한국환경보건학회지 (Journal of Environmental Health Sciences)

  • 제35권1호
  • /
  • Pages.53-57
  • /
  • 2009
  • /
  • 1738-4087(pISSN)
  • /
  • 2233-8616(eISSN)
한국환경보건학회 (Korean Society of Environmental Health)
권호 표지
DOI QR코드

DOI QR Code

Alum과 PACl을 이용한 응집처리

Chemical Coagulation Treatment Using Alum and PACl in Complex Wastewater

  • 성일화 (가천의과학대학교 보건환경시스템학과)
  • Sung, Il-Wha (Department of Sanitary & Environmental System Engineering, Gachon University of Medicine and Science)
  • 발행 : 2009.02.28
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In order to treat the complex wastewater containing organic compound and solids, pre-treatment system associated with molecular separation process were investigated. The reductions of COD and turbidity were obtained after coagulation processes using Alum (Aluminium sulfate, $Al_2(SO_4)_2{\cdot}18H_{2}O$) and PACl (poly aluminium chloride as 17% $Al_{2}O_{3}$). The results of study were as follows: using variable dosage of Alum, COD removal was highest at 4,000 mg/l, and the reduction of COD and turbidity was 42% and 92%, respectively. The optimum coagulation would be effective at pH 7.3 than pH 9.0 by the addition of alum at a concentration of 6,000 mg/l and PACl was add at 4.25% in raw complex wastewater with 2,000 mg/l alum at pH 7.3, the reduction of COD was reduced by 32%. But coagulation aid experiments indicated that PACl would be more effective in sludge separation ability than COD removal efficiency.

키워드

참고문헌

  1. Park, S.-H. and Han, I. S. : Fenton Oxidation of landfill Leachate by $Fe^{o}$, $Fe^{2+}$, $Fe^{3+}$/$H_{2}O_{2}$ systems. Journal of Korean Society of Environmental Engineers, 19(5), 402-408. 2005
  2. Sung, I. W. : Treatment efficiency of complex wastewater by Fenton's oxidation condition. Journal of Environmental Health Sciences, 32(5), 446-450, 2006
  3. Jung, Y.-D., Kim, J.-Y. and Kim, H.-S. : A study on the flocculation of waste flexographic inks. Journal of Society of Environmental Engineers, 14(4), 283-288, 1992
  4. Jun, H.-B., Choi, S.-H., Baek, H.-K. and Shin, H.-S. : Coagulation of turbidity and dissolved organic carbon in a two stage rapid mix system based on the coagulation mechanisms of alum. Journal of Korean Society of Environmental Engineers, 19(5), 633-642, 1997
  5. Kee, J. C. and Kang, I.-J. : The treatment of heavy metal-cyanide complexes wastewater by ZnlFe Ion and coprecipitation in practical plant(I). Journal of Korean Society of Environmental Engineers, 29(12), 1381-1389, 2007
  6. Choi, B. J., Lee, S. M. and Lee, S. H. : Coagulation treatment of landfill leachate using acid mine drainge(AMD). Journal of Environmental Health Sciences, 26(4), 129-133, 2000
  7. Ryu, D.-C., Bae, E.-Y., Kim, S.-G., Son, H.-J., Song,M.-J. and Kim, Y.-J. : Application of sulfuric acid for improving coagulation efficiency on the down stream of nakdong river. Journal of Korean Society of Environmental Engineers, 22(11), 2059-2065, 2000
  8. Mavros, M., Xekoukoulotakis, N. P., Mantzavinos, D. and Diamadopoulos, E. : Complete treatment of olive pomace leachate by coagulation, activated-carbon adsorption and electrochemical oxidation. Water Research, 42(13), 2889-2898, 2008 https://doi.org/10.1016/j.watres.2008.02.027
  9. Cho, c.-W., Kim, B.-Y., Chae, S.-C., Kim, S.-A. and Chang, P.-G. : Degradation characteristics of non-biodegradable matters using pre-coagulation and fenton oxidation process in livestock wastewater. Journal of Korean Society on Water Quality, 22(1), 66-73, 2006
  10. Lee, H., Lee, C. H. and Jung, C. G. : Improving coagulation performance with pH preadjustment in drinking water treatment. Journal of Environmental Health Sciences, 29(2), 1-6, 2003
  11. El Sarnrani, A. G., Lartiges, B. S. and Villieras, F. : Chemical coagulation of combined sewer overflow: Heavy metal removal and treatment optimization. Water Research, 42(4-5), 951-960, 2008 https://doi.org/10.1016/j.watres.2007.09.009
  12. APHA, AWWA and WEF : Standard methods for the examination of water and wastewater, 21st, 2005
  13. Ministry of Environment, Standard methods for Water quality, 2007