Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Empirical evaluation for design parameters and operating characteristics of the integrated sedimentation and dissolved air flotation (SeDAF) process at the pilot-scale plant

파일럿 플랜트 규모에서 일체형 침전부상공정 (SeDAF)의 설계인자 및 운전특성에 대한 실증적 평가

  • Jang, Yeoju (Department of Business Headquarters, LEOTEK Co., Ltd.) ;
  • Jung, Jinhong (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT)) ;
  • Lim, Hyunman (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT)) ;
  • Kim, Weonjae (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT))
  • 장여주 ((주)레오테크 기술사업본부) ;
  • 정진홍 (한국건설기술연구원 국토보전연구본부 환경자원재생연구센터) ;
  • 임현만 (한국건설기술연구원 국토보전연구본부 환경자원재생연구센터) ;
  • 김원재 (한국건설기술연구원 국토보전연구본부 환경자원재생연구센터)
  • Received : 2020.08.27
  • Accepted : 2020.12.14
  • Published : 2021.02.15
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Abstract

Eutrophication and algal blooms can lead to increase of taste and odor compounds and health problems by cyanobacterial toxins. To cope with these eco-social issues, Ministry of Environment in Korea has been reinforcing the effluent standards of wastewater treatment facilities. As a result, various advanced phosphorus removal processes have been adopted in each wastewater treatment plant nation-widely. However, a lot of existing advanced wastewater treatment processes have been facing the problems of expensive cost in operation and excessive sludge production caused by high dosage of coagulant. In this study, the sedimentation and dissolved air flotation (SeDAF) process integrated with sedimentation and flotation has been developed for enhanced phosphorus removal in wastewater treatment facilities. Design and operating parameters of the SeDAF process with the capacity of 100 ㎥/d were determined, and a demonstration plant has been installed and operated at I wastewater treatment facility (located in Gyeonggi-do) for the verification of field applicability. Several empirical evaluations for the SeDAF process were performed at demonstration-plant scale, and the results showed clearly that T-P and turbidity values of treated water were to satisfy the highest effluent standards below 0.2 mg/L and 2.0 NTU stably for all of operation cases.

Keywords

Acknowledgement

본 연구는 한국건설기술연구원 주요사업의 연구비 지원으로 수행되었습니다(과제번호: 20200425). 이에 감사드립니다.

References

  1. Chae, M.B. and Oh, S.C., Ministry of Environment. (2012). A study on the improvement methods for treatment efficiency of phosphorus treatment facilities, 1-183.
  2. 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.
  3. Choi, H.S., Lee, K.S., Lee, C.S., Kim, H.K. and Park, J.S. (2010). "Organic and T-P treatment technology using CATT process and stopper", KSWW.KSWE Conference, 2010(0), 103-104.
  4. Edzwald, J.K., Bunker, D.Q., Dahlquist, J., Gillberg, L. and Hedberg, T. (1994). Chemical water and wastewater treatment III. Springer-Veriag, Berlin, 3-18.
  5. George, T. and Franklin, L.B. (2016). Wastewater Engineering. 5th edition, Donghwa Publishing, Seoul, 1-1942.
  6. Jang, Y.J., Jung, J.H., Ahn, K.H., Lim, H.M. and Kim, W.J. (2020a). Applicability of Al/P (aluminium/phosphorus) ratio in SeDAF process for enhanced phosphorus removal, J. Korean Soc. Environ. Eng., 42(11), 539-547. https://doi.org/10.4491/KSEE.2020.42.11.539
  7. Jang, Y.J., Jung, J.H., Chang, H.Y., Park, N.R., Lim, H.M. and Kim, W.J. (2020b). Decision of optimal coagulant dosage for SeDAF (sedimentation and dissolved air flotation) process applicable to enhanced phosphorus removal, KSWST J. Water Treat., 28(4), 33-42.
  8. Jang, Y.J., Jung, J.H., Chang, H.Y., Park, N.R., Maghfiroh, M. and Kim, W.J. (2020c). Sludge production characteristics of sedimentation.dissolved air flotation (SeDAF) process for enhanced phosphorus removal, J. Korean Soc. Environ. Eng., 42(11), 529-538. https://doi.org/10.4491/KSEE.2020.42.11.529
  9. Kim, B.C., Sa, S.H., Kim, M.S., Lee, Y.K. 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.
  10. Korea Water and Wastewater Works Association, Ministry of Environment. (2010). Korean design standards of water treatment facility, ISBN 978-89-7706-211-5 93530, 1-1173.
  11. Korea Water and Wastewater Works Association, Ministry of Environment. (2011). Korean design standards of sewage facility, ISBN 978-89-7706-212-2 93530, 1-1109.
  12. Lee, H.K. (2014). A Case Study on the Evaluation of Efficiency Treatment Plant TP Treatment Facility in Public Sewage Source, Master's thesis, Chonnam National University, Chonnam, Korea, 1-54.
  13. Lee, K.C. (2011). Characteristics of Phosphorus Removal in Treated Sewage Using Microbubble Flotation System, Ph.D thesis, The University of Seoul, Seoul, Korea, 1-169.
  14. Lee, S.J. (2000). A Study on the Water Purification Characteristics among the Conventional Sedimentation, Circular-type Dissolved Air Flotation and the Combined Process of Sedimentation-Flotation, Master's thesis, Yonsei University, Seoul, 1-35.
  15. Malley, J.P. and Edzwald, J.K. (1991). Laboratory comparison of DAF with conventional treatment, J. Am. Water Works Assoc, 83(9), 56-61. https://doi.org/10.1002/j.1551-8833.1991.tb07214.x
  16. Ministry of Environment. (2012), A study on improvement methods for treatment efficiency of phosphorus treatment facilities, 1-183.
  17. Ministry of Environment. (2017). Korean design standards of water treatment facility, KC Code KDS 57 55 00, 1-100.
  18. Ministry of Environment. (2019). Korean design standards of sewage facility, KC Code KDS 61 00 00, 1-107.
  19. Odegaard, H. (1985). Chemical water and wastewater treatment. Fisher, New York, 81-102.
  20. Park, S.J., Yoon, T.I., Cho, K.C. and Kim, C.G. (2000). Application of ultra rapid coagulation for securing water resource II: study of CSO treatment and sludge reuse, Clean Technol., 6(1), 39-49.
  21. United States Environmental protection agency (USEPA). (2010). Nutrient control design manual. Washington D.C., United States, 1-369.
  22. Wetzel, R.G. (2001). Limnology, 3rd, Academic press, Massachusetts, 239-288.