• Title/Summary/Keyword: Waste material

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ICT-based Waste Plastic Management Life Cycle Technology (ICT기반 폐플라스틱 관리 전주기 기술 동향)

  • Moon, Y.B.;Jeong, H.;Heo, T.W.
    • Electronics and Telecommunications Trends
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    • v.37 no.4
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    • pp.28-35
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    • 2022

  • To solve the challenge of waste plastics, this study investigated the related technologies and company trends along the plastic life cycle, and primarily describes ICT technologies to improve efficiency in the process of sorting and sorting waste plastics. Waste plastic discharge caused by the explosive increase in parcel traffic because of COVID-19 is also growing exponentially. Hence, waste treatment is emerging as a social challenge. Most of the domestic waste classification depends on the manual process according to the waste pollution level. The plastic material classification approach using the spectroscopy approach reveals a high error in the contaminated waste plastic classification, but if the Artificial Intelligence-based image classification technology is employed together, the classification precision can be enhanced because of the type of waste plastic product and the contaminated part can be differentiated.

  • https://doi.org/10.22648/ETRI.2022.J.370404 인용 PDF

Research on Fire Safety of Mortar-Containing Waste Tire Powders and Flame Retardant (폐타이어 분말과 난연제가 혼입된 모르타르의 화재안전에 관한 연구)

  • Park, Jeong-Jin;Son, Ki-Sang
    • Fire Science and Engineering
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    • v.24 no.4
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    • pp.12-17
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    • 2010

  • The purpose of this study is to determine how effectively waste tire recycled material mixed with flame retardant work in combating fire. As discovered in the previous study, waste tire mixed with cement mortar has more insulation capacity. However, this mortar is weak against fire. Therefore flame retardant, with a specific proportional mix, will be added to increase its fire prevention capacity. Tests will be made in accordance with ISO 5657 procedures for measuring fire ignition time, flame and shape variation of test pieces at the Building Material Test Institute. The test piece will be set up with horizontal levels having a constant radiation heat of $1{\sim}5W/cm^2$. Temperature transfers and increases from the surface into the interior. Combustible gases result due to pyrolysis, and regular contact is maintained between the fire source and the center of the test piece for assessment purposes. Ignition has not been occurred without adding retardant meaning that there is almost no possibility of ignition of waste tire particle. This fact can be considered as fire load to appreciate a volume of combustion materials. Flame is not occurred due to heat-absorbing effect by adding non-organic series retardant into waste tire particle. Conclusions have been summarized as follows; 1) Combustion of building material can be decreased by adding retardant to waste tire-mixing mortar. But compressive strength and insulation capacity of the material should be measured later. 2) Firing prevention and ignition are main points of building fire. Reasonable fire engineering assessment of interior material should be made for establishing effective disaster prevention system.

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Development of Triboelectrostatic Separation Technique for Material Separation of EVA & PET Mixture Plastic Wastes (EVA와 PET 혼합(混合) 폐플라스틱의 재질분리(材質分離)를 위한 마찰하전형(摩擦荷電形) 정전선별(靜電選別) 기술개발(技術開發))

  • Jeon, Ho-Seok;Park, Chul-Hyun;Baek, Sang-Ho;Kim, Byoung-Gon;Kim, Hyung-Seok
    • Resources Recycling
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    • v.18 no.1
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    • pp.13-21
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    • 2009

  • A research on material separation of EVA and PET mixture plastic waste using a triboelectrostatic separator has been carried out. It was found that PP was the best charging material to give the highest charge on the surface of EVA and PET mixture plastics with an opposite polarity. Therefore, a charger of pipe line type using PP material was manufactured for separation of EVA and PET mixture plastic waste. At optimum test conditions that used PP cyclone charger developed in this study, we could separate out PET with a glade of 98.7% and a recovery of 89.7%.

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