Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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An experimental study on the filtration test of cotton ball filters

코튼볼 여재의 여과 특성 실험 연구

  • Kim, Sunghong (Department of Civil Engineering, Chosun University) ;
  • Kim, Heejun (SRHuman Tech. Inc. R&D Center) ;
  • Kim, Donghan (Department of Environmental Engineering, Seowon University)
  • 김성홍 (조선대학교 토목공학과) ;
  • 김희준 (에스알휴먼테크 기술연구소) ;
  • 김동한 (서원대학교 환경공학과)
  • Received : 2018.12.21
  • Accepted : 2019.01.28
  • Published : 2019.02.15
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Abstract

In order to measure the filtration characteristics of a cotton ball shape filter, the experiments of suspended solids(SS) surrogate material selection and filtration performance have been carried out in this study. Between the two materials of powdered activated carbon(PAC) and powdered red-clay, PAC is more suitable surrogate material in terms of experimental criteria and particle size distribution in the non-point source pollutants removal system. As a result of the filtration experiments with the cotton ball shape filter, the initial headloss was about 8 cm, and the headloss slightly increased over filtration time. The Kozeny-Carman equation was used to analyze the changes of pressure and porosity during the filtration. The initial porosity was calculated as 0.945 and it decreased to 0.936 at the end of design filtration time. As the filtration continued, the SS concentration of the filtered water gradually increased and the SS removal rate gradually decreased. When the SS target removal efficiency is assumed to be 80%, the cumulative SS removal capacity is expected as $28.8kg/m^2$. This means the volume loading rate of the cotton ball shape filter can be $115m^3/m^2$ when the typical SS concentration of non-point source water pollution is assumed as 250 mg/L.

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References

  1. Angrill, S., Petit-Boix, A., Morales-Pinzon, T., Josa, A., Rieradevall, J., and Gabarrell, X. (2017). Urban rainwater runoff quantity and quality-A potential endogenous resource in cities?, J. Environ. Manage., 189, 14-21. https://doi.org/10.1016/j.jenvman.2016.12.027
  2. Brown, R., Rogers, B., and Werbeloff, L. (2016). Moving toward Water Sensitive Cities: A Guidance Manual for Strategists and Policy Makers, Australia: Cooperative Research Centre for Water Sensitive Cities, Melbourne, 6-18.
  3. Carman, P.C. (1937). Fluid flow through granular beds, Transactions, Institution of Chemical Engineers, London, 15, 150-166.
  4. Ham, J., Yoon, C.G., Kim, H.J., and Kim, H.C. (2010). Modeling the effects of constructed wetland on nonpoint source pollution control and reservoir water quality improvement, J. Environ. Sci., 22(6), 834-839. https://doi.org/10.1016/S1001-0742(09)60185-6
  5. Kang, Y.H., Jang, D.C., and Kang, S.H. (2009). Evaluation of the non-point source treatment facility using the porous lightweight aggregate and the recycled aggregate, J. Korean Soc. Water Wastewater, 23(6), 735-741.
  6. Kim, L.H. and Kang, J.H. (2004). Characteristics of first flush in highway storm runoff, J. Korean Soc. Water Environ., 20(6), 641-646.
  7. Lee, J.H., Choi, S.G., Kim, T.Y., Ju, Y.J., and Chae, E.J. (2014). LID (Low Impact Development) Implementation Scheme for Environmental Impact Assessment, Korea Environment Institute, 5-67.
  8. Ministry of Environment. (2016). Non-Point Pollutants Treatment Facilities Implementation and Maintenance Manual, Ministry of Environment, 198-207.
  9. Ministry of Environment. (2018). White Paper of Environment, Ministry of Environment, 250-254.
  10. Particle Sizing Systems. (2001). ACCUSIZER Model 780-User Manual, Particle Sizing Systems, Santa Barbara, CA, 42-119.
  11. Reddy, K.R., Xie, T., and Dastgheibi, S. (2014). Removal of heavy metals from urban stormwater runoff using different filter materials, J. Environ. Chem. Eng., 2, 282-292. https://doi.org/10.1016/j.jece.2013.12.020
  12. Shin, G.S. and Youk, B.C. (2012). A case of test operation connecting the sewage treatment system in first stage rain-water(undercurrent formula) facilities, Korean Soc. Civ. Eng., 60(2), 63-68.