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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 13, Issue 6 - Dec 2004
Volume 13, Issue 5 - Oct 2004
Volume 13, Issue 4 - Aug 2004
Volume 13, Issue 3 - Jun 2004
Volume 13, Issue 2 - Apr 2004
Volume 13, Issue 1 - Feb 2004
Selecting the target year
A basic study on the recovery of Ni, Cu, Fe, Zn ions from wastewater with the spent catalyst
Lee Hyo Sook ; Oh Yeung Soon ; Lee Woo Chul ;
Journal of the Korean Institute of Resources Recycling, volume 13, issue 2, 2004, Pages 3~8
A basic study on the recovery of heavy metals such as Zn, Ni, Cu and Fe ions from wastewater was carried out with the spent iron oxide catalyst, which was used in the Styrene Monomer(SM) production company. The heavy metals could be recovered more than 98％ with the spent iron oxide catalyst. The alkaline components of the spent catalyst could be precipitated the metal ions of the wastewater as metal hydroxides at the higher pH 10.6 in Ni, pH 8.0 in Cu, pH 6.5 in Fe, pH 8.5 in Zn. But the metal ions are adsorbed physically on the surface of the spent catalyst in the range of the pH of the metal hydroxides and pH 3.0, which is the isoelectric point of the iron oxide catalyst.
A study on the recovery of chromium from metal-plating wastewater with spent catalyst
Lee Hyo Sook ; Oh Yeung Soon ; Lee Woo Chul ;
Journal of the Korean Institute of Resources Recycling, volume 13, issue 2, 2004, Pages 9~15
A large tons of spent iron oxide catalyst come from the Styrene Monomer(SM) production company. It is caused to pollute the land and underground water due to the high alkali contents in the catalyst by burying them in the landfill. In order to recycle the spent catalyst, a basic study on the recovery of chromium ion from metal plating wastewater with the spent catalyst was carried out. The iron oxide catalyst adsorbed physically
in the lower pH 3.0, that is the isoelectric point of the spent catalyst. It was found that the iron oxide catalyst reduced the
into Cr+3 by the oxidation of ferrous ion into ferric ion on the surface of catalyst, and precipitated as
in the higher than pH 3.0. The
was recovered 2.0∼2.3g/L catalyst in the range of pH 0.5∼2.0, but it was recovered 1.5 g/L catalyst at pH 3.0 of wastewater. The recovery of Cr was increased as the higher concentration in the continuous process, but the flowrates were nearly affected on the Cr recovery.
A Study on the Characterization of Anthracite Fly Ash for the Fabrication of Calcinated Brick
Yu Yeon-Tae ; Kim Byoung-Gyu ; Choi Young-Yoon ; Nam Chul-Woo ; Lee Yeng-Seok ; Kim Cheon-Sun ;
Journal of the Korean Institute of Resources Recycling, volume 13, issue 2, 2004, Pages 16~23
To increase the recycling rate of anthracite fly ash, the properties of anthracite fly ash were compared to that of bituminous fly ash. Especially, the high temperature properties of the fly ash are investigated by using thermal analysis, high temperature microscope and X-ray diffraction analysis for utilizing anthracite fly ash to prepare the calcinated bricks. The average ratio of
for anthracite is 0.62 and the ratio for bituminous is 0.34. The content of
in anthracite fly ash was higher than that of bituminous fly ash. The
of anthracite fly ash reacted with the
in the fly ash and formed new mullite crystal at over
, so anthracite fly ash showed high fire resistance. And, the fly ash mixtures having kaolin were prepared, and then extruded in vacuum to evaluate the extruding property of anthracite fly ash mixture. The extruding velocity was decrease with increasing the addition amount of fly ash in the mixture, and the maximum addition amount of fly ash that could be extruded was 60 wt%.
Solvent Extraction Equilibria of Gd with PC88A from Chloride Solution
Lee Gwang-Seop ; Lee Jin-Young ; Kim Sung-Don ; Kim Joon-Soo ; Park Jang-Hyun ; Lee Man-Seung ;
Journal of the Korean Institute of Resources Recycling, volume 13, issue 2, 2004, Pages 24~32
Solvent extraction equilibria of Gd with PC88A from chloride solutions were analyzed by considering chemical equilibria. phase equilibria, mass and charge balance equations. The following solvent extraction reaction and equilibrium constant were evaluated from the experimental data performed in this study.
, K=3.3 A procedure was suggested to calculate the initial concentration of chloride ion from initial pH and initial concentration of Gd. By applying ionic equilibria, the distribution of Gd complexes with Gd and HCl concentration was obtained. The predicted distribution coefficients of Gd agreed well with the experimental results.
Recovery of High Purity Calcium Nitrate from Blast Furnace Slag
Yoo Jeong Kun ; Lee Man Seung ; Kim Kyung Soo ; Choi Seung Hoon ;
Journal of the Korean Institute of Resources Recycling, volume 13, issue 2, 2004, Pages 33~38
Concepts and experimental results for the unique utilization process which we could obtain the high purity calcium nitrate from blast furnace slag in the steel industry are described. Firstly we reacted the blast slag with nitric acid and separatively removed the insoluble silica by filtration. We adjust the pH of filtrate to 6∼8 with calcined lime, and then precipiated out the metal components like Fe, Al, Mg in the forms of hydroxides. Consequently concentration of the mother liquor and crystallization processes make us obtain the high purity (>98 wt%) calcium nitrate tetrahydrates, which is expected the valuable fertilizers.
Triboelectrostatic Recovery of High Zinc-Containing Particulate contents from Steel-Making Process Dust
Chang Hyun-Joo ; Kim Dong-Su ; Kim Hang-Goo ; Cho Min-Yaung ; Namkung Won ;
Journal of the Korean Institute of Resources Recycling, volume 13, issue 2, 2004, Pages 39~46
The amount of electric furnace dust has been steadily increasing due to the increase of iron scraps which are usually recycled by electric furnace melting process. To date, this electric furnace dust has usually been treated by landfilling, however, because of shortage of landfill sites and heavy metal leaching more desirable treatment schemes are urgently needed. Among several possible schemes for the proper treatment of electric furnace dust, its recycling can be said to be most desirable. In present study, the triboelectrostatic separation of zinc and zinc-containing components from electric furnace dust was attempted based on its physicochemical properties such as particle shape, size distribution, and chemical assay. The dust was found to be mixed with spherical and non-spherical shaped particles and its major component materials were
, ZnO, Fe, Zn, and FeO. The content of zinc-containing components in the entire dust was observed to be in the range of 15～30 wt%, which reasonably justified that zinc is recyclable. The triboelectrostatic characteristic of each component material was found to be different each other since their work functions were different, and based on this characteristic zinc and zinc-containing component could be flirty separated from the dust. After selecting a proper tribo-elec-trification material, the separation features of zinc and zinc-containing component were examined by taking the distance of electrodes, electric field strength, and scavenging as the experimental variables. The highest zinc-content obtained under the optimal separating condition was found to be up to 50wt%.
Test Run for the Production of Aluminum Hydroxide by Recycling of Waste Aluminum Dross
Lee Hooin ; Park Ryungkyu ; Kim Joonsoo ;
Journal of the Korean Institute of Resources Recycling, volume 13, issue 2, 2004, Pages 47~53
Waste aluminum dross is a major waste in the aluminum scrap smelters, and some metallic aluminum remains in the waste dross. In the previous study, waste aluminum dross was leached with sodium hydroxide solution to extract the remained aluminum into the solution, and aluminum hydroxide precipitate was recovered from the leached solution. A pilot plant was constructed and tested to demonstrate the developed technology. One thousand tons of waste aluminum dross could be processed, and about five hundred tons of aluminum hydroxide could be produced in the pilot plant. From the test run of the pilot plant, it was confirmed that the developed technology could be employed as a commercial scale and the produced aluminum hydroxide could be used for water treatment agent.