Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Evaluation on Removal of Organics and Nutrients from Reverse Osmosis Concentrate using Activated Carbon

활성탄을 이용한 역삼투 농축수의 유기물 및 영양염류 제거 평가

  • Joo, Sung Hee (Institute of Environmental Technology, Woongjin Coway Co., Ltd.) ;
  • Park, Jong Min (Institute of Environmental Technology, Woongjin Coway Co., Ltd.) ;
  • Lee, Yang Woo (Institute of Environmental Technology, Woongjin Coway Co., Ltd.)
  • 주성희 (웅진코웨이 환경기술연구소) ;
  • 박종민 (웅진코웨이 환경기술연구소) ;
  • 이양우 (웅진코웨이 환경기술연구소)
  • Published : 2012.05.30
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Abstract

Membrane process has been one of the widely applied wastewater treatment options, especially in field. However, one of the tricky issues in the process is to treat concentrates generated from reverse osmosis (RO) system in a manner of saving cost with maximum efficiency for treating a wide range of contaminants. Stimulated with the challenging issues, we have conducted a series of experimental studies in the evaluation for removing organics and nutrients using activated carbon. Results indicated that while powdered activated carbon (PAC) efficiently removed organics and the extent of removal was proportional to the PAC dosage, little removal of nitrogen and phosphorus was observed despite increasing the PAC dose. Interestingly, applying PAC was superior in removing organics than using granular activated carbon (GAC). These results suggest smaller particle size with higher surface area could provide greater chemical reactivity in removing organics.

Keywords

References

  1. Bae, B.-U. and Lim, M.-G. (2010). Performance Evaluation of Powdered Activated Carbon (PAC) Contactor for the Removal of Organics and Taste and Odor, Journal of Korean Society on Water Quality, 26(4), pp. 585-589.
  2. Bagastyo, A. Y., Keller, J., Poussade, Y., and Batstone, D. J. (2011). Characterisation and Removal of Recalcitrants in Reverse Osmosis Concentrates from Water Reclamation Plants, Water Research, 45(7), pp. 2415-2427. https://doi.org/10.1016/j.watres.2011.01.024
  3. Dialynas, E., Mantzavinos, D., and Diamadopoulos, E. (2008). Advanced Treatment of the Reverse Osmosis Concentrate produced during Reclamation of Municipal Wastewater, Water Research, 42(18), pp. 4603-4608. https://doi.org/10.1016/j.watres.2008.08.008
  4. Galvin, R. M. and Mellado, J. M. R. (1998). Potassium Permanganate as Pre-oxidant in a Reverse Osmosis Water Plant, Water SA, 24(4), pp. 361-364.
  5. Kim, C.-S., Choi, S.-I., and Lee, G.-C. (2000). Effects of Coagulation on Adsorptive Capacity of Powdered Activated Carbon, Journal of Korean Society on Water Quality, 16(2), pp. 211-222.
  6. Peel, R. G. and Benedek, A. (1980). Attainment of Equilibrium in Activated Carbon Isotherm Studies, Environmental Science & Technology, 14(1), pp. 66-71. https://doi.org/10.1021/es60161a013
  7. Seo, J. and Kang, J. (2010). A kinetic Study on the Phosphorus Adsorption by Physical Properties of Activated Carbon, Journal of Korean Society on Water Quality, 26(3), pp. 491-496.
  8. Shon, H. K., Vigneswaran, S., Kim, I. S., Cho, J., and Ngo, H. H. (2004) The Effect of Pretreatment to Ultrafiltration of Biologically Treated Sewage Effluent: A Detailed Effluent Organic Matter (EfOM) Characterization, Water Research, 38(7), pp. 1933-1939. https://doi.org/10.1016/j.watres.2004.01.015
  9. Westerhoff, P., Moon, H., Minakata, D., and Crittenden, J. (2009). Oxidation of Organics in Retentates from Reverse Osmosis Wastewater Reuse Facilities, Water Research, 43(16), pp. 3992-3998. https://doi.org/10.1016/j.watres.2009.04.010
  10. Zhou, T., Lim, T.-T., Chin, S.-S., and Fane, A. G. (2011). Treatment of Organics in Reverse Osmosis Concentrate from a Municipal Wastewater Reclamation Plant: Feasibility Test of Advanced Oxidation Processes with/without Pretreatment, Chemical Engineering Journal, 166(3), pp. 932-939. https://doi.org/10.1016/j.cej.2010.11.078