Go to the main menu
Skip to content
Go to bottom
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 19, Issue 6 - Dec 2010
Volume 19, Issue 5 - Oct 2010
Volume 19, Issue 4 - Aug 2010
Volume 19, Issue 3 - Jun 2010
Volume 19, Issue 2 - Apr 2010
Volume 19, Issue 1 - Feb 2010
Selecting the target year
Utilization of Electrostatic Precipitator as Fly ash Classifier
Lee, Seung-Heun ;
Journal of the Korean Institute of Resources Recycling, volume 19, issue 2, 2010, Pages 3~9
In most coal fired power plants, fly ashes collected from each of hoppers in the electrostatic precipitator are transported and stored in a silo. However the properties of the fly ashes collected from each of hoppers in electrostatic precipitator varies with the distance of the collection field from the boiler. The more distance hopper gets fly ash with larger specific surface area. Therefore, in electrostatic precipitator the hopper itself is expected to have the effect of classifying fly ashes. This study examines the physical, chemical and mineralogical properties of fly ash, collected from each of hoppers attached to an electrostatic precipitator in the coal fired power plant and looks into the possibility of the electrostatic precipitator being used as a classifier. Also, the study reviewed the possibility of acquiring high quality fly ash.
Characteristics of Specimens Made from Primary Clay and Red Hwangto with MSWI Fly Ash by Sintering Process
Yoo, Seung-Chol ; Kwon, Moon-Sun ; Park, Sang-Min ;
Journal of the Korean Institute of Resources Recycling, volume 19, issue 2, 2010, Pages 10~18
This research investigates the feasibility of ceramic specimens made from Primary clay and Red Hwangto with MSWI fly ash. Specimens preduced by mix-design maximum 20 wt% MSWI fly ash were analysed by SEM, UTM, ICP, etc. As a result of measurement,
specimen was improved on bending strength and
specimen was improved on compressive and bending strength. Also amount of extracted heavy metal was suitable for regulatory limits. This indicates that MSWI fly ash is indeed suitable for the partial replacement of ceramic materials in bricks.
Pyrolysis and Breaking Characteristics of Waste Wood for Wood-wool Board
Park, Sang-Min ; Kim, Jae-Woo ; Sim, Ki-Sup ; Park, Sang-Sook ;
Journal of the Korean Institute of Resources Recycling, volume 19, issue 2, 2010, Pages 19~27
The purpose of this research was to see thermal and breaking type characteristics of waste wood for construction materials using high temperature and pressure equipment. In TG/DTA graph weight of waste wood was steeply decreased at
, it has to be treated below
for construction materials. In popping test the needle-leaved tree was more broken in texture than the broad-leaved tree, especially, Chamaecyparis obtusa(W-7) was the best. The optimum result was obtained at temp.
, pressure 3MPa among the experimental condition.
A Study on Media Development for Heavy Metals Removal using Waste Bones
Kwon, Moon-Sun ; Kim, Jae-Young ;
Journal of the Korean Institute of Resources Recycling, volume 19, issue 2, 2010, Pages 28~34
In this study, cow tibial from cow bone, a kind of beef waste, sintered at
for three hours was used to measure its removal capacity for metal ions such as Pb, Cd and Zn in a single and a multi-component equilibrium systems. The sorption equilibrium data were analyzed as measured by the effect of media on lead, cadmium and zinc sorption. This analysis shows that the sorption of metal ions for multi-component systems applying IAST can be predicted more reasonably by the Freundlich and the Sips theory than the Langmuir.
A study on Microbubble Column flotation for Recovering High Grade Molybdenite
Kang, Hyun-Ho ; Shin, Shung-Han ; Jeon, Ho-Seok ; Han, Oh-Hyung ;
Journal of the Korean Institute of Resources Recycling, volume 19, issue 2, 2010, Pages 35~44
As the competition of acquiring foreign resources of advanced countries and developing countries intensifies, South Korea which imports most of the mineral resources, started to re-develop domestic mines for molybdenite ore, in order to secure stable natural resources and decrease foreign currency expense. In this study, as a result of performing XRD and composite analysis on Dongwon NMC's (the sole producer of molybdenite ore in Korea) final concentrate(Mo 50.4%), Quartz, Grossular and Hedenbergite exists as impurities and size analysis showed that in relative coarse particle range of 60~140 mesh was formed with high grade over 57% Mo. Also, a test was performed to confirm the possibilities of increasing the grade and recovery of Dong won NMC's final ore. As a result, Mo 58.6% (
97.83%) was obtained with 87.47% recovery at a condition of 15 minutes grinding time, Kerosene as collector 0.1 l/ton, AF as Frother 65 7.2 l/ton, wash water of 630 ml/min and air flow rate of 1,197 ml/min.
Gasification of Woody Waste in a Two-Stage Fluidized Bed Varying the Upper-reactor Temperature and Equivalence Ratio
Mun, Tae-Young ; Kim, Jin-O ; Kim, Jin-Won ; Kim, Joo-Sik ;
Journal of the Korean Institute of Resources Recycling, volume 19, issue 2, 2010, Pages 45~53
During the biomass gasification, tar generation is typically accompanied, which causes many problems, such as pipe plugging and equipment fouling. In the experiments, activated carbon was applied to the upper reactor of the two-stage gasifier in order to remove the tar generated during gasification. In addition, the effects of the upper-reactor temperature and equivalence ratio on the producer gas characteristics (composition, tar content and lower heating value) were investigated. To investigate the effect of the upper reactor-temperature, experiments were performed at 743, 793,
, respectively. To examine the influence of the equivalence ratio, a comparison experiment was carried out at a equivalence ratio of 0.17. In all experiments, tar contents in the producer gases were below
. The maximum LHV of the producer gas was above
, which is much higher than the typical LHV(
) in the air gasification of biomass.
Characterization of Leaching of Heavy Metal and Formation of Acid Mine Drainage from Coal Mine Tailings
Lee, Gye-Seung ; Song, Young-Jun ;
Journal of the Korean Institute of Resources Recycling, volume 19, issue 2, 2010, Pages 54~62
In order to obtain the basic data for recycling of coal mine tailings, the characteristics of coal mine tailings, the formation of AMD from the tailings and the leaching of heavy metal from the tailings were studied. The samples were characterized in terms of chemical composition, mineral composition and content of heavy metal of the tailings were investigated. The effects of time, temperature, content of pyrite, sulfide minerals on the formation of AMD were also investigated. For the leaching tests, the KS method, TCLP method and column test were used. From the investigated data, we can see that the coal mine tailings can be used as aggregate for filling used gallery. We can also see that the formation of AMD from coal mine tailings can be prevented by mixing 4% or more limestone with it.
Trend for Waste Plastic Recycling Technology by Patent Analysis
Kim, Tae-Hyun ; Rhee, Kang-In ; Kim, Yu-Ri ;
Journal of the Korean Institute of Resources Recycling, volume 19, issue 2, 2010, Pages 63~72
The patents were searched to investigate the trend of recycling technologies about plastic waste. Database was collected from WIPS site and the range of the search was limited to patents opened in U.S.A (US), European Union (EU), Japan (JP) and Korea (KR) to september 2009. In this paper, 4,795 patents were selected by investigation abstracts and the trend of the recycling technologies relating to waste plastic were investigated through the analyzing by the years, countries, companies. The patents were occupied 65% by Japan and the most of the patents were about chemical recycling. In the case of Korea, material recycling was major in the patents of waste plastic recycling.