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$TiO_2$/HAP 여재를 통한 Sulfamethoxazole의 동역학적 흡착과 광촉매반응에 대한 연구
천석영,장순웅,Chun, Suk-Young,Chang, Soon-Woong 한국방재학회 2011 한국방재학회논문집 Vol.11 No.6
In this study, it was found that adsorption and photocatalysis methodology of antibiotics such as Sulfamethoxazole with various catalyst(Titanium dioxide; $TiO_2$, Hydroxyapatite; HAP). And compared the result of determined kinetics such as pseudo first order, second order and intra particle diffusion model. $TiO_2$/HAP adsorbent were found to follow the pseudo second order reaction. And in the result of applied intrapaticle diffusion model, the constant of reaction rate were $TiO_2=0.0641min^{-1}$, $HAP=0.2866min^{-1}$ and $TiO_2/HAP=0.3708min^{-1}$, respectively. According the result of intraparticle diffusion model and photocatalysis experiments showed the $TiO_2$/HAP was more effective system. 본 연구에서는 다양한 촉매(Titanium dioxide; $TiO_2$, Hydroxyapatite; HAP)를 통해 항생제의 하나인 Sulfamethoxazole의 흡착과 광촉매 산화반응에 대해 연구하였다. 그리고 도출된 유사 1차, 2차 반응과 입자내 확산 모델(intraparticle diffusion model)의 동역학적 결과를 비교하였다. $TiO_2$/HAP는 유사 2차 반응을 따르는 것으로 나타났으며 입자내 확산 모델의 적용 결과, 반응속도 상수는 각각 $TiO_2=0.0641min^{-1}$, $HAP=0.2866min^{-1}$와 $TiO_2/HAP=0.3708min^{-1}$으로 나타났다. 입자내 확산 모델과 광촉매 산화 반응의 결과에 따르면 $TiO_2$/HAP 공정이 효율적인 것으로 관찰되었다.
연구논문 : 빗물펌프장에 설치된 인공습지의 비점오염원 저감효율 연구
천석영 ( Suk Young Chun ),김지태 ( Ji Tae Kim ),이일국 ( Il Kook Lee ),장순웅 ( Soon Woong Chang ) 한국환경영향평가학회 2014 환경영향평가 Vol.23 No.1
The aim of this study was evaluated the effects of total rainfall, rainfall intensity and antecedent dry days and identify the correlation analysis with the EMC removal efficiency, in order to provide an understanding of the operation and maintenance factors of constructed wetland in flood pumping station. This study was conducted total of 20 monitoring in a catchment (326.2 ha) of constructed wetland in Ga-un flood pumping station located at the downstream of the Wang-suk stream. The determined EMC removal efficiencies were 36.04±9.45% for BOD, 38.50±13.50% for CODMn, 34.34±13.05% for TN and 34.22±14.27% for TP, respectively. These results showed that the pollutants concentration and EMC were reduced while passing through the constructed wetland. In the correlation analysis, the highly correlations with EMC removal efficiency of BOD and CODMn were observed for total rainfall and rainfall intensity (P<0.05). However, the correlations were not found with TN and TP for rainfall variables.