Journal of Korean Society of Water and Wastewater (상하수도학회지)

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

DOI QR Code

Separation of Inorganic Sludge and MAP from Municipal Wastewater Sludge Using Hydrocyclone

습식 사이클론을 이용한 하수슬러지내 무기성분 및 MAP 분리

  • 이동우 (뉴엔텍(주) 환경기술연구소) ;
  • 배강형 (뉴엔텍(주) 환경기술연구소) ;
  • 조건상 (뉴엔텍(주) 환경기술연구소) ;
  • 김성홍 (조선대학교 토목공학과)
  • Received : 2013.11.22
  • Accepted : 2014.02.14
  • Published : 2014.02.15
Download PDF
⟨ Previous Next ⟩

Abstract

The performance of inorganic sludge separation system is evaluated. Anaerobic digester effluent sludge is used for feed sludge of this system and hydrocyclone is used for inorganic sludge separation. For phosphorus removal and recovery $MgCl_2$ is pumped into MAP growth tank, a component of inorganic sludge separation system. Using this system inorganic sludge which contained less than 40 % of organic matter can be discharged stably and the maximum amount of separated inorganic sludge is 13.4 % of influent sludge based on dry solid. The amount of phosphorus recovered as MAP(as P) is 16.7 % to influent T-P.

Keywords

References

  1. Battistioni P. (2001) The use of organic fraction of municipal solid waste hydrolysis products for biological nutrient removal in wastewater treatment plants, Water Research, 33(1), pp.214-222.
  2. Ju J.I., Choi Y.S., Lee Y.K., Kim T.H., and Kim S.Y. (2003) Numerical study of turbulent flow in a hydrocyclone, Journal of Fluid Machinery, 6(2), pp.34-40. https://doi.org/10.5293/KFMA.2003.6.2.034
  3. Kawatra S.K., Bakshi A.K. and Rusesky M.T. (1996) The effect of slurry viscosity on hydrocyclone classification, Int. J. Miner. Process, 48, pp. 39-50. https://doi.org/10.1016/S0301-7516(96)00012-9
  4. Lee J.H. and Bang K.W. (2009) Analysis of particle trap efficiency for hydrocyclone using computational fluid dynamics, Journal of Fluid Machinery, 9(1), pp.65-72.
  5. Liberti L., D. Petruzzelli and L. de Florio. (2001) REM NUT ion exchange plus struvite precipitation process. Proceedings of the 2nd International Conference on Phosphorus Recovery for Recycling from Sewage and Animal wastes, Noordwijkerhout, Holland. pp.12-14.
  6. Metcalf & Eddy. (2005) Wastewater Engineering, pp.1484-1485, McGraw-Hill, New York.
  7. Olson T.J., Ommen R.Van. (2004) Optimizing hydrocyclone design using advanced CFD model Original Research Article, Minerals Engineering, 17(5), pp.713-720. https://doi.org/10.1016/j.mineng.2003.12.008
  8. Rawn A.M., Banta A.P. and Pomeroy R. (1939) Multiple-stage sewage sludge digestion, Transections of ASCE, 105, pp.93-132.
  9. Safley L.M., Barker J.C., Robarge W.P. and Westerman P.W. (1982) Salt deposition in flush recycle systems, ASAE Paper 82-4533, pp.14-17.
  10. Yang Q., Lv W.j., Ma L. and Wang H.l. (2013) CFD study on separation enhancement of mini-hydrocyclone by particulate arrangement, Separation and Purification Technology, 102, pp.15-25. https://doi.org/10.1016/j.seppur.2012.09.018