Material flow analysis for management of waste TVs from households in urban areas of Vietnam

Tran, Ha Phuong; Schaubroeck, Thomas; Nguyen, Duc-Quang; Ha, Vinh Hung; Huynh, Trung Hai; Dewulf, Jo

doi:10.1016/j.resconrec.2018.07.031

Cited by 50 publications

(12 citation statements)

References 38 publications

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“…With respect to e-waste containing both valuable and non-valuable materials, the unwanted parts from the dismantling process in this study were foam, broken glass, rubber and plastic debris. According to the previous studies report, broken glass from CRT-TVs and desktop computers contains 25% lead, this toxic substance can then be released from the e-waste residues (Singh et al, 2019; Tran et al, 2018). In addition, there was evidence that the surface and subsurface soils in e-waste dismantling household areas in Daengyai and Banpao subdistricts were contaminated with arsenic, cadmium, copper and lead and significantly higher than those observed in non-e-waste dismantling areas (Amphalop et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

“…Screens and monitors were smashed to yield the metal frame, whereas broken glass was disposed of with the other municipal solid wastes of the community. Besides the broken glasses, the CRT contains lead (as lead oxide) at about 25%, and so the environmental impacts of the waste residue from recycling of CRTs should be of concern (Singh et al, 2019;Tran et al, 2018). Principally, MFA is based on the inflows into system equal the outflows plus changes during transformation.…”

Section: Composition Of the Materials Recovered From The Informal E-w...mentioning

confidence: 99%

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Quantification and characterization of recovered materials in the cycle of the informal household electronic waste dismantling in Buriram province, Thailand: A challenge towards sustainable management and circular economy

2022

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The numerous amount of electronic waste (e-waste) has not been managed effectively resulting informal dismantling sites are being expanded in Thailand. The government attempts to improve the efficiency of an integrated e-waste management system, but baseline data of e-waste stream in informal sectors are insufficient. This research aimed to investigate the inflow and outflow of the materials throughout the informal e-waste dismantling processes at the well-known second-largest community in Buriram province during 2017–2018. To describe the quantities of dismantled materials, a material flow analysis was performed. The overall amount of e-waste taken to the community was estimated to be in the range of 1593–12,943 tonnes year−1. Valuable materials could be recovered at more than 90% (by mass) from fans, refrigerators, washing machines, microwaves and air conditioners. The amount of e-waste residue that the local administrative organization had to handle was up to 1144 tonnes year−1. The quantitative data retrieved from this study could provide a satisfactory equation for estimating the amount of separated valuable and non-valuable materials. Recyclable materials from dismantling have an economic incentive, e-waste dismantlers in a small and large household group that can earn approximately 798 and 1262 USD month−1 income, respectively. The notable e-waste characterization and quantification of recovered materials would be useful for improving the potential circular flow of e-waste in Thailand.

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Section: Resultsmentioning

confidence: 99%

Section: Composition Of the Materials Recovered From The Informal E-w...mentioning

confidence: 99%

Quantification and characterization of recovered materials in the cycle of the informal household electronic waste dismantling in Buriram province, Thailand: A challenge towards sustainable management and circular economy

2022

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“…It quantifies the material input of the particular economic system, the change of material stocks in an economic system, and the material output to other economies and the environment in a certain time range in terms of mass [39,40], which can objectively reflect the material flow between the economic system and the environmental system, and measure the resource and environmental pressures of the economic system [41,42]. The MFA method has been widely used in resource use accounting and environmental impact accounting [16,37,[43][44][45]. The MFA was originally a tool for studying the metabolism of materials at global and national scales [46,47].…”

Section: Materials Metabolism Accountingmentioning

confidence: 99%

Path Analysis of Beijing’s Dematerialization Development Based on System Dynamics

Dai

Shan

2020

Sustainability

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Dematerialization is a phenomenon in which resource consumption and pollutant discharge decrease during economic development. In order to explore the optimal paths of Beijing’s dematerialization, this study combines material flow analysis method and the Tapio decoupling model to construct a city dematerialization evaluation model, and establishes a system dynamics model to simulate the comprehensive dematerialization levels and the dematerialization levels of eight materials under four scenarios. The results show that the key factors affecting the dematerialization levels of resource and discharge end were non-metals consumption and CO2 emissions respectively. During 2016–2030, Beijing would achieve weak decoupling state under four scenarios, but the degree of dematerialization would be different. For the comprehensive dematerialization level, during 2017–2024, an industrial restructuring (IR) scenario, which would strengthen R&D investment and optimize the industrial structure, would be the optimal choice. During 2025–2030, an environmental governance (EG) scenario, which means increasing the investment in pollution control, would bring about the best dematerialization level. There would be differences in the optimal dematerialization paths for eight materials. For example, economic sustainable degrowth (ESD) and EG scenarios would be the optimal paths for dematerialization of atmospheric pollutants in the period 2017–2021 and 2022–2030, respectively.

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“…MFA is used widely to assess resource use, material efficiency, cascade use, recycling quote, etc. at different geographical levels (national, sector, and product-level) [15][16][17][18][19][20][21]. With respect to biomass flows MFA have already been conducted for different regions and countries, e.g., biomass use within the European Union [22], Austria [23] or Switzerland [24], or wood material flow in Finland [25], France [26], Germany [27][28][29][30], or the Netherlands [31].…”

Section: Introductionmentioning

confidence: 99%

Monitoring Sustainability Effects of the Bioeconomy: A Material Flow Based Approach Using the Example of Softwood Lumber and Its Core Product Epal 1 Pallet

et al. 2020

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The transition of our current economic system towards a bioeconomy that is based on renewable materials and energy can be an important contribution but at the same time a threat to mitigate the challenges of the 21st century, such as global warming and resource depletion. To assess societal, economic, and environmental impacts associated with this transition, we propose an approach for a sustainability assessment as an integral part of a future bioeconomy monitoring concept. The assessment approach is based on material flow analyses of the bioeconomy and their core products. As a proof of applicability, the proposed assessment approach is exemplified for the material flow of softwood lumber and its core product ‘EPAL 1 pallet’. To simulate a frequent monitoring, material flow analysis and assessment of six sustainability effects are applied for the years 2010 and 2015. Since a frequent bioeconomy monitoring requires regularly updated and quality assured data, official statistics should be the major source of information. Whereas cutoff thresholds, nondisclosure of data, and high level of aggregation are major limitations of official production statistics and for material flow analysis, lack of information regarding environmental effects is the major limitation for material flow related sustainability assessment. We make suggestions on how to overcome these limitations and put our approach in to context with other ongoing monitoring activities.

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Material flow analysis for management of waste TVs from households in urban areas of Vietnam

Cited by 50 publications

References 38 publications

Quantification and characterization of recovered materials in the cycle of the informal household electronic waste dismantling in Buriram province, Thailand: A challenge towards sustainable management and circular economy

Quantification and characterization of recovered materials in the cycle of the informal household electronic waste dismantling in Buriram province, Thailand: A challenge towards sustainable management and circular economy

Path Analysis of Beijing’s Dematerialization Development Based on System Dynamics

Monitoring Sustainability Effects of the Bioeconomy: A Material Flow Based Approach Using the Example of Softwood Lumber and Its Core Product Epal 1 Pallet

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