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난방도일 기반 대한민국 행정구역별 기후존 구분 기준 정립에 관한 연구
노병일(Byeong Il Noh),최재완(Jaewan Choi),서동현(Donghyun Seo) 대한설비공학회 2015 설비공학 논문집 Vol.27 No.11
Climatic zone in building code is an administrative district classification reflecting regional climatic characteristics. Use of Degree-Days is a fundamental method that can be used in various building design codes, analysis of building energy performance, and establishment of minimum thermal transmittance of building envelopes. Many foreign countries, such as the USA, the EU, Australia, Italy, India, China, etc., have already adapted climatic zone classification with degree-days, precipitation or amount of water vapor based on the characteristics of their own country’s climate. In Korea, however, the minimum requirements for regional thermal transmittance are classified separately for the Jungbu area, Nambu area and Jeju Island with no definite criterion. In this study, degree-days of 255 Korean cities were used for climatic zone classification. Outdoor dry-bulb temperature data from the Korea Meteorological Administration for 1981~2010 was used to calculate degree-days. ArcGIS and the calculated degree-days were utilized to analyze and visualize climatic zone classification. As a result, depending on the distribution and distinctive differences in degree-days, four climatic zones were derived:1) Central area, 2) Mountain area of Gyeonggi and Gangwon provinces, 3) Southern area, and 4) Jeju Island. The climatic zones were suggested per administrative district for easy public understanding and utilization.
ZVI와 Persulfate를 이용한 Orange Ⅱ 폐수처리에 관한 연구
최수민 ( Su Min Choi ),노병일 ( Byeong Il Noh ),문병현 ( Byung Hyun Moon ) 한국수처리학회 2014 한국수처리학회지 Vol.22 No.4
In this study, the combined ZVI and persulfate treatment on the decolorization and CODCr removal efficiency of orange Ⅱ dye wastewater were evaluated. The results of the sequential ZVI reduction and persulfate oxidation process on the decolorization and CODCr removal efficiency were compared to those of the ZVI and the simultaneous ZVI and persulfate processes. For the ZVI process, optimum pH for decolorization was observed to be at 3. However, the removal of CODCr by a ZVI at optimum pH of 3 was not effective. The combined ZVI and persulfate process could mineralize orange Ⅱ dye wastewater to the higher removal efficiencies of CODCr than the ZVI process. The sequential ZVI reduction and persulfate oxidation process of orange Ⅱ dye wastewater showed that the reduction products of orange Ⅱ dye by ZVI were oxidized more rapidly by persulfate. This means that the sequential ZVI reduction and persulfate oxidation process is more effective to promote the degradation of orange Ⅱ dye wastewater.
조명찬,노병일,신춘환 동서대학교부설연구소 1997 연구소 논문집 Vol.2 No.-
피혁의 최종처리공정 중 코딩공정은 피혁제품의 품질을 결정하는 중요한 기술로 자리잡고 있다. 피혁 코팅에 사용되는 수지들은 분산매의 종류에 따라 유성 Polyurethane(PU) 계열 및 수성 PU계열로 크게 구별되며 근래에 와서는 작업환경의 개선 및 환경오염 방지 측면에서 수용성 PU의 사용이 보편화 되면서 이들의 수질오염에 미치는 영향을 제시할 필요성이 대두되었다. 따라서 본 실험에서는 수용성 PU가 수계에 유입되었을 경우 COFD, BOD, SS의 상승효과를 측정함으로써 기초자료로 활용하고자 하며 특히 수용성 PU는 polyol 및 diisocyanate의 중 부가반응에 의해 생성되는 고분자 물질로서 수중에서는 분자 Chain이 절단되는 aging effect현상이 현저할 것으로 예상하여 수용성 PU가 유입된 수계의 aging effect와 BOD 및 COD와의 상관성을 도출하여 방류수 처리의 기초자료로 제공하고자 한다.