Management of scrap computer recycling in Taiwan

Lee, Ching-Hwa; Chang, Ssu-Li; Wang, King-Min; Wen, Lih-Chyi

doi:10.1016/s0304-3894(99)00191-0

Cited by 111 publications

(64 citation statements)

References 1 publication

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“…Notebooks, monitors, hard disks, power supplies, printed circuit boards (PCBs), and mainframe shells are among the computer items that can be recycled (Lee et al 2000). The integrated circuit (IC) board (i.e., a printed circuit board mounted with various integrated circuits and other electronic parts) is an important computer part that is generally made from a copper-clad laminate consisting mainly of 15% epoxy resin, 30% glass cloth filament, 22% copper coils, various metals (Sn, Pb, Fe, Ni, etc.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of exhaust gas, liquid products, and residues of printed circuit boards using the pyrolysis process

Chiang

2009

Environ Sci Pollut Res

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Brominated and chlorinated compounds-i.e., dichloromethane, trans-1,2 dichloroethylene, cis-1,2 dichloroethylene, 1,1,1-trichloroethane, tetrachloromethane, bromophenol, and bromoform-could be high, up to the several parts per million (ppm) level. Low molecular weight volatile organic compounds (VOCs)-i.e., methanol, acetone, ethyl acetate, acrylonitrile, 1-butene, propene, propane, and n-butane-contributed a large fraction of VOCs. The concentrations of toluene, benzene, xylene, ethylbenzene, and styrene were in the ppm range.

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Section: Introductionmentioning

confidence: 99%

Characteristics of exhaust gas, liquid products, and residues of printed circuit boards using the pyrolysis process

Chiang

2009

Environ Sci Pollut Res

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“…In recent years, electrochemical and biochemical recovery methods have also been investigated; however, to date, none have been economically feasible. 3,6,7 The aim of the present study is to develop a process for recovering valuable metals using a physical pretreatment followed by chemical treatments to extract Au, Ag, and other valuable metals. Previous research used CN and strong acids that are environmentally harmful, and most of the experiments were very complicated because of the many solvents required to separate the various complexes.…”

Section: Introductionmentioning

confidence: 99%

Selective Leaching of Valuable Metals from Waste Printed Circuit Boards

Lee

Yang

et al. 2003

Journal of the Air & Waste Management Association

175

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This study was carried out to recover valuable metals from the printed circuit boards (PCBs) of waste computers. PCB samples were crushed to smaller than 1 mm by a shredder and initially separated into 30% conducting and 70% nonconducting materials by an electrostatic separator. The conducting materials, which contained the valuable metals, were then used as the feed material for magnetic separation, where it was found that 42% of the conducting materials were magnetic and 58% were nonmagnetic. Leaching of the nonmagnetic component using 2 M H 2 SO 4 and 0.2 M H 2 O 2 at 85°C for 12 hr resulted in greater than 95% extraction of Cu, Fe, Zn, Ni, and Al. Au and Ag were extracted at 40°C with a leaching solution of 0.2 M (NH 4 ) 2 S 2 O 3 , 0.02 M CuSO 4 , and 0.4 M NH 4 OH, which resulted in recovery of more than 95% of the Au within 48 hr and 100% of the Ag within 24 hr. The residues were next reacted with a 2 M NaCl solution to leach out Pb, which took place within 2 hr at room temperature.

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“…Collection at retail outlets is the primary measure facilitating end-of-life product returns from end-customers [106]. Similar phenomena exist in Asia (e.g., Japan, South Korea, and Taiwan), where retailers play the key role of e-waste collectors, even though producers bear the major responsibility of e-waste collection and recycling [107]. In Japan, FCEP branders favor establishing their own reverse channels with contracted retailers to facilitate end-of-life product returns from end-customers, controlling recycled-material input quality for green manufacturing, and optimizing recyclability by greener designs [12].…”

Section: Tppi-driven Political and Social Powers Vs Interdependencementioning

confidence: 87%

“…Additionally, the dramatic rise in demonstrations by green communities and the government's synchronal adoption of green policies and regulations have push firms, including producers and retailers, to face squarely the joint responsibility for improvements in e-waste collection and recycling in Taiwan [146,161]. Under TPPI, the island-wide scrap-computer collection points mainly consist of computer retailers have been widely allocated to deal with end-of-life FCEP collection and provide consumers with money on the spot for returning end-of-life computers [107]. As the aforementioned TPPI context fits the problem background and focus of this work, using data from Taiwan is suitable.…”

Section: Sampling and Survey Data Analysismentioning

confidence: 99%

Green Supply Chain Collaboration for Fashionable Consumer Electronics Products under Third-Party Power Intervention—A Resource Dependence Perspective

Sheu

2014

Sustainability

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Under third-party power intervention (TPPI), which increases uncertainty in task environments, complex channel power interplays and restructuring are indispensable among green supply chain members as they move toward sustainable collaborative relationships for increased viability and competitive advantage. From the resource dependence perspective, this work presents a novel conceptual model to investigate the influence of political and social power on channel power restructuring and induced green supply chain collaboration in brander-retailer bidirectional green supply chains of fashionable consumer electronics products (FCEPs). An FCEP refers to the consumer electronics product (e.g., personal computers, mobile phones, computer notebooks, and game consoles) with the features of a well-known brand associated, a short product lifecycle, timely and fashionable design fit for market trends, and quick responsiveness to the variations of market demands. The proposed model is tested empirically using questionnaire data obtained from retailers in the FCEP brander-retailer distribution channels. Analytical results reveal that as an extension of political and social power, TPPI positively affects the reciprocal interdependence of dyadic members and reduces power asymmetry, thereby enhancing the collaborative relationship of dyadic members and leading to improved green supply chain performance. Therein, reciprocal interdependence underlying collaborative relationship is the key to reducing the external environmental uncertainties in the TPPI context.

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Management of scrap computer recycling in Taiwan

Cited by 111 publications

References 1 publication

Characteristics of exhaust gas, liquid products, and residues of printed circuit boards using the pyrolysis process

Characteristics of exhaust gas, liquid products, and residues of printed circuit boards using the pyrolysis process

Selective Leaching of Valuable Metals from Waste Printed Circuit Boards

Green Supply Chain Collaboration for Fashionable Consumer Electronics Products under Third-Party Power Intervention—A Resource Dependence Perspective

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