Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
권호 표지
DOI QR코드

DOI QR Code

Experimental determination of design parameters for filtration trench using phosphorus removal granular materials

인 제거 입상소재를 적용한 여과수로 설계인자의 실험적 결정

  • Jang, Yeoju (University of Science and Technology (UST), Smart City & Construction Engineering) ;
  • Lim, Hyunman (Korea Institute of Civil Engineering and Building Technology (KICT), Department of Land, Water and Environment Research) ;
  • Jung, Jinhong (Korea Institute of Civil Engineering and Building Technology (KICT), Department of Land, Water and Environment Research) ;
  • Ahn, Kwangho (Korea Institute of Civil Engineering and Building Technology (KICT), Department of Land, Water and Environment Research) ;
  • Chang, Hyangyoun (University of Science and Technology (UST), Smart City & Construction Engineering) ;
  • Park, Nari (University of Science and Technology (UST), Smart City & Construction Engineering) ;
  • Kim, Weonjae (Korea Institute of Civil Engineering and Building Technology (KICT), Department of Land, Water and Environment Research)
  • 장여주 (과학기술연합대학원대학교 스마트도시.건설융합) ;
  • 임현만 (한국건설기술연구원 국토보전연구본부) ;
  • 정진홍 (한국건설기술연구원 국토보전연구본부) ;
  • 안광호 (한국건설기술연구원 국토보전연구본부) ;
  • 장향연 (과학기술연합대학원대학교 스마트도시.건설융합) ;
  • 박나리 (과학기술연합대학원대학교 스마트도시.건설융합) ;
  • 김원재 (한국건설기술연구원 국토보전연구본부)
  • Received : 2018.10.08
  • Accepted : 2018.12.14
  • Published : 2019.02.15
Download PDF
⟨ Previous Next ⟩

Abstract

The algal blooms in stagnant streams and lakes have caused many problems. Excessive algae leads to disturbance of ecosystem and overload of water treatment processes. Therefore, phosphorus(P), source of algal blooms, should be controlled. In this study, a filtration trench has been developed to convert dissolved phosphorus into hydroxyapatite(HAP) so that it could be crystallized on the surface of 'phosphorus removal granular material'; and residual particulate phosphorus could be removed by additional precipitation and filtration. The front and rear parts of filtration trench consisted of 'phosphorus removal granular material contact bed' and 'limestone filtration bed', respectively. As a result of the column test using phosphorus removal granular material and limestone serially, $PO_4-P$ was removed more than 90% when EBCT(empty bed contact time) of the contact bed was over 20 minutes; and T-P represented 60% of removal efficiency when total EBCT was over 1.5 hours. The results of column tests to figure out the sedimentation characteristics showed that more than 90% of particulate phosphorus could be removed within 24 hours. It was necessary to optimize the filtration part in order to increase removal efficiency of T-P additionally. Also, it was confirmed through the simulation of Visual MINTEQ that most of particulate phosphorus in the column tests is the form of HAP. Based on the results of the study, it could be suggested that the design parameters are over 0.5 hour of EBCT for phosphorus removal granular material contact bed and over 1.5 hours of EBCT for limestone filtration bed.

Keywords

References

  1. Ahn, C.Y., Lee, C.S., Choi J.W., Lee S.H., and Oh, H.M. (2015). Global occurrence of harmful cyanobacterial blooms and N, P-limitation strategy for bloom control, Korean J. Environ. Biol., 33(1), 1-6. https://doi.org/10.11626/KJEB.2015.33.1.001
  2. Byeon, N.D., Kim, G.Y., Lee I.J., Lee, S.R.M., Park, J.R., Hwang, T.M. and Joo, J.C. (2016). Investigation and evaluation of algae removal technologies applied in domestic rivers and lakes, J. Korean Soc. Environ. Eng., 38(7), 387-394. https://doi.org/10.4491/KSEE.2016.38.7.387
  3. Chang, H.Y. (2017). Phosphorus removal by hydroxyapatite crystallization using limestone filter bed in wastewater effluent, Master's Thesis, University of Science and Technology, Daejeon, Korea, 1-67.
  4. Chang, H.Y., Park, N.R., Jang, J.Y., Ahn, K.H., Lim, H.M. and Kim, W.J. (2017). Elution characteristics of lime-based granular alkaline material and applicability of phosphorus crystallization processes, J. Korean Soc. Water and Wastewater, 31(6), 577-586. https://doi.org/10.11001/jksww.2017.31.6.577
  5. D.W. Schindler (1974). Eutrophication and recovery in experimental lakes: Implications for lake management, Science, 184(4139), 897-899. https://doi.org/10.1126/science.184.4139.897
  6. D.W. Schindler (1977). Evolution of phosphorus limitation in lakes, Science, 195(4275), 260-262. https://doi.org/10.1126/science.195.4275.260
  7. D.W. Schindler (2012). The dilemma of controlling cultural eutrophication of lakes, Proc. Biol. Sci., 279, 4322-4333. https://doi.org/10.1098/rspb.2012.1032
  8. Kim, B.C., Sa, S.H., Kim, M.S., Lee, Y.Y. and Kim, J.K. (2007). The limiting nutrient of eutrophication in reservoirs of Korea and the suggestion of a reinforced phosphorus standard for sewage treatment effluent, J. Korean Soc. Water Environ., 23(4), 512-517.
  9. Kim, E.J., Nam S.H., Koo, J.W., Lee S.R.M., Ahn, C.H., Park, J.R., Park J.I., and Hwang, T.M. (2017). Applicability of unmanned aerial vehicle for chlorophyll-a map in river, J. Korean Soc. Water and Wastewater, 31(3), 197-204. https://doi.org/10.11001/jksww.2017.31.3.197
  10. Kim, H.S. and Hwang, S.J. (2004). Analysis of eutrophication based on chlorophyll-a, Depth and Limnological characteristics in Korean reservoirs, Korean J. Limnol., 37(2), 213-226.
  11. Korea wastewater Information System, https://www.hasudoinfo.or.kr/knowledge/envWaterQuality.do (December 5, 2018).
  12. Kwon, Y.H., Seo, J.K., Park, S.W. and Yang, S.Y. (2006). Evaluation of diatom growth potential in midstream and downstream Nakdong river, Algae, 21(2), 229-234. https://doi.org/10.4490/ALGAE.2006.21.2.229
  13. Lim, Y.S., Song, W.S., Cho, J.S., Lee, H.J. and Heo, J.S. (2000). The effect of algae on coagulation and filtration of water treatment process, Korean J. Environ. Agric., 19(1), 13-19.
  14. Reynolds, C.S. and Davies, P.S. (1974). Sources and bioavailability of phosphorus fractions in freshwaters: a British perspective, Biol. Rev., 76, 17-64.
  15. Visual MINTEQ a brief tutorial, https://docplayer.net/36482927-Visual-minteq-a-brief-tutorial.html (October 4, 2018).