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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Institute of Resources Recycling
Journal Basic Information
Journal DOI :
The Korean Institute of Resources Recycling
Editor in Chief :
Volume & Issues
Volume 6, Issue 4 - Dec 1997
Volume 6, Issue 3 - Sep 1997
Volume 6, Issue 2 - Jun 1997
Volume 6, Issue 1 - Mar 1997
Selecting the target year
Current Status of the Treatment of Used Plastics in Japan
Masahiro, Murakami ;
Journal of the Korean Institute of Resources Recycling, volume 6, issue 2, 1997, Pages 5~11
It presents the amounts of used plastics praduccd in recent years in comparison with the total municipal waste sewage produced in lapan. 'Ex needs of appropriate policies and guidelines to handle various used plastic mzterials are presened and haw such policies and guidelines are currently being mapped out in Japan is also described.
Methods of Separating Used Plastics for Recycling
Journal of the Korean Institute of Resources Recycling, volume 6, issue 2, 1997, Pages 12~21
Plastics waste constitutes approximately 23% by volume of the municipal solid waste(MSW) generated in the U.S. each year, and have slow rate of degradation in the environment. Therefore, there is a great deal of public pressure to recycle plastics, and more than 100 million people participate in the curbside recycling programs. Despite the high level of public interest, only 3.5% of the plastic are recycled, which is substantially lower than the recycle rates of other materials such as paper fibers, glass, and iron. Although a large part of the reason is due to the low price of virgin polymers, which in turn is due to the low price of oil, it is possible to make the plastics recycling as a profitable business by developing advanced technologies. In this communication, various methods of separating pplastics from metals and from each other are discussed.
Development for the Waste Plastics Process
Journal of the Korean Institute of Resources Recycling, volume 6, issue 2, 1997, Pages 22~28
In recent yean thc problem of wastc plastics arc greatly incrcascd with ihe result uf lndushial growth. As a rcsult the amount of wastc plaslics in domestic area is appraxhnately 2,300,000 t<~nin 1996 base and contmuously increasing more than 12% cvcry ycar. Thc disposal way of these waste plastics arc dlLl malnly rely~ng on landill1 or partially incinuralion So that it hss become a senous social problem due to the second envirnmentd pollution. The tcchnologics iar prducing oil from the waste plastics have hccn dcvelopcd far along pennd and currently some of them are in a commercialiration stage Pyrolysis process in one of the major process m heating waslc plaslics bul still has some restlichons for the cammcrc~dizatian duc lo 11s emnom~cal problems assaciated with a systcmiltlc lecd collcctionidispnsJ ways. Cansldenng cnvaomcnld problems, thc inclease m the charge for waste matcds trcatmcnt and thc lmlitarion ni disposal area, it is inteicstcd that the wastc plastics treabncnt by pyrolysn. which would be the safest and the most eilic~ent process for cnnvcrting fecd wastc to rc-usablc rcsourccs. would he predomhant m ihe near h~lurc Thc shldy aims inr the development of haslc ted~nolagy for scaling up to a com~nercial sire through pyrolys~s process which is cnnduclcd under the absence of air. Furthern~orc the waste plastics can be recycled as iual gas or oil wilhout harmful effects in enviroment, The waste w e d plastics arc pyrolyzed in (he fluidized bcd rcaclor under continuous way and thc ail ylcld gives approx~marcly 47 4%.
Recycling Technology of Waste Plastics in Iron and Steel Industry
Journal of the Korean Institute of Resources Recycling, volume 6, issue 2, 1997, Pages 29~41
Stahlwerkc Brcmen in Germany developed a process to inject granulated waste plastics into blast furnncc in 1995. After the successful operation w~th a pilot plant, a new plastic, inlcction system with a capacity of 230 i/d has been operated. NKK in Japan has developed an integrated waste plastics recycling system which includes both plasic preparation and in]cclion system, and has started to operate the system wilh a capacity of 30, 000 tly at Keihin works in October 1996. POSCO in Karea is currently developing a waste plastics injection system to make use of domestic waste plastics in an environmentally friendly manner as well as to recycle the waste plastics as a hlast furnace fuel
Recycling of Used PET-Bottles
Journal of the Korean Institute of Resources Recycling, volume 6, issue 2, 1997, Pages 42~46
The paper reviews various aspects of recycling of used PET bottles. First, it lists the kinds of PET bottles and the amounts used in Korea. It also reviews the recychng pallcics and culrent recycling status of various countncs such as the USA, Tawan. Japm and Karca. A brief flowsheel of recycling process for PET bottles is prescntzd. Problzms assodated with recychng thesc bottlcs arc discussed and various impravements rcqu~red in make such a recycling process better are also suggested and d~scussed.
Current Status of Collection and Recycling of Used Plastics
Journal of the Korean Institute of Resources Recycling, volume 6, issue 2, 1997, Pages 47~59
Thc paper points oul ever increasing amounts of plastics used in dex, clopmg countries and the prohlelns associated with such increase. Tl~e current status of the production and usc of plaslic materials is reviewed. Also reviewed lncludc thc pahcicies and gu~dclmcs canccrning the treatment of used plastics which have already bccn mstitutcd.
Environmental Problems and Recycling Technology for PS Resins
Journal of the Korean Institute of Resources Recycling, volume 6, issue 2, 1997, Pages 60~69
The paper lists various polymcr materials and lheir usage. It also presents the current stahls and projected estimation of the production of thzse resins and problems associated with these resins. A special section has been dedicated towards the problems associated with and recycle strategies for EPS. It also reviews various technologies treating PS resins.
Recycling of Post-consumer Plastic Wastes in the USA
;J. D. Miller;
Journal of the Korean Institute of Resources Recycling, volume 6, issue 2, 1997, Pages 70~77
The paper revlcws [he kinds and thcir physical and chemical characleristics of varlnus plastics. The nccds for ~ccycling of used plastics are emphasized and problems and challcngcs ilssoclatcd with treatments of such used plastics are described It aLra makes various suggestions to meet and solve these problems.