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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 17, Issue 6 - Dec 2008
Volume 17, Issue 5 - Oct 2008
Volume 17, Issue 4 - Aug 2008
Volume 17, Issue 3 - Jun 2008
Volume 17, Issue 2 - Apr 2008
Volume 17, Issue 1 - Feb 2008
Selecting the target year
A Study about Recycling from Municipal Solid Waste Incineration Bottom Ash
Ahn, Ji-Whan ; Oh, Myung-Hwan ; Han, Choon ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 3~11
The treatment of domestic municipal solid waste has inclined to incineration process instead of disposal in landfills. So, the amount of ash generated by incineration of municipal solid waste is gradually increased. The incineration ash divides into bottom ash and fly ash. The bottom ash which accounts for about 90% of the incineration ash consists of ceramics, glasses and metals. And it can be used as the recycling product by the stabilization process. For example, the bottom ash is used as secondary building material or for other similar purposes such as road sub-bases and noise barrier in USA, Europe and Japan. But, the stabilization-treatment technique of bottom ash sti11leaves much to be desired in Korea. Thus, the domestic study of recycling about bottom ash must be improved through investigation about the chemical property and technique of stabilization.
Solvent Extraction for the Separation of Gd and Nd from Chloride Solution with PC88A and Saponified PC88A
Lee, Man-Seung ; Lee, Jin-Young ; Kim, Joon-Soo ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 12~19
Solvent extraction experiments have been performed to separate Gd and Nd from chloride solution with PC88A and saponified PC88A. In the experimental ranges conducted in this study, the extraction percentage of Gd was higher than that of Nd. Use of 40% saponified PC88A increased the distribution coefficients of Gd and Nd. A chemical model was developed to predict the distribution coefficients of the two metals from the initial extraction conditions. The measured distribution coefficients of Gd and Nd with PC88A and saponified PC88A agreed well with those calculated in this study.
Preparation and Characterization of Activated Carbon Derived from Leather Waste Discharged from Shinpyung Changrim Industrial Complex
Park, Seung-Cho ; Nam, Jeong-Kwang ; Kim, Jung-Sup ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 20~28
Leather waste discharged from Shinpyung Changrim Industrial Complex contained 46.3 percent of carbon, and weight loss of leather waste about 50 percent was observed at
by thermogravimetric analysis. Chemically activated carbon [LW4AC] was made at activation temperature of
during 30 minutes in electric furnace. Iodine value and decoloration of methylene blue was 968 mg/g and 158 mL/g, respectively. We found that pore volume was more developed according to the increase in the ratio of
A Study in order to Utilize Waste Glasses Powder as Admixtures of Self-Compacting Concrete
Choi, Yun-Wang ; Jung, Jea-Gwone ; Kang, Hyun-Jin ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 29~37
Recently, domestically and internationally, the occurrences of Waste Glass are on the increase. Most of scrap glass are either reused of recycled. However, glass not recycled is buriedand is causing secondary environmental problem. With 5% mixture of Waste Glass, the average paste viscosity (rheology) decreased by 22.3% and 28-day compressive strength of mortar's flow and aging decreased by 1.5% and 6% respectively. Also, as Waste Glass mixture ratio of un-hardened elf-compacting concrete increased, fluidity increased and compressive strength decreased. In consideration of adequate compressive strength and fluidity that meets the 2nd class JSCE regulations; optimum mixture ratio of Waste Glass can be concluded as 20%.
Leaching and precipitation of Vanadium in ammoniacal solution
Park, Kyung-Ho ; Kim, Hong-In ; Lee, Jin-Young ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 38~42
This study was carried out to investigate the solubility of vanadium in ammoniacal solution and precipitation of
as a function of temperature and addition of ammonia salt. Higher solution temperature is required to get high solubility of vanadium and the vanadium concentration of solution was 16.8g/L at
with the solution of 20 g/L
. From this solution, vanadium could be precipitated up to 99.8% with adding 20 g/L
, 72 hours settling time at
A Study on Material Separation of Waste Plastics Beer Bottle by Triboelectrostatic Separation
Jeon, Ho-Seok ; Delgermaa, Delgermaa ; Baek, Sang-Ho ; Park, Chul-Hyun ; Choi, Woo-Zin ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 43~50
In this study, we carried out the research on triboelectrostatic separation for materials separation of PET & Nylon recovered to waste plastic beer bottle. From the research on charging characteristic for choice of charging materials, it was found that PMMA was optimum charging material to make high charging amount with opposite polarity for PET & Nylon in waste plastic beer bottle. Therefore, we manufactured a charger of pipe line and cyclone type using PMMA material for separation of PET and Nylon. At optimum test conditions that used PMMA pipe line and cyclone charger developed in this study, we developed a triboelectrostatic separation technique that can separate PET plastic up to grade of 99.6% and recovery of 88.2%. We established new separation technology that can recycle the PET and Nylon recovered from waste plastic beer bottle.
Preparation of Matte with Pyrite and Chalcopyrite as sulfur source and Leaching behaviour
Park, Kyung-Ho ; Nam, Chul-Woo ; Chang, Jong-Sin ; Ahan, Sung-Chen ; Kim, Hong-In ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 51~58
Artificial mattes were prepared with adding pyrite or chalcopyrite as sulfur sources with Cu-Ni-Co-Fe alloy. The major phases identified by X-ray diffraction pattern were
for both mattes, and the matte prepared by adding chalcopyrite showed the higher peak of
due to high content of copper. Under optimum conditions, more than 95% copper, 90% nickel and 90% cobalt were extracted into leaching solution and sulfur concentration in the mattes did not much affect the leaching efficiency of the metals. The increase of the amount of pyrite or chalcopyrite added decreased pH in leaching solution and increased the concentration of iron ion dissolved in the leaching solution and the amount of residue.
Adsorption Behaviors of Nickel Ion on the Manganese Dioxide Powder
Baek, Mi-Hwa ; Kim, Min-Kyung ; Kim, Dong-Su ; Sohn, Jeong-Soo ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 59~65
The adsorption features of nickel ion in wastewater on manganese dioxide from spent batteries were investigated for its usage as an adsorbent. The aquatic behavior of nickel ion was characterized by MINTEQ program and the considered influential variables on the adsorption of nickel ion were its initial concentration, reaction temperature, the amount of adsorbent, and pH. The adsorption ratio of nickel ion decreased with increasing its initial concentration and thermodynamic estimation has been carried out based on the adsorption characteristics of nickel ion depending on temperature. In addition, the adsorption of nickel ion was shown to be promoted according to the amount of manganese dioxide and a lot of nickel ions were adsorbed as the solution pH was raised.
Synthesis of Functional Complex Material from Spent Alkaline Manganese Battery
Kim, Tae-Hyun ; Lee, Seoung-Won ; Sohn, Jeong-Soo ; Kang, Jin-Gu ; Shin, Shun-Myung ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 66~72
Fundamental studies for the synthesis of Mn-Zn ferrite powder were investigated using a series of leaching and coprecipitation processes from spent alkaline manganese batteries. Zinc and Manganese dissolution rates obtained at the reaction conditions of 100g/L pulp density, 3.0M
and 200 rpm with 30 ml
as a reducing agent were more than 97.9% and 93.9% and coprecipitation of Mn-Zn ferrite powder was performed according to various reaction conditions such as temperature, time and amount of
gas injection using the leaching solution. As a result of coprecipitation, Mn-Zn ferrite could be synthesized directly at low temperature in the reaction condition pH 12,
1.3 L/min. and 400 rpm. The synthesized Mn-Zn ferrite powder was spherical powder of
particle size and had a saturation magnetization about 80 emu/g.
An Experimental Study on the Properties of Concrete Substituting the Rapid Chilled Steel Slag for Fine Aggregate
Kim, Nam-Wook ; Park, Min-Wook ; Bae, Ju-Seong ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 73~79
Along with the increased social infrastructures and reconstruction, the demand for aggregate, which is used in concrete, has rapidly increased. However, there are problems due to the exhaustion of natural aggregate resources, and strict restrictions. In this study, the possibility of using rapid chilled steel slag as a substitutive material of fine aggregate is determined from the property test and mechanical test for the concrete that is made with rapid chilled steel slag, which highly decreases the free CaO, the main problem of the steel slag.
Separation of Ni and Fe from
leaching solution of scrapped Fe-Ni alloy
Yoo, Kyoung-Keun ; Jha, Manis Kumar ; Kim, Min-Seuk ; Yoo, Jae-Min ; Jeong, Jin-Ki ; Lee, Jae-Chun ;
Journal of the Korean Institute of Resources Recycling, volume 17, issue 1, 2008, Pages 80~87
Cementation and solvent extraction processes were studied to separate nickel and iron ions from the
leaching solution with 47 g/L
, 23.5 g/L Ni and 0.90M
which leached from Fe-Ni alloy. Iron powder was used as a reducing agent for the cementation of Ni ion from the leaching solution. The reduction percentage of Ni ion was
by adding 4 times stoichiometric amount of iron powder at
. This may result from the fact that the cementation of Ni ion occurred after the reduction of
and the neutralization of
with iron powder. The cementation process was proved to be unfeasible for the separation/recovery of Ni ion from the leaching solution including
as a major component.
present in the leaching solution was converted to
for solvent extraction of Fe ion using D2EHPA in kerosene as a extractant. The oxidation of
was completed by the addition of 1.2 times stoichiometric amount of 35%
was extracted from the leaching solution (23.5 g/L
) by 4 stages cross-current extraction using 20 vol.% D2EHPA in kerosene.
solution with 98.5% purity was recovered from the
leaching solution of scrapped Fe-Ni alloy.