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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korea Organic Resource Recycling Association
Journal Basic Information
Journal DOI :
Korea Organic Resource Recycling Association
Editor in Chief :
Volume & Issues
Volume 22, Issue 4 - Dec 2014
Volume 22, Issue 3 - Sep 2014
Volume 22, Issue 2 - Jun 2014
Volume 22, Issue 1 - Mar 2014
Selecting the target year
Sustainable middle indices development for Algae Bio-energize industry
Koo, Ja-Kong ; Kim, So-Hyun ;
Journal of the Korea Organic Resource Recycling Association, volume 22, issue 2, 2014, Pages 11~16
Korea is the urgent need to diversify the bio-energy raw materials because we have narrow area of land cultivated plants and lack the bio-mass resources. Using a resource-rich the marine environment enclosed on three sides by the sea. Through bio-energy production-technical and carbon dioxide reduction measures which will be a very effective alternative. Sustainable development about algae bio-energize industry through SSaM-GG(Smart, Shared and Mutual-Green, Growth) is expected. Algae has high carbon dioxide absorption factor, extracting oil from algae is thirty times much more than sunflower.
Adsorption characteristics of synthetic heavy metals (
) by bentonite
Shin, Woo-Seok ; Kim, Young-Kee ;
Journal of the Korea Organic Resource Recycling Association, volume 22, issue 2, 2014, Pages 17~26
In this study, the adsorption efficiency of mixed heavy metals from an aqueous solution was examined using bentonite. The physical and chemical properties of bentonite was analyzed via scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR), Further, heavy metal adsorption was characterized using Freundlich and Langmuir equations. Equilibrium adsorption data were fitted well to the Langmuir model for bentonite. The adsorption uptake of heavy metals was high and followed the order
. The results also showed that adsorption uptake slightly increased as increasing pH from 6 to 10. The bentonite surface was observed viay SEM and FT-IR; Si-O and Si-O-Al were found to be the main functional groups by FT-IR analysis. From these results, the adsorption mechanisms of heavy metal were not only surface adsorption and ion exchange, but also surface precipitation. Thus, bentonite could be a useful adsorbent for treating heavy metal in aqueous solution.
Adsorption Properties of Cadmium onto Granite Soil and Calcium Sand
Lee, Myoung-Eun ; Kwon, Min-Seok ; Ahn, Yong-Tae ; Chung, Jae-Woo ;
Journal of the Korea Organic Resource Recycling Association, volume 22, issue 2, 2014, Pages 27~34
Kinetic and isotherm properties of the cadmium adsorption onto calcium sand and granite soil were evaluated by batch experiments. The pHs of calcium sand and granite soil were 9.51 and 6.33, respectively, showing that the precipitation of heavy metals can be occurred due to the increase of pH when the calcium sand is used as an adsorbent. The pseudo-second-order model described the adsorption kinetics satisfactory with correlation coefficients over 0.999. The equilibrium adsorption capacities of calcium sand and granite soil were 2.10 and 2.16 mg/g, respectively. The adsorption isotherm followed the Freundlich isotherm model, indicating the cadmium adsorbed onto the heterogeneous surfaces of adsorbents.
Life Cycle Impact Assessment to Corn Field Appling Anaerobic and Aerobic Digestates Including Each Swine Waste Treatment System
Shin, Joung-Du ; Lee, Sun-Il ; Park, Woo-Kyun ; Choi, Yong-Su ; Na, Young-Eun ; Park, Yoo-Sung ;
Journal of the Korea Organic Resource Recycling Association, volume 22, issue 2, 2014, Pages 35~43
The application of the Life Cycle Impact Assessment (LCIA) methodology to analyze the environmental burden of appling the digestates to corn field including different swine waste treatment systems was investigated. The first part of LCA is an inventory of parameters used to emissions released due to the system under investigation. In the following step, the Life Cycle Impact Assessment, the inventory data were analyzed and aggregated in order to finally get one index representing the each environmental burden. Each corn field applied with the aerobic and anaerobic digestates including different swine waste treatment systems was used as an example for the life cycle impact analysis. With analyzing the agricultural environmental burden, it observed that the effect of corn field applied aerobic digestate including digestion system was 7.6 times higher at eutrophication effects, but global warming potential effect was 0.9 times less than its applied anaerobic digestate.
Removal of Heavy Metal in Wastewater with Coffee Grounds
Shin, Hyun-Gon ; Kim, Choong-Gon ;
Journal of the Korea Organic Resource Recycling Association, volume 22, issue 2, 2014, Pages 44~49
In order to remove the heavy metals from synthetic wastewater containing Pb, Cr, and Cd, the experiment was conducted with a variety of concentration and pH by using the washed and dried coffee grounds as adsorbent. Almost of the heavy metals were removed in thirty minutes and the removal efficiency was maximized to the 80 percents following the different pH conditions. Furthermore, in the case of Cr, the removal efficiency was declined with the increasing of pH. As a result of this study, coffee grounds is proved to be a very good adsorbent to remove the heavy metals.
Effects of pH and slow mixing conditions on heavy metal hydroxide precipitation
Park, Jong-Hun ; Choi, Gyu-Jin ; Kim, Sang-Hyoun ;
Journal of the Korea Organic Resource Recycling Association, volume 22, issue 2, 2014, Pages 50~56
Conventional coagulation-gravity settling processes in heavy metal removal have a problem in coagulant cost and instability of the settling efficiency. The authors investigated the effects of pH and slow mixing conditions on heavy metal hydroxide precipitation and the particle size distribution of the precipitate for a precipitation-membrane separation process. The optimum pH values for the hydroxide precipitation ranged from 9 to 10. The addition of
did not enhance the heavy metal removal. 20 min of slow mixing at 70 rpm showed the maximum heavy metal removal to meet the water quality criteria for effluent discharge. More than 99.9% of the heavy metal precipitate particles were bigger than
Experimental Evaluation of Intermittent Leachate Recirculation Anaerobic System to digest Source from Separated Food Waste
Lee, Je-Seung ; Lee, Byong-Hi ;
Journal of the Korea Organic Resource Recycling Association, volume 22, issue 2, 2014, Pages 57~66
The leachate recirculation anaerobic digestion system has the advantage of stable methane gas generation compared with existing one phase systems. In this study, an anaerobic digestion system fed with source separated food waste from school cafeteria was studied with different food waste/inoculum anaerobic sludge volume ratios (8:2, 3:7, 2:8). From this study, leachate recirculation anaerobic reactor with food waste/inoculum anaerobic sludge volume ratio of 2:8 that is 9 gVS/L of OLR(Organic Loading Rate) had the highest gas production. Also this anaerobic reactor showed daily decrease of H2S and NH3 contents in produced gas. Average biogas yield was 1.395 m3 Biogas/kg VS added. Other anaerobic reactors with food waste/inoculum anaerobic sludge volume ratio of 8:2 and 3:7 stopped methane gas production.