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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received October 16, 2012
Accepted November 18, 2012

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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악취 및 VOC를 함유한 폐가스의 광촉매 처리: 1. 처리효율에 대한 광촉매담체 다공성의 영향

Treatment of Waste Air Containing Malodor and VOC: 1. Effect of Photocatalyst-carrying Media Porosity on the Photocatalytic Removal Efficiency of Malodor and VOC of Waste Air

이은주^{1 2} 박혜리^{1 2} 임광희^{1 2†}

Eun Ju Lee^{1 2} Hyeri Park^{1 2} Kwang-Hee Lim^{1 2†}

¹대구대학교 화학공학과, 712-714 경상북도 경산시 진량읍 내리리 15 ²산업및환경폐가스연구소, 712-714 경상북도 경산시 진량읍 내리리 15

¹Department of Chemical Engineering, Daegu University, 15 Naeri-ri, Jillyang-eup, Kyungsan-si, Kyungbuk 712-714, Korea ²Research Institute for Industrial and Environmental Waste Air Treatment, 15 Naeri-ri, Jillyang-eup, Kyungsan-si, Kyungbuk 712-714, Korea

khlim@daegu.ac.kr

Korean Chemical Engineering Research, December 2012, 50(6), 945-951(7), 10.9713/kcer.2012.50.6.945 Epub 29 November 2012

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Abstract

광촉매반응기의 충전제로서 glass bead-광촉매담체를 control로 하고 다공성의 silica-based 광촉매담체를 사용하였을 때의 악취 및 VOC를 함유한 폐가스의 광촉매 처리효율에 대한 광촉매담체 다공성의 영향평가를 수행하였다. 다공성의 silica-based-광촉매담체의 광촉매 코팅량은 1,716.3 μg/cm2로서 nonporous glass bead(control)에 담지된 광촉매코팅량인 670 μg/cm2 값의 약 250%이었다. Porous silica-based 담체가 충전된 광촉매반응기의 황화수소 및 톨루엔 제거효율은 각각 22% 및 82%로서, glass-bead 담체가 충전된 UV/광촉매반응기의 경우의 황화수소 및 톨루엔 제거효율인 각각 19% 및 53%와 비교하였을 때에 황화수소의 경우는 약 16% 증가하였고 톨루엔의 경우는 약 55% 증가하였다. 따라서 다공성의 silica-based 광촉매담체를 사용함으로써 황화수소와 톨루엔의 동시처리효율을 각각 제고하였고, 처리효율의 제고율은 황화수소보다 톨루엔의 경우가 3.4배 높았다.

The effect of photocatalyst-carrying media porosity on the photocatalytic removal efficiency of malodor and VOC of waste air was evaluated when the photocatalytic removal efficiency of porous silica-based media was compared with that of glass bead as control. The amount of photocatalyst coated on the surface of porous silica-based media was observed to be 1,716.3 μg/cm2, which was 250% as much as that of nonporous glass bead (control) of 670 μg/cm2. The removal efficiencies of hydrogen sulfide and toluene in case of porous silica-based media were observed to be 22% and 82%, respectively, while the removal efficiencies of hydrogen sulfide and toluene in case of nonporous glass bead media were observed to be 19% and 53%, respectively. Therefore, the removal efficiencies of hydrogen sulfide and toluene increased by 16% and 55%, respectively, when the removal efficiencies of porous silica-based media were compared with those of nonporous glass bead media. Thus the increment ratio of the removal efficiency of toluene was observed to be 3.4 times higher than that of hydrogen sulfide.

Keywords

Photocatalytic Reactor Porosity Photocatalyst-carrying-media Photocatalytic Removal Efficiency Malodor VOC

References

Chu YH, Kim HJ, Song KY, Shul YG, Jung KT, Lee K, Han MH, Catal. Today, 74(3-4), 249 (2002)
Hung WC, Fu SH, Tseng JJ, Chu H, Ko TH, Chemosphere., 66, 2142 (2007)
Bouazza N, Lillo-Rodenas MA, Linares-Solano A, Appl. Catal. B: Environ., 77(3-4), 284 (2008)
Bouazza N, Lillo-Rodenas MA, Linares-Solano A, Appl. Catal. B: Environ., 84(3-4), 691 (2008)
Lim KH, Park SW, Lee EJ, Hong SH, Korean J. Chem. Eng., 22(1), 70 (2005)
Lee EJ, Lim KH, Korean Chem. Eng. Res., 48(3), 382 (2010)
Yang LP, Liu ZY, Energy Conv. Manag., 48(3), 882 (2007)
Neti NR, Parmar GR, Bakardjieva S, Subrt J, Chem. Eng. J., 163(3), 219 (2010)
Bouzaza A, Laplanche A, J. Photochem. Photobiol., A., 150, 207 (2002)
Puddu V, Choi H, Dionysiou DD, Puma GL, Appl. Catal. B: Environ., 94(3-4), 211 (2010)
Kim SB, Hwang HT, Hong SC, Chemosphere., 48, 437 (2002)
Sanchez B, Coronado JM, Caudal R, Portela R, Tejedor I, Anderson MA, Tompkins D, Lee T, Appl. Catal. B: Environ., 66(3-4), 295 (2006)