Towards Sustainable “Product and Material Flow” Cycles: Identifying Barriers to Achieving Product Multi-Use and Zero Waste

Kumar, Vishesh; Bee, Danny; Shirodkar, Prasad; Tumkor, Serdar; Bettig, Bernhard; Sutherland, John W.

doi:10.1115/imece2005-81347

Cited by 32 publications

(14 citation statements)

References 11 publications

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“…E-waste is generated from several sources which include industries, institutions, and households [29][30][31]. Some of the electronic devices have very shorter life spans and are frequently changed, thus leading to increased waste generation rates [32,33].…”

Section: E-waste Awareness and Managementmentioning

confidence: 99%

Survey on Household Awareness and Willingness to Participate in E-Waste Management in Jos, Plateau State, Nigeria

et al. 2020

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Nearly 290,000 tons of electronic waste was generated in Nigeria during the year 2017, which is likely to increase further due to high population growth rates, accelerated urbanization, high demand for electronic products, as well as disposal at their end-of-life. At the same time, e-waste is associated with negative human health impacts, as well as environmental pollution. Therefore, environmental awareness on this waste stream is crucial in its management and possible minimization. In this paper, we report on a survey which investigated awareness levels and knowledge amongst households in the Jos metropolis, Plateau State (Nigeria). We interviewed 228 respondents by means of close-ended questionnaires. The results indicated that cell phones (93%) and television sets (82%) were mentioned by most respondents. The main reasons for acquiring these electronic devices entailed the replacement of damaged ones (49.6%), frequent product upgrades (37.7%), as well as theft (35.55%), amongst others. The most predominant method of disposing e-waste included illegal dumping in open spaces along with other household wastes (25%), storing it at home indefinitely (27.6%), and selling it to others for possible reuse (17.5%). Although the handling and storage of this waste is currently inappropriate, most respondents (84.2%) were willing to participate in its management provided they are given appropriate knowledge (89.9%) on its safe disposal and recycling. Lastly, we found no significant correlation between existing awareness levels on e-waste and willingness to participate in its management based on the socio-demographical profile of respondents. Thus, we recommend educational interventions on sound e-waste management in the Jos metropolis, along with a systematic analysis of how policy interventions such as the extended producer responsibility schemes can be designed for effective e-waste management and recycling amongst all stakeholders.

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Section: E-waste Awareness and Managementmentioning

confidence: 99%

Survey on Household Awareness and Willingness to Participate in E-Waste Management in Jos, Plateau State, Nigeria

et al. 2020

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“…Until the 1980s, the problem of municipal solid waste management (MSWM) for many communities was viewed from the cost perspective hence little attention was paid to it (Bhide and Sundersand, 1983). More so, in developing countries, MSWM was partly paralyzed by the problem of insufficient public and private funds to sustain existing schemes and corrupt management systems (Gupta et al, 1998;Buenstro et al, 2001a) and also mainly due to the fact that municipal solid waste management is influenced by a complex interrelationship of political, legal, socio-cultural, environmental and economic factors as well as available resources (Kumar et al, 2005). MSW, however, constitutes a serious environmental problem with varying degrees of direct as well as indirect negative effects on the environment and its ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal contamination in soils from a municipal landfill, surrounded by banana plantation in the eastern flank of Mount Cameroon

Fonge¹,

Nkoleka²,

Asong³

et al. 2017

Afr. J. Biotechnol.

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Municipal solid waste generated in our cities, with an unprecedented population growth, has resulted in degrading environmental quality, thus a major problem for policy makers. The extent of Pb, Cu, Zn, Cd, Hg and Zn contamination in soils of the studied area, where vegetables were grown, using metal contamination factor (CF) and pollution load index were assessed. The concentrations of heavy metals studied were in the order Cu > Zn > Cd > Hg > Pb > Ni, with the highest value (in mg/kg) for Zn (14.15±0.73), Cu (14.15±1.59), Cd (6.57±1.71) and Hg (6.29±0.97) recorded in site SS1. The geoaccumulation index (Igeo) indicated that sites SS3, SS4 and SS5 were uncontaminated, moderately contaminated (1< Igeo<3) for Zn, landfill was moderately to heavily contaminated (1< Igeo<3) for Cu, Cd and for swamp only Hg. Contamination factor (CF) for soils indicated that site SS1 had a very high degree of contamination (CF > 6) for Cu and Cd while the swamp, old dumpsite and downstream had a low contamination (CF<1). The landfill area is moderately contaminated and considering the age and other anthropogenic factors, this environment may become highly polluted in future. This present work could serve as a landmark for contemporary research in ecotoxicology .

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“…While the system will of course eventually require disposal, it is important to recognise that a system may exist in more than one life cycle and therefore that a system at the end of its current life cycle does not necessarily have to be disposed. In fact, to approach the ultimate goal of zero waste, the system must exist for as long as possible, in as many life cycles as possible (Kumar et al, 2005). The Retirement Concept should therefore address more than just disposal at the end of life and must recognize, as illustrated in Figure 3, that the system may well (and ideally should) exist in a number of life cycles before reaching its end of life.…”

Section: The Retirement Stagementioning

confidence: 99%

On the Development of a Retirement Concept

Ryan

2015

INCOSE International Symp

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ISO/IEC 15288 describes a number of Technical Processes that are invoked throughout the life-cycle stages of a system. One of the concepts developed throughout the early technical processes is the Retirement Concept. This paper examines the role of retirement in the system life cycle and then differentiates between the retirement of a system at the end of each of its life cycles and the final disposal of the system at the end of its life. Three broad steps have been proposed to support design for retirement: identify the reasons for retirement, identify the potential retirement methods available, and identify the design issues that arise from the consideration of each retirement method. This paper identifies how that approach can support the development of a Retirement Concept. A simple example is offered by way of illustration.

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Towards Sustainable “Product and Material Flow” Cycles: Identifying Barriers to Achieving Product Multi-Use and Zero Waste

Cited by 32 publications

References 11 publications

Survey on Household Awareness and Willingness to Participate in E-Waste Management in Jos, Plateau State, Nigeria

Survey on Household Awareness and Willingness to Participate in E-Waste Management in Jos, Plateau State, Nigeria

Heavy metal contamination in soils from a municipal landfill, surrounded by banana plantation in the eastern flank of Mount Cameroon

On the Development of a Retirement Concept

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