Browse > Article
http://dx.doi.org/10.5293/KFMA.2006.9.5.022

Flow Analysis of the Rotating Sludge Suction Collector by Numerical Simulation  

Suh, Sang-Ho (숭실대학교 기계공학과)
Roh, Hyung-Woon (아이베이)
Byun, Jong-Youn (효림산업(주))
Publication Information
The KSFM Journal of Fluid Machinery / v.9, no.5, 2006 , pp. 22-27 More about this Journal
Abstract
Sedimentation phenomenon of suspended solids occurs by the gravitational force. Pollution particles are separated from slowly flowing waste water in clarifier. Recently, the sludge suction collector is Preferred rather than the scraper type sludge collector due to the enhancement of the clarifier efficiency. The sludge suction collector is usually operated by the user's experiences without any scientific and/or technical consideration. To evaluate the performance of sludge suction collector, the three dimensional numerical simulation was conducted by the finite volume method. To analyze the performance, the velocity vectors and the suction flow rates of the orifices were investigated. The result showed that each suction flow rate through out the collector was equivalent in the sludge suction collector and the efficiency of suction collector was good to remove high concentrated sludge in clarifier.
Keywords
Sludge Suction Collector; Clarifier; Orifice; Flow Characteristics; Numerical simulation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Metcalf & Eddy INC., 1991, WASTEWATER ENGINEERING Treatment, Disposal and Reuse, Third Edition, McGraw-Hill Inc
2 환경부, 1998, 하수도 시설기준, 한국수도협회, pp.364-376
3 환경부, 1997, 상수도 시설기준, 한국수도협회, pp.258-259
4 Patankar, S. V., 1980, Numerical Heat Transfer and Fluid Flow, McGraw-Hill, N.Y
5 Rhie, C. M. and Chow, W. L., 1983, 'Numerical Study of Turbulent Past an Airfoil with Trailing Edge Separation,' AIAA J., Vol. 21, pp. 1527-1532
6 Spalding, D. B., 1972, 'A Novel Finite Difference Formulation for Differential Expressions Involving Both First and Second Derivatives,' Int. J. Num. Meth. Eng., Vol. 4, pp. 551-559   DOI   ScienceOn
7 Jang, D. S., Jetli, R. and Acharya, S., 1986, 'Comparison of the PISO, SIMPLER, and SIMPLE-C Algorithms for Treatment of the Pressure-Velocity Coupling in Steady Flow Problems,' Numerical Heat Transfer, Vol. 10, pp. 209 - 228   DOI   ScienceOn
8 CFX4.4, User Manual, 1997, AEA Industrial Technology Harwell Lab., United Kingdom
9 Mogens Henze & Rene Dupont, 1993, Rising sludge in secondary settlers due to denirification, Wat. Res. Vol. 27, No. 2, pp. 231-236   DOI   ScienceOn