Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
권호 표지
DOI QR코드

DOI QR Code

Status and Efficiency of Wastewater Sea Outfalls in Korea

  • Kwon Seok-Jae (Division of Civil, Urban & Geosystem Engineering, Seoul National University) ;
  • Seo Il-Won (Division of Civil, Urban & Geosystem Engineering, Seoul National University) ;
  • Lee Joong-Woo (Division of Civil and Environment, National Korea Maritime University) ;
  • Kim Young-Do (School of Environmental Science and Engineering, Inje University)
  • Published : 2005.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

This study provided the status and efficiency of the domestic wastewater sea outfalls based on the previous numerical and experimental studies for the analysis of the buoyant discharges from Rosette diffuser in shallow water. The VISJET model and the hybrid model proposed by Kim (2002) can be proper models for the domestic sea outfalls. The experimental results show that the merging height for MBR and MIR depends on the riser diameter and spacing between risers, and the bending characteristics of the buoyant discharges in still ambient water have significant impacts on the dilution. The current wastewater outfall systems in Korea are not effective for the environmental aspect due to the low discharge water depth. The strategies to reduce the contamination near the domestic wastewater outfalls were found to require the sufficient discharge water depth, proper diffuser location considering the tidal currents, enough riser diameter, and sufficient spacing between risers.

Keywords

References

  1. Brooks, N. H. (1972), 'Dispersion In Hydrologic and Coastal Environments.' California Institute of Technology Technical Report KH-R-29, W. M. Keck Laboratory of Hydraulics and Water Resources Division of Engineering and Applied Science, Pasadena, California
  2. Cederwall, K. (1968), 'Hydraulics of Marine Wastewater Disposal.' Hydraulic Division Report No. 42, Chalmers Institute of Technology, Goteborg, Sweden
  3. Jirka, G. H. and Akar, P. J. (1991), 'Hydrodynamic Classification of Submerged Multiport-Diffuser Discharges.' Journal of Hydraulic Engineering, ASCE, 117(9), pp. 1113-1128 https://doi.org/10.1061/(ASCE)0733-9429(1991)117:9(1113)
  4. Kang, S. W., Seo, I. W., Lee, Y. K., and Kwon, Y. T. (2002), 'Engineering Development for Optimizing Ocean Outfall Diffusing System', Korea Ocean Research & Development Institute, Ministry of Environment, Korea (in Korean)
  5. Kim, Y. D. (2002), 'Jet Integral-Particle Tracking Hybrid Model for the Mixing of Wastewater from Ocean Outfalls.' PhD thesis, Dept. of Civil Engineering, Seoul National Univ., Seoul, Korea
  6. Kim, Y. D., Seo, I. W., Kang, S. W., and Oh, B. C. (2001), 'Modeling the Mixing of Wastewater Effluent Discharged from Ocean Outfalls using a Hybrid Model.' Coastal Engrg. Journal, World Scientific Publishing Company and Japan Society of Civil Engineers, 43(4), pp. 259-288 https://doi.org/10.1142/S0578563401000372
  7. Kwon, S. J. (2005), 'Behavior of buoyant discharges from a Rosette-type diffuser.' PhD thesis, Dept. of Civil Engineering, Seoul National Univ., Seoul, Korea
  8. Kwon, S. J. and Seo, I. W. (2005), 'Experimental Investigation of Wastewater Discharges from a Rosette-type Riser Using PIV.' Korean Society of Civil Engineers, 9(5), pp. 355-362 https://doi.org/10.1007/BF02830626
  9. Kwon, Y. T. and Lee, C. W. (1998), 'Heavy Metals Contamination in Coastal Sediments between the Large Discharge from Wastewater Treatment Plant.' J. KSMEE, 1(1), pp. 83-92 (in Korean)
  10. Lee, J. H. W., Cheung, V., Wang, W. P., and Cheung, S. K. B. (2000), 'Lagrangian Modeling and Visualization of Rosette Outfall Plumes.' Proc. Hydroinformatics 2000, Iowa, July 23-27 (CDROM)
  11. Roberts, P. J. W. and Snyder, W. H. (1993a), 'Hydraulic Model Study for Boston Outfall. I: Riser Configuration.' Journal of Hydraulic Engineering, ASCE, 119(9), pp. 970-987 https://doi.org/10.1061/(ASCE)0733-9429(1993)119:9(970)
  12. Roberts, P. J. W. and Snyder, W. H. (1993b), 'Hydraulic Model. Study for Boston Outfall. II: Environmental Performance.' Journal of Hydraulic Engineering, ASCE, 119(9), pp. 988-100 https://doi.org/10.1061/(ASCE)0733-9429(1993)119:9(988)
  13. Seo, I. W.,. Kwon, S. J., and Yeo, H. K. (2004), 'Merging characteristics of buoyant discharges from Rosette-type diffusers in shallow water.' J. Civil Eng., KSCE, 8(6), pp. 679-688 https://doi.org/10.1007/BF02823559
  14. Yeo, H. K. (2000), 'Experimental Study of Mixing Behavior of Alternating Diffuser for Wastewater Discharge.' PhD Thesis, School of Civil, Urban and Geosystem Engineering, Seoul National University, Seoul, Korea (in Korean)