two-step electrochemical conversion of CO<sub>2 </sub>to eight major value-added products; wherein we consider CO<sub>2</sub> capture, conversion and product separation in our process model. We measure the carbon intensity (i.e., global warming impact) of one and two-step electrochemical routes with its counterparts – thermochemical CO<sub>2</sub> utilization and fossil-fuel based conventional synthesis routes for those same products. Despite inevitable carbonate formation in one-step CO<sub>2</sub> electrolysis, this analysis reveals one-step electrosynthesis would be equally compelling (through the lens of climate benefits) as compared to two-step route. This analysis further reveals that the carbon intensity of electrosynthesis products is due to significant energy requirement for the conversion (70-80% for gas products) and product separation (40-85% for liquid products) phases. Electrochemical route is highly sensitive to the electricity emission factor and is compelling only when coupled with electricity with low emission intensity (<0.25 kg CO<sub>2</sub>e/kWh). As the technology advances, we identify the near-term products that would provide climate benefits over fossil-based routes, including syngas, ethylene and n-propanol. We further identify technological goals required for electrochemical route to be competitive, notably achieving liquid product concentration >20 wt%. It is our hope that this analysis will guide the CO<sub>2</sub> electrosynthesis community to target achieving these technological goals, such that when coupled with low-carbon electricity, electrochemical route would bring climate benefits in near future. </p>


2020 ◽  
Author(s):  
Shariful Nabil ◽  
Sean McCoy ◽  
Md Kibria

<p>Development of electrochemical pathways to convert CO<sub>2</sub> into fuels and feedstock is rapidly progressing over the past decade. Here we present a comparative cradle-to-gate life cycle assessment (LCA) of one and two-step electrochemical conversion of CO<sub>2 </sub>to eight major value-added products; wherein we consider CO<sub>2</sub> capture, conversion and product separation in our process model. We measure the carbon intensity (i.e., global warming impact) of one and two-step electrochemical routes with its counterparts – thermochemical CO<sub>2</sub> utilization and fossil-fuel based conventional synthesis routes for those same products. Despite inevitable carbonate formation in one-step CO<sub>2</sub> electrolysis, this analysis reveals one-step electrosynthesis would be equally compelling (through the lens of climate benefits) as compared to two-step route. This analysis further reveals that the carbon intensity of electrosynthesis products is due to significant energy requirement for the conversion (70-80% for gas products) and product separation (40-85% for liquid products) phases. Electrochemical route is highly sensitive to the electricity emission factor and is compelling only when coupled with electricity with low emission intensity (<0.25 kg CO<sub>2</sub>e/kWh). As the technology advances, we identify the near-term products that would provide climate benefits over fossil-based routes, including syngas, ethylene and n-propanol. We further identify technological goals required for electrochemical route to be competitive, notably achieving liquid product concentration >20 wt%. It is our hope that this analysis will guide the CO<sub>2</sub> electrosynthesis community to target achieving these technological goals, such that when coupled with low-carbon electricity, electrochemical route would bring climate benefits in near future. </p>


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