Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Improvement of Rapid Sand Filtration to Two Stage Dual Media Filtration System in Water Treatment Plant

정수처리장내 급속모래 여과지의 이단복합여과시스템으로의 개량

  • 우달식 ((재)한국계면공학연구소) ;
  • 황규원 ((재)한국계면공학연구소) ;
  • 김준언 (효성에바라엔지니어링) ;
  • 황병기 (상명대학교 건설시스템공학과) ;
  • 조관형 (청운대학교 철도행정토목학과)
  • Received : 2011.01.18
  • Accepted : 2011.04.14
  • Published : 2011.04.30
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Abstract

This study aimed for developing a two stage dual media filtration system. It has a sand and activated carbon layer above the under-drain system, and a sand layer above the middle-drain system for pretreatment. When retrofitting an old sand filter bed or designing a new one, this technology can substitute the existing sand filter bed without requiring a new plant site. The removal rate of total particle is 93, and 3~7 ${\mu}m$ and 5~15 ${\mu}m$ particles are all 97%. These high removal efficiencies of each pollutant due to adsorption and biological oxidation in activated carbon filter layer. The best backwashing method of two stage dual media filtration system is ascertained by air injection, air + water injection and water injection sequence. In this study, a pilot plant of two stage and dual filtration system was operated for 4 months in water treatment plant. The stability of turbidity was maintained below 1 NTU. The TOC, THMFP and HAAFP were removed about 90% by two stage and dual media filtration system, which is almost 2 times higher than existing water treatment plant.

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References

  1. Kim JK, Jeong SG, Shin CS, Cho HJ. Characteristics of disinfection by-products formation in Korea. J Kor Soc Water and Wastewater. 2005; 19(3): 301-311.
  2. Kim CH, Kim HS. International seminar on membrane filtration technology for water supply. J Kor Soc Water and Wastewater. 2003; 17(5): 594-605.
  3. Lee YJ, Jo KH, Choi JH, Myung BT, Nam SH. Evaluation of chlorine demand and chlorine decay kinetics for drinking water. Kor J Env Heal Sci. 2001; 27(1): 27-35.
  4. Song SB, Jo M, Nam SH, Woo DS. A Study on the process selection for two-stage and dual media filtration system for improving filtration performance. J Kor Soc Water and Wastewater. 2007; 21(2): 203-214.
  5. Lechevallier MV. Evaluating the performance of biologically active rapid filters. J Amer Water Works Assoc. 1992; 84(4): 136-145. https://doi.org/10.1002/j.1551-8833.1992.tb07339.x
  6. Moon SY, Kim SH. Discussion of problems during the application of the on-line particle counter in water treatment process. J Kor Soc Water and Wastewater. 2005; 19(2): 214-220.
  7. AWWA. Water quality and treatment. 5th Ed. McGraw Hill, USA. 1999.
  8. AWWA. Operational control of coagulation and filtration processes - Manual of water supply practices. 2nd ed. AWWA Research Foundation, Denver; 2000. p.51-66.
  9. Rook JJ. Formation of haloforms during chlorination of natural water. J Water Treat Exam. 1974; 23(2): 234-243.
  10. Page T, Harris RH, Epstein SS. Drinking water and cancer mortality in Louisiana. Science. 1976; 193: 55-57. https://doi.org/10.1126/science.935854
  11. Kim SS, Lee KH. Assessment and optimization of granular activated carbon (GAC) process in water treatment process. J Kor Soc Water and Wastewater. 2005; 19(6): 781-790.
  12. Boorman GA, Dellarco VT, Dunnick JK, Chapin RE, Hunter S, Hauchman F, Gardner H, Cox M, Sills RC. Drinking water disinfection byproducts: Review and approach to toxicity evaluation. Env Heal Perspt. 1999; 107(Suppl 1): 207-217. https://doi.org/10.1289/ehp.99107s1207
  13. Amirtharajah, A. Optimum backwash of dual media filter and GAC filter adsorbers with air scour. AWWA Research Foundation, Denver; 1991.
  14. Korea Water and Wastewater Works Association : Standard for water treatment woks, Ministry of Environment; 2004.
  15. Moon CH, Lee YJ, Ko YS, Nam SH. An experimental review of backwashing factors on BAC-sand filter. J Kor Soc Env Eng. 2003; 25(2): 227-233.

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  1. Improvement of Rapid Sand Filtration to Two Stage Dual Media Filtration System in Water Treatment Plant vol.23, pp.4, 2014, https://doi.org/10.5322/JESI.2014.4.737