Radiotracer investigations of municipal sewage treatment stations

• Autorzy: Farooq M. , Khan I. , Ghiyas-ud-Din , Gul S. , Palige J. , Dobrowolski A.
• Języki publikacji: EN

Abstrakty

EN

Tracer techniques, which are well-established methods in process dynamics studies in industry, were applied to investigate the dynamics of sewage treatment process. The concept of residence time distribution (RTD) was used to investigate the efficiency of the primary clarifier, aeration tank and secondary clarifier of a sewage treatment plant. Preliminary treatment and modeling of the tracer data was performed using the software DTS Pro Ver. 4.20. A big short - circuiting (by-passing) with a large volume of stagnant zones were found in the primary and secondary clarifiers, while no stagnant zone was detected in the aeration tank.

Słowa kluczowe

EN

wastewater treatment; residence time distribution; activated sludge; radiotracer

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2003
• Tom: Vol. 48, nr 1
• Strony: 57--61
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Farooq M.

• Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan

autor

Khan I.

• Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan

autor

Ghiyas-ud-Din

• Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan

autor

Gul S.

• Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan

autor

Palige J.

• Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Dobrowolski A.

• Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: [phone], Fax: [phone]

Bibliografia

• 1. Arden E, Lockett WT (1914) Experiments on the oxidation of sewage without the aid of filters. J Soc Chem Ind 33:523−534
• 2. Arden E, Lockett WT (1914) Experiments on the oxidation of sewage without the aid of filters. Part II. J Soc Chem Ind 33:1122−1132
• 3. Arden E, Lockett WT (1915) Experiments on the oxidation of sewage without the aid of filters. Part III. J Soc Chem Ind 34:937−948
• 4. Chmielewski AG, Owczarczyk A, Palige J (1998) Radiotracer investigations of industrial wastewater equalizer-clarifiers. Nukleonika 43;2:185−194
• 5. Danckwerts PV (1953) Continuous flow systems: distribution of residence times. Chem Eng Sci 2:1−17
• 6. Leclerc JP (2000) Software DTS Pro ver. 4.20: Instruction manual. PROGEPI, Nancy
• 7. Levenspiel O (1972) Chemical reaction engineering, 2nd ed. Wiley, New York
• 8. Levenspiel O, Turner JCR (1970) The interpretation of residence time experiments. Chem Eng Sci 25:1605−1609
• 9. Niemi AJ (1977) Residence time distributions of variable flow processes. Int J App Rad Isot 28:855−860
• 10. Thýn J, Burdych J, Blaha L, Zitny R (1992) Radiotracer applications in wastewater treatment. In: Applications of isotopes and radiation in conservation of the environment. IAEA-SM-325/129. IAEA, Vienna, pp 239−256
• 11. Thýn J, Zitny R (1996) Residence Time Distribution Software Analysis. IAEA, Vienna
• 12. Thýn J, Zitny R, Kluson J, Cechak T (2000) Analysis and diagnostics of industrial processes by radiotracers and radioisotope sealed sources. CVUT, Praha