International Journal of Applied Science and Engineering
Published by Chaoyang University of Technology

T.Y. Paia*, H.G. Leub, C.F. Chiangc, C.J. Tzengd, S.C. Wanga

a Department of Environmental Engineering and Management, Chaoyang University of Tech-nology, Wufeng, Taichung, 41349, Taiwan
b Environmental Protection Administration, Taipei, 10042, Taiwan
c Department of Health Risk Management, China Medical University, Taichung 40402, Taiwan
d Water and Environmental Engineering Department, CECI Engineering Consultants, Inc., Taipei, 106, Taiwan


 

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ABSTRACT


In this study, a mathematical model based on the kinetic of Activated Sludge Model was established to describe the transformation of nitrogen compounds including nitrate and nitrite nitrogen, ammonia and ammonium nitrogen, soluble biodegradable organic nitrogen, and particulate biodegradable organic nitrogen in sewer. Then the effects of varied flow conditions and different initial dissolved oxygen (DO) concentrations on nitrification and denitrification were explored. The results showed that these four compounds were transformed during the transportation process. According to simulation, when DO varied and flow velocities were fixed, all nitrogen compounds varied slightly excepting nitrite and nitrate nitrogen. When initial DO was fixed, the different reaction time due to different flow velocity affected the nitrogen transformation significantly. Removal of nitrogen compounds was better when reaction time was greater.


Keywords: Sewer system; mathematical model; nitrogen; aerobic; anaerobic.


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REFERENCES


  1. [1] Nielsen P. H., Raunkjær K., Norsker N. H., Aa Jensen N., and Hvitved-Jacobsen T. 1992. Transformation of wastewater in sewer systems - a review. Water Science and Technology, 25(6): 17-31.

  2. [2] Bjerre H. L., Hvitved-Jacobsen T, Teichgraber B., and te Heesen D. 1995. Experimental procedures characterizing transformations of wastewater organic matter in the Ernscher river. Germany, Water Science and Technology, 31, 7: 201-212.

  3. [3] Bjerre H. L., Hvitved-Jacobsen T., Schlegel S., and Teichgraber B. 1998. Biological activity of biofilm and sediment in the Ernscher river, Germany, Water Science and Technology, 37, 1: 9-16.

  4. [4] Vollertsen J., and Hvitved-Jacobsen T. 1998. Aerobic microbial transformations of resuspended sediments in combined sewers- a conceptual model, Water Science and Technology, 37(1): 69-76.

  5. [5] Tanaka N., and Hvitved-Jacobsen T. 1998. Transformation of wastewater organic matter in sewers under changing aerobic/anaerobic conditions, Water Science and Technology, 37(1): 105-113.

  6. [6] Pai T. Y., Ouyang C. F., Liao Y. C., and Leu H. G. 2000. Oxygen transfer in gravity flow sewer, Water Science and Technology, 42, 3-4: 417-422.

  7. [7] Pai T. Y., Chung H., Ho H. H., and Shiu T. W. 2006. Sewage quality variation and quantification of microbial function groups in a trunk sewer line, 5th World Congress of the IWA, September 10-14, Beijing, China.

  8. [8] Henze M., Gujer W., Mino T., and van Loosdrecht MCM. 2000. “Activated sludge models: ASM1, ASM2, ASM2d and ASM3”, International Water Association, London. England.

  9. [9] Pai T. Y., Ouyang C. F., Su J. L., and Leu H. G. 2001a. Modeling the stable effluent qualities of the A2O process with Activated Sludge Model 2d under different return supernatant, Journal of the Chinese Institute of Engineers, 24, 1: 75-84.

  10. [10] Pai T. Y., Ouyang C. F., Su J. L., and Leu H. G. 2001b. Modelling the steady-state effluent characteristics of the TNCU process under different return mixed liquid, Applied Mathematical Modelling, 25, 12: 1025-1038.

  11. [11] Pai T. Y., Tsai Y. P., Chou Y. J., Chang H. Y., Leu H. G., and Ouyang C. F. 2004a. Microbial kinetic analysis of three different types of EBNR process, Chemosphere, 55, 1: 109-118.

  12. [12] Pai T. Y., Chuang S. H., Tsai Y. P., and Ouyang C. F. 2004b. Modelling a combined anaerobic/anoxic oxide and rotating biological contactors process under dissolved oxygen variation by using an activated sludge - biofilm hybrid model, Journal of Environmental Engineering, ASCE, 130, 12: 1433-1441.

  13. [13] Pai T. Y. 2007. Modeling nitrite and nitrate variations in A2O process under different return oxic mixed liquid using an extended model, Process Biochemistry, 42, 6: 978-987.

  14. [14] Hvitved-Jacobsen T., Vollertsen J., and Nielsen P. H. 1998a. A process and model concept for microbial wastewater transformations in gravity sewers, Water Science and Technology, 37, 1: 233-241.

  15. [15] Hvitved-Jacobsen, T., Vollertsen J., and Tanaka N. 1998b. Wastewater quality changes during transport in sewers - an integrated aerobic and anaerobic model concept for carbon and sulfur microbial transformations, Water Science and Technology, 38, 10: 257-264.

  16. [16] Butler D., Friedler E., and Gatt K. 1995. Characterising the quantity and quality of domestic wastewater inflows, Water Science and Technology, 31, 7: 13-24.

  17. [17] Jimenez C. B., and Landa V. H. 1998. Physico-chemical and bacteriological characterization of wastewater from Mexico city, Water Science and Technology, 37, 1: 1-8.

  18. [18] Seidl M., Servais P., Martaud M., Gandouin C., and Mouchel J. M. 1998. Organic carbon biodegradability and heterotrophic bacteria along a combined sewer catchment during rain events, Water Science and Technology, 37, 1: 25-33.

  19. [19] Delgado S., Alvarez M., Aguiar E., and Rodríguez-Gómez L. E. 1998. Effect of dissolved oxygen in reclaimed wastewater transformation during transportation. Case study: Tenerife, Spain, Water Science and Technology, 37, 1: 123-130.

  20. [20] Eckenfelder W. W., and Musterman J. L. 1995. “Activated Sludge Treatment of Industrial Wastewater”, Technomic publishers, Pennsylvania.

  21. [21] Gerald, C. F., and Wheatley P. O. 1989. “Applied Numerical Analysis”. 4th Ed. Addison-Wesley, New York, USA.


ARTICLE INFORMATION




Accepted: 2008-07-07
Available Online: 2008-04-01


Cite this article:

Pai, T.Y., Leu, H.G., Chiang, C.F., Tzeng, C.J., Wang, S.C.  2008. Simulating transformation of nitrogen components in sewer system when oxygen and flow velocity changed. International Journal of Applied Science and Engineering, 6, 1–9. https://doi.org/10.6703/IJASE.2008.6(1).1


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