• Journal of the Korea Organic Resources Recycling Association
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• v.12 no.1
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• pp.94-103
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• 2004

The generation of construction waste has increased continuously in the recent years, becoming an important social issue. In this paper, the generation and treatment of construction waste in Korea was reviewed and a comparative analysis was performed between Korea and developed countries to suggest some efficient recycling strategies. The generation of construction waste has increased 4 times from 10 million ton/yr in 1996 to 40.3 million ton/yr in 2002. Of the construction waste generated in 2002, concrete debris waste occupied 60.4%. Approximately 14.5% of the construction waste is landfilled, 2,0% incinerated and 83.4% recycled, then the recycling rate might be relatively high. However, there is room for increasing landfill diversion. It is somewhat important to strenghten incentives for the outstanding recycling business. It is also needed to improve the recycled aggregate quality standard and impurity content standard. It is desirable to toughen the facility standard for the recycling aggregate business and the quality standard for the intermediate treatment business. Also, market for the intermediate product of the recycled aggregate should be activated. Finally, more recycling-oriented regulations governing the construction waste has to be developed with the efficient public education program.

• Journal of the Korea Organic Resources Recycling Association
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• v.17 no.2
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• pp.51-58
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• 2009

In this paper checked up biomass which occurs in the Jeju as are classified as organic waste for integrated management system for review and circulation of resources. Biomass which occurs in the Jeju was the 10,818 tons of sludge, 61,284 tons of food-waste, 1,519,000 tons of livestock. Sludge is treated marine discharge, food-waste is treated regeneration and livestock is treated in the form of recycling. How to establish "System used by mechanism of recycling management on biomass resources" to introduce biomass town created by Hita-city, Oita-ken in Japan. Also there established a model system to building for recycling management of biomass and then checked up the economics. According to the report, it has the difference in facilities, but it will switch to a surplus in 4 years, therefore it was confirmed that the economy. To be considered priority most livestock in "System used by mechanism of recycling management on biomass resources" in Jeju. So it is introduced the urgent problem and the problem awaiting solution on treating livestock in this study.

• Elastomers and Composites
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• v.53 no.1
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• pp.19-25
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• 2018

In this study, a new process was developed to develop the waste rubber material recycling system. Firstly, the blending of the reclaimed rubber/virgin rubber as a compounding technology was investigated in this study. Secondly, the removal of odor by using zeolite. Thirdly, the continuous crosslinking process technology was studied the technology can solve the environmentally harmful substances and economic problems. Based on this technology, we have started to develop application technologies such as floor mats and rubber sheets for forklifts, and will further study the environmentally conscious products in various ways. Our research will contribute to the recycling industry.

• Journal of Environmental Health Sciences
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• v.20 no.4
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• pp.60-71
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• 1994

The average volume of waste per a person in Korea is exceedingly higher than that of Europeans. But the social movement for the resources recycling and the environmental conservation makes the people play their part in several activities like the Separate Collection System. At the time of this agitation, Korean central government brought the Volume Based Waste Charge System into operation in some regions on a trial basis having full-scale operation nationwidely near at hand. Andong City which is one of points under trial operation had remarkble result during this term in resources recycling as well as wastes reducing. The wastes' diminution reached to 32.0 % and the resources recycling was increased by 13.7 times. The responses from the 701 housewives in Andong were also very stimulative. The neccesity of this system was judged conclusively by 91.6 % of total answerers. Also this system was considered as a successful one by 78.4 % popular support. But not little portion (53.8 %) of the answerers felt that the detail methods of this system were unconvenient. In order to take root this system in it's early stages, the Separate Collection should be carried out perfectly and systematically with top priority. And the next program should be the improvement of the detail methods in this system.

• Journal of the Korea Organic Resources Recycling Association
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• v.8 no.1
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• pp.83-89
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• 2000

There is no simple method to solve livestock waste problems satisfactorily. For a successful solution, various methods should be well organized orderly depending upon the situation. Even in the livestock waste management, integrated waste management principle should be applied. Minimization of livestock waste generation is the first priority. It is also important to distribute fairly livestock farms throughout the nation. Efficient management of permit system is equally important. Permit should be given only when the farmer have enough grass-land on which the farmer can apply more than two thirds of livestock waste generated or when the farm have an anaerobic digestor in which store livestock waste generated for at least 3 months. In principle, livestock waste should be treated in the farm and it is desirable to operate composting facilities in the farm site too.

• Resources Recycling
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• v.19 no.4
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• pp.13-18
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• 2010

Effort of reducing wastes and their recycling is increasing in worldwide. Especially, extreme care for alkali recycling is required because of its environmental pollution and its corrosive characteristics. In order to manage alkali wastes effectively, it is necessary to make quality standards for recycling products from the alkali wastes because there are no quality specifications yet. In this study, we selected several recycling candidates from the alkali wastes based on the analysis of the most recent data of the various industrial sites. As a result, the recycling candidates from the alkali wastes are sodium hydroxide, aluminum sulfate, poly aluminum chloride. It is believed that the proper management system for waste products is required in governmental point of view and it propagates positively for resolving various environmental issues.

• Journal of the Korean GEO-environmental Society
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• v.13 no.12
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• pp.75-79
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• 2012

In the recycling of industrial waste unlike household waste, the legislation and the governmental systematic support, etc. were not also established due to an anxiety of hazard or harmfulness, etc. and a preconception. So the legislation and the system should be urgently established for the recycling of industrial waste. In this study, the environmental analyzing method of industrial waste-mixed coal ash in ash pond to recycle as a construction material is suggested by considering and analyzing test process and results about environmental impact factors of mixed coal ash. It is certified that there are not environmental problems in the recycling of mixed coal ash in ash pond as a construction material, according as its classification is general waste and each corresponding item of the leaching test result are satisfied with the 'environmental safety criteria' suggested in this study. And to build database, it is necessary to survey the environmental impact on surrounding areas with time after its recycling as a construction material.

• Resources Recycling
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• v.16 no.4
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• pp.47-60
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• 2007

Plastic supply and recycling are increasingly becoming matters of social concern. In our country, Extended Producer Responsibility(EPR) system has been adopted in 2003 to expand recycle and reuse of waste resources at producer side, and due to expansion of the EPR system, amount of the mixed plastic waste generation has been drastically increased. Plastic-plastic separation is most fundamental technique to achieve effective plastic recycling. This paper reviews recent developments in plastic-plastic separation techniques and describe future tasks. The mechanisms of each separation which contain gravity separation, electrostatic separation, flotation, and separation of automotive shredder residue are described, and commercial scale and lab-scale results are introduced.

• Resources Recycling
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• v.24 no.1
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• pp.58-65
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• 2015

Although Korea is a top market sharing and world leading producer and developer of flat panel display devices, relevant recycling technology is not up to her prestigious status. Besides, most of the waste glass arising from flat panel displays is currently land-filled. The present paper mainly reviews on development of recycling systems for waste TFT-LCD glass from end-of-life LCD TVs and monitors and TFT-LCD process waste of crushed glass particles with target end uses of raw material for high strength concrete pile and glass fibers, respectively. Waste LCD glass was recycled to fabricate ingredients for high strength concrete piles with enhanced physical properties and spherical foam products. The waste LCD glass recycling technology is already developed to fabricate long and short fibers at commercial level. In view of these, future R & D on waste LCD glass materials is to be directed toward implementation of commercial materials recycling system therefrom.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.150-152
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• 2021

For the development of a resource recycling society, it is important to control the generation of waste in all processes such as production, distribution, consumption and disposal, and to recycle the recyclable resources of waste instead of simply landfilling and incineration. However, in order to develop a resource-recycling society, not only emitters, businesses, and the central government, but also local governments need to work together to find a solution. Therefore, in this study, we present a promotion strategy for the development of Sejong City's resource-recycling society, taking into consideration the current situation of Sejong City as well as changes in the government's institution system. We suggest that regionally preparing recycling priority management plan, maximizing waste resource utilization, establishing recycling industry activation plan, and building a systematic and efficient recycling platform, etc.