• Proceedings of the Korean Fiber Society Conference
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• 1995.10a
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• pp.17-18
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• 1995

• Journal of the Korea Organic Resources Recycling Association
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• v.18 no.2
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• pp.55-61
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• 2010

This study was carried out to analyze national and regional distribution of the organic wastes generation and build their distribution maps including food wastes, paper and wood wastes, wastewater and slaughterhouse wastes. The information for the annual waste production was modified using statistics from Ministry of Environment (MOE). Based on waste generation resources data, we established database architecture table about waste generation. The distribution maps for food wastes were built up in both national and regional scales and distribution maps for paper and wood wastes, wastewater and slaughterhouse wastes were also produced, respectively. The distribution maps of waste generation graphically provide the information regarding biomass resources to policy-makers, farmers, general users and it is highly expected to be utilized for policy-making of environmental-friendly agriculture and bioenergy.

• Applied Chemistry for Engineering
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• v.4 no.4
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• pp.653-661
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• 1993

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2004.11a
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• pp.214-217
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• 2004

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2004.11a
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• pp.113-115
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• 2004

• Proceedings of the Membrane Society of Korea Conference
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• 2002.05a
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• pp.142-146
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• 2002

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.41 no.2
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• pp.48-61
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• 2012

장래에 일어날 물부족 문제를 해결하고, 오염물질 발생을 저감하기 위하여, 그리고 산업 폐수 처리수의 자원 재활용의 차원에서 물절약에 대한 인식을 재고시켜야 할 것이다.

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2005.11a
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• pp.293-299
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• 2005

• Resources Recycling
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• v.20 no.5
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• pp.58-63
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• 2011

pH control-precipitation method is used for recovery of EDTA from waste fluid of archeological waterlogged wood conservation treatment. EDTA has been used for eliminating of blacken effect in archeological waterlogged wood which was buried in the ground for long period of time. The black substance is generated by Fe$^{3+}$ in the soil reacted with tannin in the archeological waterlogged wood. In order to remove the black substance in archeological waterlogged wood, EDTA was used. The black substance is eliminated from wood as Fe-EDTA complex are formed, and EDTA is separated and precipitated from Fe-EDTA complexes at pH 2.68 or less. The result of analysis of the precipitated products and the commercial EDTA by FT-IR and FE-SEM showed that precipitated product by pH adjusted was not a type of Fe-EDTA complex, but pure EDTA. In this study, Fe$^{3+}$ from waste fluid of EDTA can be separated by HCl added. EDTA can be recycled by using the method of precipitation of EDTA in a strong acid.

• Journal of the Korea Organic Resources Recycling Association
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• v.7 no.1
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• pp.13-21
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• 1999

The purposes of this research were to evaluate the character of laboratory wastewater, and to examine the utilization of waste egg shells for neutralization and removal of heavy metals. Waste egg shells are excellent at neutralizing acidic wastewater, because they have alkaline minerals such as calcium. It must be seemed that removal rate of heavy metals were very influenced by adsobent dosage and adsorbate concentrations, because waste egg shells acted as precipitation and adsorption. If we reflected the adsorption capacity(k) and adsorption(1/n) of Freundlich isotherm, we couldn't consider waste egg shells as a good adsorbent. In view of these results, it showed that wastes containing the similar compositions as waste egg shells could utilize the neutralization, precipitation and adsorption of heavy metals in laboratory wastewater.