광촉매공정 적용시 축산폐수의 처리특성 및 최적화

박재홍; Jae-Hong Park

Clean Technology, Vol.13, No.3, 222-227, September, 2007

Export Citation

광촉매공정 적용시 축산폐수의 처리특성 및 최적화

Optimization and Characteristics of Removal Condition of Livestock Wastewater Using a Photocatalytic Process

박재홍^†

국립환경과학원 수질총량관리센터, 404-708 인천광역시 서구 경서동 종합환경연구단지내

Jae-Hong Park^†

Watershed Management Research Division, National Institute of Environmental Research, EnvironmentalResearch Complex, Kyungseo-dong, Seo-gu, Incheon 404-708, Korea

E-mail:

초록

축산폐수처리에 광촉매공정을 적용하였을 때 운전변수 중 자외선 조사거리, 반응면적, 부유고형물(SS)농도, 컬럼직경이 처리율에 미치는 영향을 실험실 규모의 광촉매반응기를 사용하여 실험하였다. 최적운전조건은 자외선 조사거리 3 cm (7 cm 이하 권장), 반응면적 3.6 m2, SS농도 40 mg/L (300 mg/L이하 권장), 컬럼직경 5 mm (10 mm 이하 권장)로서 COD, 색도, coliform 제거율이 반응시간 300 min에서 각각 49%, 53% 100%로 나타났다. 최적운전조건에서 난분해성 COD의 제거율은 57%로 나타나 광촉매반응이 난분해성 유기물제거에 어느 정도 효과가 있는 것으로 나타났다.

The photocatalytic degradation of livestock wastewater has been investigated over TiO2 photocatalysts irradiated with a ultraviolet (UV) light. The effect of operational parameters, i.e., distance, reaction area, concentration of suspended solids(SS), and column diameter on the degradation of livestock wastewater has been performed in lab-scale. The optimal conditions for livestock wastewater were determined: distance was 3 cm (less than 7 cm), reaction area was 3.6 m2, SS concentration was 40 mg/L (less than 300 mg/L) and column diameter was 5 mm (less than 10 mm). Under the optimal conditions, COD, color and coliform removal efficiencies were approximately 49%, 53% and 100%, respectively. Non-biodegradable COD removal efficiency increased with 57% using by photocatalysis process. Therefore, it is shown that photocatalysis has an effect on degradation of non-biodegradable organic matter.

Keywords:광촉매반응;축산폐수;COD;색도;대장균;운전변수

[References]

Choi YS, Hong SW, Kim SJ, Chung IH, Water Sci. Technol., 45, 71 (2001)
Lee SY, Cho HS, Won CH, Korean Society of Environmental Engineers, 28(3), 286 (2006)
US EPA. Feedlot industry sector profile revised draft report (1998)
Chudoba J, Water Res., 19, 37 (1985)
Artan N, Orhon D, Water Res., 23, 1511 (1989)
Orhon D, Artan N, Cimtit Y, Water Sci. Technol., 21, 339 (1989)
Bauer R, Waldner G, Fallmann H, Hager S, Klare M, Krutzler T, Malato S, Maletzky P, Catal. Today, 53(1), 131 (1999)
Engwall MA, Pignatello JJ, Grasso D, Water Res., 33, 1151 (1999)
Kang YW, Hwang KY, Water Res., 34, 2786 (2000)
Kim SM, Geissen SU, Vogelpohl A, Water Sci. Technol., 35, 239 (1997)
Oh D, Jun S, Park S, Yoon T, J. Korean Soc. Environ. Eng., 16, 51 (1994)
APHA, AWWA and WEF., Standard Methods for the Examination of Water and Wastewater, 20th Eds., APHA, Washington D.C., USA (1998)
Zhao J, Wu T, Wu K, Oikawa K, Hidaka H, Serpone N, Environ. Sci. Technol., 32, 2394 (1998)
Vinodgopal K, Wynkoop D, Environ. Sci. Technol., 30(5), 1660 (1996)

[1] Choi YS, Hong SW, Kim SJ, Chung IH, Water Sci. Technol., 45, 71 (2001)

[2] Lee SY, Cho HS, Won CH, Korean Society of Environmental Engineers, 28(3), 286 (2006)

[3] US EPA. Feedlot industry sector profile revised draft report (1998)

[4] Chudoba J, Water Res., 19, 37 (1985)

[5] Artan N, Orhon D, Water Res., 23, 1511 (1989)

[6] Orhon D, Artan N, Cimtit Y, Water Sci. Technol., 21, 339 (1989)

[7] Bauer R, Waldner G, Fallmann H, Hager S, Klare M, Krutzler T, Malato S, Maletzky P, Catal. Today, 53(1), 131 (1999)

[8] Engwall MA, Pignatello JJ, Grasso D, Water Res., 33, 1151 (1999)

[9] Kang YW, Hwang KY, Water Res., 34, 2786 (2000)

[10] Kim SM, Geissen SU, Vogelpohl A, Water Sci. Technol., 35, 239 (1997)

[11] Oh D, Jun S, Park S, Yoon T, J. Korean Soc. Environ. Eng., 16, 51 (1994)

[12] APHA, AWWA and WEF., Standard Methods for the Examination of Water and Wastewater, 20th Eds., APHA, Washington D.C., USA (1998)

[13] Zhao J, Wu T, Wu K, Oikawa K, Hidaka H, Serpone N, Environ. Sci. Technol., 32, 2394 (1998)

[14] Vinodgopal K, Wynkoop D, Environ. Sci. Technol., 30(5), 1660 (1996)