• Resources Recycling
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• v.26 no.5
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• pp.105-111
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• 2017

In this paper, a business model for recycling of shoes that has been landfilled and incinerated despite the existence of the remaining life of shoes has been proposed. Element and framework was derived to construct a business model for shoe recycling. Based on the derived elements and framework, the business model suggested will be able to build up a new business area in the footwear industry, and it can minimize consumer's household spending and reduce environmental pollution caused by landfill and incineration.

• 한국지구물리탐사학회:학술대회논문집
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• 2003.11a
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• pp.563-568
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• 2003

Recently, the recycled amount of electric, mechanical parts, and appliances in artifacts has increased. These products use valuable rare metals such as platinum group metals and gold, which are included occasionally as additives. Rare metals are maldistributed in the world and most of them are produced in small quantities. A small amount of rare metals used in the appliances causes a large loss of rare metal resources because of the lack of an economically recycling method. The present recycling technologies including physical and chemical separation methods that are considered for recycling of electric, mechanical parts and appliances.

• Proceedings of the Korean Institute of Resources Recycling Conference
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• 2004.05a
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• pp.70-73
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• 2004

• Nuclear Engineering and Technology
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• v.43 no.4
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• pp.329-334
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• 2011

Two conceptual flowsheets were developed for recycling used nuclear fuel. One flowsheet was developed for recycling used oxide nuclear fuel from light water reactors while the other was developed for recycling used metal fuel from fast spectrum reactors. Both flowsheets were developed from a set of design principles including efficient actinide recovery, nonproliferation, waste minimization and commercial viability. Process chemistry is discussed for each unit operation in the flowsheet.

• Resources Recycling
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• v.27 no.1
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• pp.64-73
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• 2018

This study aims to analysis the environmental impact on waste catalyst recycling technology using entire life cycle assessment. Environmental impacts consist of the five categories of impacts: global warming, resource depletion, acidification, eutrophication, and photochemical oxide production. The waste catalyst recycling presently have a GWP 3.53 ton $CO_2$ equivalent/ton, a ADP 0.017 ton Sb equivalent/ton, a AP 0.051 $SO_2$ equivalent/ton, a EP 0.0092 $PO{_4}^{3-}$ equivalent/ton, a 0.0019 ton $C_2H_4$ equivalent/ton. The smelting reduction process is the greatest contributor to all categories of environmental impacts in waste catalyst recycling. Electricity used in the smelting reduction process is the major contributor of all impact categories.

• Resources Recycling
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• v.23 no.3
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• pp.71-77
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• 2014

It is believed to have the international competitiveness of the domestic petrochemical in conjunction with the production of high value-added new product and variety of application by supercritical fluid process and the reaction of infusible/insoluble plastic wastes recycling. In this article, the patents and papers for the recycling of organic residues from the plastic wastes using supercritical fluids were collected and analyzed. The open patents of USA (US), European Union (EP), Japan (JP), and Korea (KR) and SCI journals from 1993 to 2012 were investigated. The patents and journals were collected using key-words and filtered by the definition of the technology. The patents and journals were analyzed by the years, countries, companies, and technologies and the technical trends were discussed in this paper.

• Proceedings of the IEEK Conference
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• 2001.10a
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• pp.220-224
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• 2001

Waste tires are a significant problem with the increasing in number of automobiles. Therefore, many researches have been studied on this field. Recycling is the one of the popular method aspect to environmental and economical in the treatment methods of the waste tire, which loads that the reuse of scrap tire rubber has been a challenge in the past. However, it is not easy method to melt down and mold into new products because the in rubber is a cross-linked polymer. Most difficulty in recycling is the recycled product is not economic. Therefore, the goal of this study is to develop the high valuable products for reused waste tires. In this paper, we try to make an economic recycled technology using scrapped waste tires. This technology may applied for manufacturing the end products such as a rubber block and a ballast mat for high-speed train.

• Resources Recycling
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• v.25 no.6
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• pp.13-22
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• 2016

This study is aimed at compare and evaluate the environmental impact of End-of-Life Vehicle(ELV) on the eco-friendly technology dismantling and recycling system, using Life Cycle Assessment (LCA) method. In this study, it was analyzed for the environmental impacts of raw materials, disassemble process, recycle parts separation and waste treatment into the process of ELV treatment by greenhouse gas and resource consumption, etc. Through this study, the indoor rail type dismantling technology were recycling rate applied on the alternate system was increased by approximately 8%. As a result, it was 3 to 88% by improving the environmental impact category. In addition, the added benefit of approximately 8 - 62% in pre-market occurred through the recycling rate, improve parts reuse rate of ELV. Through the results of this study, legal compliance, improved reuse and recycling ratio, used parts market reach, enable exports has identified the need for the effort that the dissemination and diffusion of eco-friendly technology.

• Resources Recycling
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• v.21 no.1
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• pp.3-16
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• 2012

In order to review the technological modulus of the recycling of urban mine resources and non-ferrous smelting process in Korea, key point of recycling process, physical separation, non-ferrous smelting process, unit operation for the recycling technology, recycling process of LS-Nikko Copper and Korea Zinc were studied. Finally, metal recycling processes of the typical non-ferrous smelters in Japan such sa DOWA Holdings and JX Holdings were compared with those of LS-Nikko Copper and Korea Zinc.

• Resources Recycling
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• v.28 no.6
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• pp.9-17
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• 2019

The use of rare metals in increasing along with the growth of the Fourth industrials revolution and new energy industries, and the recycling of rare metals becomes more important as the used of rare metals increase. In this paper, the domestic and international quality standards of tin metal, one of the rare metals, and the performance test of recycled tin were investigated. As a results of the performance test, it was analyzed that there is no difference in performance between the natural and recycled tin.