• 자원리싸이클링
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• 제12권1호
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• pp.65-74
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• 2003

As new functional electronics are being developed fast, the commercialization rate of advanced battery as a power source proceeds rapidly. Lithium battery is satisfying the needs of high-energy source for its lightness and good electrochemical property. Especially lithium ion battery, adopted as a new power source for portable electronic equipments around the globe, has been mass-produced. Under the circumstance, the generation of lithium battery wastes is becoming a new environmental problem. In this paper, we are going to inspect technology developments for recycling of lithium battery wastes and scraps in domestic and foreign area, and to suggest how to treat domestic lithium battery wastes and scraps better.

• 반도체디스플레이기술학회지
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• 제16권3호
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• pp.20-24
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• 2017

For process improvement and cutting down on expenses in solar cell industry, it is necessary to improve recycling process of wafer manufacturing. In this research, a study is introduced to develop classifier which is for recycling of abrasive. First of all, recycling process of wafer manufacturing is analyzed. And then, 3 steps of experiments such as oil removal, impurities removal and classification were executed. For the classification of slurry, a classifier is designed and manufactured. From experiments, it is verified that ultra sound vibration and flux are very important factors for classification. By experiencing the recycling processes and making devices, the technique can be initiated industry if needed such as decreasing waste and cutting down on expenses.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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• pp.281-285
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• 2001

This technology Provides an economical Production of high value added goods applicable to electro chemicals by recycling of waste products in EGL(Electro Galvanizing Line). The waste products produced in EGL contain potassium chloride (KCI), nickel and zinc. Highly pure KCI and Zinc Chloride which are raw material of electro plating, can be produced by the development of the recycling process. The scope of this study ranges from laboratory experiments to pilot test in plant. We have developed the whole process of recycling technology such as purification method of waste products, fabrication methods of electro chemicals, basic design of plant, pilot scale production and evaluation of pilot goods, Developed electro chemicals were pure enough to satisfy the specification of steel company.

• 자원리싸이클링
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• 제19권1호
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• pp.49-56
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• 2010

이 논문은 폐기물의 전략적 원류관리와 재활용률 향상에 기여하는 것이 목적이며 이를 위한 기술정보의 분석 도출과 개선방안 제시에 중점을 둔다. 특히 인센티브 기반의 폐기물 재활용 시스템, RFID(Radio Frequency Identification)를 이용한 폐기물 자동수거 관리시스템, 폐기물 정보관리시스템 중심으로 관련기술동향과 국내외 특허, 해외연구사례를 분석한다. 논문은 기술, 정책, 연구동향, 검토분석, 결론으로 구성된다.

• 자원리싸이클링
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• 제24권1호
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• pp.43-50
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• 2015

본 연구에서는 국내외 자료를 광범위하게 분석하여 기저귀 재활용의 사업화 타당성을 조사하였다. 네덜란드의 Knowaste사는 사용후 기저귀에 포함되어 있는 펄프와 합성수지를 분리하여 펄프와 플라스틱, 고분자 흡수물질 (Super Absorbing Polymer: SAP)로 분리하는 재활용 기술로 사업을 하고 있다. 반면 국내에서 사업화가 진행되고 있는 기술은 사용전 기저귀 공정 스크랩중의 펄프와 합성수지, SAP 등이 혼합된 상태로 고형연료, 컨테이너 적재용 보드, 자동차 시트 등의 제품을 생산하는 재활용에 국한되어 있다. 국내의 사용후 기저귀 재활용 경제성 분석에 관한 선행 연구 결과는 서로 상반되는 결론을 내고 있지만 본 연구에서는 사용전 기저귀 폐기물은 상당한 경제적 타당성을 확보하고 있음을 알 수 있었다. 따라서, 사용전 기저귀를 포함한 폐기저귀 재활용 기술 개발과 정책적 지원을 통하여 '지속가능한 사회 구축'에 한발 더 근접할 수 있을 것이다.

• 자원리싸이클링
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• 제15권3호
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• pp.3-19
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• 2006

본 연구에서는 우리나라 미이용 자원의 유효이용 즉, 리싸이클링의 동향을 조사하기에 앞서 다양한 자원의 전체현황을 파악하려고 노력하였다. 그러기 위해서 자원수급의 세계적인 추세를 논하였고, 우리나라와 비교 검토하기 위해서 일본의 주요금속의 머티리얼 흐름을 조사하였다. 끝으로 우리나라 금속자원, 에너지자원 및 광물자원의 수급동향을 탐색, 고찰하였다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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• pp.252-256
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• 2001

The rapid development of communication equipment and information processing technology has led to a constant improvement in cordless communication. Lithium ion batteries used in cellular phones and laptop computers, in particular, have been in the forefront of the above revolution. These batteries use high value added raw materials and have a high and stable energy output and are increasingly coming into common use. The development of the material for the negative terminal has led to an improvement in the quality and efficiency of the batteries, whereas a reduction in the cost of the battery by researching new materials for the positive anode has become a research theme by itself. These long life batteries, it is being increasingly realized, can have value added to them by recycling. Research is increasingly being done on recycling the aluminum case and the load casing for the negative diode. This paper aims to introduce the current situation of recycling of lithium ion batteries. 1. Introduction 2. Various types of batteries and the situation of their recycling and the facts regarding recycling. 3. Example of cobalt recycling from waste Lithium ion secondary cell. 3-1) Flow Chart of Lithium ion battery recycling 3-2) Materials that make a lithium ion secondary cell. 3-3) Coarse grinding of Lithium ion secondary cell, and stabilization of current discharge 3-4) Burning 3-5) Grinding 3-6) Magnetic Separation 3-7) Dry sieving 3-8) Dry Classifying 3-9) Content Ratio of recycled cobalt parts 3-10) Summary of the Line used for the recovery of Cobalt from waste Lithium ion battery. 4. Conclusion.

• 자원리싸이클링
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• 제22권4호
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• pp.22-32
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• 2013

유리소재는 금속과는 다른 세라믹의 특성 때문에 오랜 기간 인류가 지속적으로 사용한 소재로서, 현대에 산업이 고도화되면서 유리소재도 고도화되어 스마트 유리가 개발되어 사용되고 있다. 스마트 유리는 주로 디스플레이, 반도체 등에서 사용되고 있는 고기능성 첨단유리 제품으로, 사용 후 유리 발생량이 계속 증가하고 있는 추세이며 2012년의 경우 적어도 60,000톤 이상의 폐기물이 발생한 것으로 추정된다. 본 고에서는 국내 스마트 유리산업 및 재활용 현황을 살펴보고, 국내의 재활용기술과 향후 전망에 대해 요약 소개하고자 한다.

• 한국환경과학회지
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• 제16권3호
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• pp.385-392
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• 2007

Currently, portable equipment for recycling of waste asphalt concrete (ASCON) has been used. However, any air pollution control devices are not attached in the simple portable one. Thus, a lot of air pollutants have been produced from recycling processes of waste ASCON which resulted from aging of paved roads or repavement of roads. This study deals with a preliminary result of concentration analysis of air pollutants obtained from a pilot and a real recycling processes of waste ASCON using simple portable recycling equipment. Air pollutants were taken from 4 steps of the pilot recycling process including an initial heating by liquid petroleum gas (LPG), intermediate heating and melting (H&M) process, final H&M process, and pavement processes using recycled ASCON at the recycling site. Also, air pollutants were taken front 4 steps of the real recycling processes including an initial H&M, final H&M and mixing, loading of recycled ASCON to dump trucks, and at the recycling site after leaving the loaded dump trucks for real pavement sites. The air pollutants measured in this study include volatile organic compounds (VOCs), aldehydes, particulate matter (PM: PM1, PM2.5, PM7, PM10, TSP (total suspended particulate)). The identified concentrations of VOCs increased with increasing time or degree for H&M of waste ASCON. In particular, very high concentrations of the VOCs at the status of complete melting, which is exposed to the air, of the waste ASCON just before paving tv the recycled ASCON at the recycling site. Also, considerable amount of VOCs were identified from the recycling equipment after the dump trucks leaded by recycled ASCON leaved the recycling site for the pavement sites. The relative level of formaldehyde exceeded 80% of the aldehydes Identified in the recycling processes. This is because the waste ASCON is exposed to direct flame of LPG during H&M processes. The PM concentrations measured in the winter recycling processes, such as the loading and rotation processes of waste ASCON into/in the recycling equipment for H&M, were much higher than those in the summer ones. In particular, the concentrations of coarse particles such as PM7 and PM10 during the winter recycling were very high as compared those during the summer one.

• 자원리싸이클링
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• 제19권2호
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• pp.63-72
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• 2010

폐플라스틱 관련 재활용 기술 동향을 조사하기 위하여 특허 검색을 실시하였다. 특허 검색 테이터베이스는 국내 WIPS사의 특허 검색 사이트를 이용하였으며, 특허검색범위는 2009년 9월까지 미국, 유럽연합, 일본과 한국에서 출원 및 공개된 특허로 제한하였다. 본 연구에서는 검색된 특허의 요약문을 분석하여 최종 4,795건의 특허를 대상으로 분석하였으며, 폐플라스틱 재활용 기술동향을 연도별, 국가별, 출원인별로 분석하여 조사하였다. 일본의 특허 출원점유율은 65%으로 전체 특허의 과반수 이상을 차지하고 있었으며, 화학적 재활용 기술에 높은 출원 집중률을 보였다. 한국의 경우, 폐플라스틱 재활용 관련 특허는 물질 재활용에 집중되어 있었다.