Kinetic of Disinfection reaction by Sodium Hypochlorite Solution
DOI:
https://doi.org/10.31699/IJCPE.2018.1.6Keywords:
Selleck model, coliform bacteria, disinfection, sodium hypochlorite, and chlorineAbstract
The present studier aims to study the kinetic of reaction at different experimental conditions depending on coliform bacteria concentration and hypochlorite ion. The effects that had been investigated were different of sodium hypochlorite doses, contact time, pH and temperature (20, 29, 37) o C. The water samples were taken from Al-Wathba water treatment plant in Risafa side of Tigris River in Baghdad. The biological tests included the most probable number (M.P.N) for indicating the concentration of coliform bacteria with different contact times and the total plate count (T.P.C) for indicating the amount of colonies for general bacteria. The iodimetry method (chemical test) was used for indicating the concentration of hypochlorite ion with different contact times. Different models were examined to fit the experimental data including the kinetics power law (first and second order) and Selleck model. It was found that the Selleck model fitted well the experimental data in which degree of Selleck model was equal to two and the rate constants was 1.3791 x 10-5 L / (mole min) at 20o C, 3.0806 x 10-5 L / (mole min) at 29oC, and 5.738 x 10-5 L / (mole min) at 37o C.
References
Seymour, S. B., (2001), “Disinfection, Sterilization and Preservation”, 5th edition. Lippincott Williams and Wilkins, chapter 3, pp: 201.
Al Samarae, R. H., (2001), “Effection of Economical on The Quality of The Drinking Water in Baghdad City and The Damage on the Citizens Health”, M.Sc. Thesis, Baghdad University, Environmental Engineering Department.
Boccelli, D. L., Tryby, M. E., Uber, J. M., and Summers, R.S., (2003), “A Reactive Species Model for Chlorine Decay and THM Formation Under Rechlorination Conditions”, Water Research, Vol. 37, No. 1 pp: 2654- 2666.
Kopfler, R.C., and Bull, R.J., (1991), “Health Effects of Disinfectants and Disinfection by-Products”, Journal AWWA, Vol. 49. No.5 pp: 87- 95.
Bielmeier, S.R., Best, D.S., Guidici, D.L. and Narotsky, M.G., (2001), “Prenancy Loss in The Rat Caused by Bromodichloromethane”, Toxicology Sci., Vol. 59, No. 2, pp: 15- 309.
Gang, D. D., Segar, R. L., Clevenger, T. E. and Banerji, S. K., (2002), “Using Chlorine Demand to Predict TTHMs and HAA9 Formation”, Journal AWWA, Vol. 94, No. 10, pp: 76- 86.
Who Seminar Pack for Drinking-Water Quality. “Disinfectants and Disinfection by-products”, (1993).www.who.int/water_sanitation_health/dwq/S13.pdf
Rajput, V. S., and Polprasert, C., (1984), “Study on Chlorine Disinfection of Pond Effluent”, Water Research, Vol. 18, No. 5, pp: 513- 518.
Bolyard, M., Fair, P. S., and Hautman, D. P., (1993), “Sources of Chlorate Ion in US Drinking Water”, Journal AWWA, Vol. 85, No. 9, pp: 81- 87.
Chris, B., and martin, K., (2009), “Basic Water Treatment”, 4th edition, Thomas Telford Limited, 1 Heron Quay, London E14 4JD, UK, chapter 12, pp: 214.
“Coliform Bacteria and Drinking Water” (2009). www.ewashtenaw.org/government/.../eh_coliformfactsheet.pdf
Department of Environmental Quality, “Coliform Bacteria Fact Sheet” (2009).
www.michigan.go/.../dep/dep-wcuColiformbactiwellwatersampling-270604-7.pdf
Slyter, L. L., and Rumsey, T. S., (1991), “Effect of Coliform Bacteria, Feed Deprivation by Steer or Continuous-Culture Microbial Populations Changed from Forage to Concentrates”, Journal of Animal Science, Vol. 69, pp: 3055-3066.
APHA Standard Methods for the Examination of Water and West Water, (2005), 21st edition. American Public Health Association, Washington D. C., pp: 61- 188.
Levenspiel, O., (1999), “Chemical Reaction Engineering”, 3rd edition, Johan Wiley and Sons, chapter 3, pp: 39- 44.
Kerry, H., John, C. C., David, W., Hand, R., Rhodes, T., and George, T., “Water Treatment Principles and Design”, (2012), 3rd edition, John Wiley & Sons, chapter 13, pp: 532- 538.
Gordon, G., Adam, L., and Bubnis, B., (1995), “Minimizing Chlorate Ion Formation”, Journal AWWA, Vol. 87, No. 6, pp: 97-106.
Lee, Y., and Nam, S., (2002), “Reflection on Kinetic Model to the Chlorine Disinfection for Drinking Water Production”, The Journal of Microbiology, Vol. 40, No. 2, pp: 119- 124.
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