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RTD Analysis using Radioisotope Tracer on the Water Flow Characteristics in a Flocculator of Wastewater Treatment Facility  

Kim, Jin-Seop (Radioisotope Research & Development Lab., Korea Atomic Energy Research Institute)
Jung, Sung-Hee (Radioisotope Research & Development Lab., Korea Atomic Energy Research Institute)
Kim, Jong-Bum (Radioisotope Research & Development Lab., Korea Atomic Energy Research Institute)
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Abstract
Using In-113m emitting gamma ray of 0.392MeV at radioisotope tracer the RTD (residence time distribution) of water in the flocculator of wastewater treatment facility was measured. The result was analyzed mathematically using K-RTD program constructed on the basis of CFSTR (constant flow stirred tank reactor) model. The mean residence time and the tank number are the main parameters which describe the flow behavior of the system. Those parameters were obtained in the fitting profess of the simulated curves to the experimental results. It was suggested to construct a modified numerical model to describe the bypass flow which was observed in the experiment.
Keywords
Radiation; Radioisotope Tracer; Residence Time Distribution; Reactor; CFSTR;
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  • Reference
1 IAEA, 'Guidebook on Radioisotope Tracers in Industry,' Technical report No. 316, pp. 39-68, IAEA, Vienna, (1990)
2 Octave Levenspiel, B.W. Lai and C.Y. Chatlynne, 'Tracer curves and the residence time distribution,' Chem. Eng. Sci., Vol. 25, pp. 1611-1613, (1970)   DOI   ScienceOn
3 Z. Stegowski, 'Accuracy of the residence time distribution function parameters,' Nucl. Geophys. Vol.7, No.2, pp. 335-341, (1993)
4 IAEA, 'Guidebook on Radioisotope Tracers in Industry', Technical report No. 316, pp. 102-103, IAEA, Vienna, (1990)
5 A. D. Martin, 'Interpretation of residence time distribution data, ' Chem. Eng. Sci., Vol. 55, pp. 5907-5917, (2000)   DOI   ScienceOn
6 J. S. Charlton, 'Radioisotope Techniques for Problem Solving in Industrial Process Plant,' Leonard Hill, London, pp. 84-96, (1986)
7 C. G. Clayton, Spackman, R. and Ball, A. M., 'The accuracy and precision of liquid flow measurement by radioactive isotopes,' Proceedings of the Symposium on Radioisotope Tracers in Industry and Geophysics, Prague in 1966, IAEA, Vienna pp. 563, (1967)
8 J. Thyn and R. Zitny, 'Problems of residence time distribution analysis with applications of radiotracers,' Journal of Radioanalytical and Nuclear Chemistry, Articles, Vol.205, No.2, pp. 225-233, (1996)   DOI
9 P.V. Danckwerts, 'Continuous flow systems distribution of residence times,' Chem. Eng. Sci. Vol.2, No.1, pp. 1-18, (1953)   DOI   ScienceOn
10 한국원자력연구소, 체류시간분포 분석 프로그램; K-RTD, (1999)
11 Octave Levenspiel and J.C.R. Turner, 'The interpretation of residence-time experiments,' Chem. Eng. Sci., Vol. 25, pp. 1605-1609, (1970)   DOI   ScienceOn
12 H. Weinstein and R.J. Adler, 'Micromixing effects in continuous chemical reactors,' Chem. Eng. Sci., Vol.22, pp. 65-75, (1967)   DOI   ScienceOn
13 Guo-Hua Hu, 'Modeling and on-line measurement of overall and local residence time distribution in extruder reactors,' Proceedings of the First International Congress on Tracers and Tracing Methods, CNRS-ENSIC, Nancy, pp. 153-160, (2001)