광촉매 코팅농도가 포름알데히드 제거능에 미치는 효과 - 코팅 두께 표준화 연구를 중심으로 -

박영규(Young G. Park),한만소(Man-So Han) 대한환경위생공학회 2005 대한환경위생공학회지 Vol.20 No.4

Photocatalytic degradation using TiO₂ particles suspended in a reactor was experimentally performed to degrade the formaldehyde of indoor pollutants. Exponential increase of degradation appears to prove light availability due to the scattering of UV light by particles themselves. Comparative removal studies of formaldehyde were done in both cases of dipping and spraying immobilized techniques of TiO₂ particles suspended in solution. Experiments were performed under several different experimental conditions such as initial concentration of formaldehyde, UV intensity and concentration of photocatalysts. Optimal conditions to degrade formaldehyde were obtained under the conditions of 30 ㎎/㎠ concentration of catalyst and UV intensity of 30 Watt at the distance of 30 ㎝ using immobilized technique by dipping coating.

고분자젤 내에서 분자체 거동현상 연구

박영규(Young G . Park),성기천(Ki Chun Sung) 한국유화학회 2001 한국응용과학기술학회지 Vol.18 No.1

N/A Theoretical model has been studied for the transport phenomena of molecules in the system where an electric potential is applied to the system in the axial direction. The effect of electrophoretic convection in the polymeric media is significantly contributed to separate large ionic-molecules because the conformation of large ionic-molecule quickly orients in the field direction. The dependence of the transport in the polymeric media upon field intensity and molecular size aids in understanding the transport of large ionic-molecule in the system, since the convective velocity of large ionic-molecule is accelerated inside a porous material. The transport distance of individual large ionic-molecule can be predicted using the reptation theories.

생물학적 폐수처리시 수질 경도에 따른 처리효과 연구

박영규(Young G. Park) 대한환경위생공학회 2004 대한환경위생공학회지 Vol.19 No.3

Biological treatment of wastewater was studied with a purpose to remove TOC by the reduction of water hardness. The optimal conditions of coagulant were determined by reaction time and amount of coagulant. Experimental results indicate that the biological treatment after physico-chemical treatment was found to provide very efficient removal efficiency in the process to treat the textile wastewater, including the carbon dioxide treatment. The combined process of carbonization in the physico-chemical treatment respectively was increased the removal efficiencies of 30.0 % in biological treatment in comparison with exclusive biological treatment. As a result, the treatment of hardness after carbonization had the best removal efficiency of approximately 60.0%. The removal efficiencies in the exclusive biological treatment using Bacillus subtilis and after carbonization were increased by 38.9% and 69.0% respectively. The combined Bacillus subtilis-assisted biological treatment was determined to be the most effective method to treat the textile wastewater in an economic point of view, the water quality in the wastewater treatment plays an important role.

샌드위치식 고분자담체를 이용한 알코올 연속생산연구

박영규(Young G. Park),김희정(Hee-jung Kim) 한국생물공학회 2008 KSBB Journal Vol.23 No.3

ISO14001 환경영향평가방법을 이용한 청정공정관리

박영규(Young G. Park) 한국청정기술학회 1999 청정기술 Vol.5 No.2

습식세정탑 내 악취가스 제거를 위한 복합흡수제의 효율 특성

박영규 ( Young G. Park ),김정인 ( Jeong In Kim ) 한국공업화학회 2011 공업화학 Vol.22 No.1

아민계열 화학흡수제와 다른 화합물과의 혼합용액이 중화반응을 통해 악취가스를 제거하는 사실이 알려져 왔다. 이러한 혼합용액 중 식물추출물의 식물정유 성분은 그 자체로 만으로도 악취가스 20~40% 이상 제거능을 가지며 0.2% 아민계열 흡수제와의 혼합용액은 악취가스의 98% 이상의 제거효율을 갖는 것으로 나타났다. 악취가스인 암모니아가스와 황화수소가스를 제거하기 위해 온도와 pH 운전조건에 따라 식물정유물질과 아민계열의 화학흡수제 등을 이용하여 적정운전조건을 위한 실험을 수행하였다. 식물정유 성분 중 모노테르펜의 성분을 분석하기 위하여 GC-MS분석방법을 사용하였으며 그들의 반응메카니즘의 일부가 규명되었다. It was found that the absorbent mixed with 2-aminoethanol and others has been applied to remove them via chemical neutralization. The absorbent of natural second metabolites was achieved by a removal efficiency of 20~30% by itself depending on treatment conditions, but the complex absorbent mixed with 0.2% amine chemical provides the removal efficiency of over 98%. Optimal removal efficiencies have been examined against two major parameters of the temperature and pH to remove ammonia and hydrogen sulfide gases. The chemical analysis was also performed to analyze the composition of an essential oil by GC-MS. The monoterpenes in an essential oil reacted with odorous compounds by neutralization and their reaction mechanism was partially elucidated.

시멘트산업공정에서의 CO₂배출량 저감을 위한 청정기술 적용에 관한 연구

박영규(Young G. Park),김정인(Jeong-In Kim) 한국청정기술학회 2010 청정기술 Vol.16 No.3

시멘트공정 내 청정기술인 폐기물 재자원화 및 에너지회수공정을 이용하여 CO₂발생량 저감을 위한 타당성을 연구하였다. 원료투입물 대체방법으로써 용융슬래그를 시멘트 클링커 제조용 주원료로 사용하기 위한 전과정 평가(life cycle assessment: LCA)를 실시하였다. 이를 통하여 시멘트소성로 내 탈탄산 과정에서 발생하는 이산화탄소의 양을 60% 이상 줄일 수 있었다. 이전 연구에서 환경영향평가 실시 후 우선순위로 선정된 시멘트 공정의 에너지효율 개선 및 대체에너지를 적용하여 현 시점에서 가장 빠른 시일 내에, 가장 경제적인 방법으로, 탄소중립적 에너지소비체계로의 전환을 위해 화석연료로 분류된 천연가스를 사용하여 가장 효율적인 녹색전략으로 CO₂배출량 저감을 위한 연구를 수행하였다. The feasibility of clean technology to minimize the CO₂ emission by recycling and reuse the waste materials and energy have been studied for the cement industry. A life cycle assessment (LCA) was performed for an alternative raw material-supply method to use the molted slag as the major raw material in the cement clinker manufacturing. Using this new method, a 60% of CO₂ could be reduced that comes out during the decarboxylation from the cement rotary kiln. The energy-efficiency improvement and the alternative energy methods that had been determined in our previous study through the environmental assessment of cement industry were applied to the study for the reduction of CO₂ emission. The natural gas, one of the fossil fuels, was also used as the first choice to get the result at the earliest time by the most economic and the most efficient green technology and to switch into the carbon neutral energy consumption pattern.

Air-lift 반응기내 황화수소제거시 식물정유추출물의 역활

박종우(JongWoo Park),박영규(Young G. Park),김정인(Jeong-in Kim) 한국생물공학회 2010 KSBB Journal Vol.25 No.5

본 논문은 복합흡수제를 이용하여 유해가스를 처리하기 위해 식물정유의 주요구성성분을 파악한 식물정유로 황화수소가스의 처리효율을 규명하고자 하였다. 또한 복합흡수제와 황화수소가스에 의한 제거반응을 위한 적정조건을 분석하였으며 그 결과는 아래와 같이 요약 할 수 있다. 1) 황화수소가스는 중화반응으로 처리하고 져 할 경우, 식물정유의 화학구조에서 알코올기, 알데히드기, 에스터기등이 중화반응에 관여한다. 실험결과 앞서 언급한 화학작용기가 포함되어 있는 경우에 아민계열의 2-아미노에탄올 및 식물정유의 복합흡수제와 황화수소 가스와의 중화반응으로 염을 형성하여 유해가스 제거효율이 98%에 도달한다. 2) 황화수소가스를 제거하는 중화반응의 경우에 온도와 pH에 따라 처리효율이 크게 달라졌다. 높은 온도보다는 낮은 온도에서 제거효율이 거의 98%이상 나타났다. 적정 pH는 중성영역에서 비교적 처리효율을 확인하였다. 3) 황화수소가스의 처리효율은 초기농도에 따라 처리효율이 크게 차이가 나타났다. 황화수소의 초기농도가 1,100 ppm 이상인 경우에 처리효율은 40%로 나타났다. 반면, 240 ppm 이상인 경우에는 10분이내에 황화수소 가스 처리 효율이 90%이상 처리되는 것으로 나타났다. This paper reports on the experimental investigation carried out to evaluate the physical optimal conditions in the absorption column to remove odorous hydrogen sulfide gas. Hydrogen sulfide gas, as a highly undesirable contaminant, is most widely emitted from environmental treatment facilities. The absorbent mixed with natural second metabolites extracted from conifer trees and chemical absorbent of 2-aminoethanol was applied to remove it via chemical neutralization. The absorbent of natural second metabolites was achieved by a removal efficiency of 20-40% by itself depending on the treatment conditions, but the complex absorbent mixed with 0.1% amine chemical provides the removal efficiency of 98%. The optimal removal efficiencies have been examined against the two major parameters of temperature and pH. This study shows that the aqueous solution by natural second metabolites can be used as an appropriate absorbent in the column absorbed for the removal of hydrogen sulfide gas.