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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 21, Issue 4 - Dec 2013
Volume 21, Issue 3 - Sep 2013
Volume 21, Issue 2 - Jun 2013
Volume 21, Issue 1 - Mar 2013
Selecting the target year
AMMONIUM NITROGEN STABILIZATION PROCESS(ANS)
Heo, Gwan-Yong ;
Journal of the Korea Organic Resource Recycling Association, volume 21, issue 1, 2013, Pages 13~24
Success Case for Automatic Refuse Collection System
Jung, Yeoug-Hun ; Kim, Yong-Jin ;
Journal of the Korea Organic Resource Recycling Association, volume 21, issue 1, 2013, Pages 25~35
The Effect of Fluid Flow on Power Density in a Horizontal-flow Microbial Fuel Cell
Lee, Chae-Young ; Park, Su-Hee ; Song, Young-Chae ; Yoo, Kyu-Seon ; Chung, Jae-Woo ; Han, Sun-Kee ;
Journal of the Korea Organic Resource Recycling Association, volume 21, issue 1, 2013, Pages 39~44
This study evaluated the effect of fluid flow on the power density in a horizontal-flow microbial fuel cell (MFC). The maximum power densities in four types of flow induced by different channel types in the anode chamber were investigated. The fluid flow at each channel was analyzed using tracer tests. Results of polarization curves showed that the maximum power densities of case 1, 2, 3 and 4 were 95.7, 129.1, 190.9 and 114.2 mW/m2, respectively. Case 3 with a set of guide walls where flow had an S type-like shape showed the highest power density. Based on the Morrill Dispersion Index (MDI) value of case 4, microbial activity would be enhanced since the reactor allows even distribution of substrate but the overflow occurrence would not guarantee stable performance. Therefore, case 3 could be an effective reactor type for MFC because of high electricity generation and stable performance.
The Effect of Hypochlorous Acid on the Nitrogen Removal in Sea Water
Kim, Young-Jun ; Jang, Jae-Eun ; Lee, Sang-Wook ; Cha, Seok-Jun ;
Journal of the Korea Organic Resource Recycling Association, volume 21, issue 1, 2013, Pages 45~52
In this study, we had analyzed the ammonia removal efficiency in sea animal-culturing aquarium water using hypochlorous acid (HOCl) which is very reactive, no harm to human, and with no formation of toxic trihalomethane. The amount of hypochlorous acid for the removal of ammonia varied with the concentration of ammonia in samples, with 90% of removal efficiency for 30 minute reaction time in the sea water where the ratio of hypochloous acid to ammonia (w/w) is about 8.5 ~ 9.0, and 100% removal in the sample with the ratio of 9.8 ~ 10.1. The removal efficiency with the time was shown to be 90% within 10 minute in the ratio of 9.0 ~ 10.0. These results will effectively be used for the proper management and protection of sea animals in large aquarium through water clarification with hypochlorous acid by calculating the right amount and reaction time.
Efficiency of methane production from pig manure slurry using anaerobic digestor combined with compost filtration bed
Jeong, Kwang-Hwa ; Khan, Modabber Ahmed ; Choi, Dong-Yoon ; Lee, Dong-Hyun ;
Journal of the Korea Organic Resource Recycling Association, volume 21, issue 1, 2013, Pages 53~61
The characteristics of methane production from pig manure slurry was investigated using anaerobic digestor combined with compost filtration bed. In this study, raw pig manure slurry was digested in mesophilic rectangular digester (effective volume
) for 25 days and anaerobic digestion wastewater was filtered through compost filtration bed, which is composed of double layer, sawdust and chaff. The characteristics of anaerobic digestion wastewater were BOD 1,800 mg/L, COD 3,500 mg/L, SS 11,800 mg/L, T-N 1,200 mg/L and T-P 350 mg/L. After the filtration process, the contents of BOD, COD, SS, T-N and T-P of the anaerobic digestion wastewater were reduced by 97%, 62%, 89%, 39% and 57%, respectively. The concentrations of N,
of the leachate were 1,024, 111 and 407 mg/L, respectively. However, there was no odor emitted from the leachate.
Effect of organic concentration on its degradation kinetics in a burial site
Lee, Chae-Young ; Choi, Jae-Min ; Oh, Seung-Jun ; Han, Sun-Kee ; Park, Joon-Kyu ;
Journal of the Korea Organic Resource Recycling Association, volume 21, issue 1, 2013, Pages 62~68
The effect of organic substance on its degradation rate in burial site was investigated using batch tests. Substrate were swine and cattle with the initial concentrations of 2, 4, 6, 8, and 10 g VS(volatile solids)/L, respectively. The highest methane production rates of swine and cattle were found at 2 g VS/L as 46.3 and 48.4 ml CH4/g VS.d, respectively. As substrate concentration increased, the methane production rate decreased. The inhibition constants were n and m that were estimated using nonlinear inhibition model. The values of n and m were inhibition constants of methane production rate and ultimate methane yield, respectively. The values of n and m were 4.9 and 0.6 on swine and 1.1 and 0.4 on cattle. The methane production rate was responded sensitively by increase and decrease of substrate concentration, whereas ultimate methane yield do not relatively. From a relation between n and m, inhibitory effect of substrate concentration was confirmed as uncompetitive inhibition.
Feasibility of Powdered MSWI Ash Melted Slag as a Seed Crystal of crystallization reaction for the Removal of Phosphorus from Sewage
Kim, Choong Gon ; Shin, Hyun Gon ; Kim, Seung Won ;
Journal of the Korea Organic Resource Recycling Association, volume 21, issue 1, 2013, Pages 69~75
This study is a fundamental research to test the applicability of powdered MSWI(Municipal Solid Waste Incinerator) ash melted slag as a seed Crystal for crystallization reaction. Powdered ash melted slag was melted at
and ground to lesser than 0.35mm. According to the result of the tests, calcium, enough for crystallization reaction, was eluted from powdered ash melted slag. Moreover, sample(Phosphorus concentration is under 10 mg/L), more than 90% of Phosphorus can be removed. So we rectify the Phosphorus concentration to 100 mg/L. Alkalinity, being well known that it interferes crystallization reaction, effect was studied for synthetic solution(100 mg/L initial Phosphorus concentration, 50 mg/L calcium, pH 8, 1% powdered ash melted slag dosage). For this result, we know that Phosphorus removal is hindered by alkalinity. In addition, the effect of reaction temperature was performed at the same method. The reaction velocity was increased through raising the reaction temperature.
The Study of combustion characteristic and kinetic study of wastes and RDF
Lee, Keon Joo ;
Journal of the Korea Organic Resource Recycling Association, volume 21, issue 1, 2013, Pages 76~84
In this study, thermal weight loss, non-isothermally experiment, chemical composition analysis, calorific value, activation energy (E) were investigated to analysis the kinetic study of RDF, wood pellets, waste wood, waste textile and waste vinyl. When the chemical composition of solidification fuel was compared, the moisture content of RDF was less than the wood pellet and when the kinetic study was compared, the combustion reaction rate of the waste vinyl was higher than any other solidification fuels. However when the combustion efficiency was compared by the activation energy, the RDF had the higher efficiency than other wastes. RDF can be found that the reaction takes place between
depending on the heating rate.
The Effects of different food-wastes of household on the feeding rate and growth rate of Eisenia fetida(Annelida: Oligochaeta) population
Park, Kwang-Il ; Bae, Yoon-Hwan ;
Journal of the Korea Organic Resource Recycling Association, volume 21, issue 1, 2013, Pages 85~93
The amount of salted food waste and non-salted food waste from household consisted of 4 family members was surveyed. And the feeding rate and growth rate of Eisenia fetida population upon the different food wastes such as vegetables, grains, fruits and salted food waste were investigated. Total amount of food waste from a household was 3,200g/week. i.e. 0.114kg/day/capita and non-salted food waste was 53.9% of food waste. Salt contents of vegetables, grains, fruits were 0.60, 0.36 and 0.33%, respectively, if they were assumed to have 70% water content. Salt content of salted food waste was 0.78%. Upon the non-salted vegetables and fruits, feeding rate of earthworm was high but growth rate was low. Upon the non-salted grains, feeding rate of earthworm was low but growth rate was high. Upon the food with 70% water content, earthworm could not feed and grow when salt content of food was over 0.6%, and earthworm could feed normally but showed low growth rate when salt content of food was 0.3%. These results indicated that earthworm could stabilize the non-salted food wastes with ease but could hardly stabilize the salted food wastes.