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http://dx.doi.org/10.4491/eer.2011.16.4.243

Disinfection of Wastewater by UV Irradiation: Influence of Hydrodynamics on the Performance of the Disinfection  

Brahmi, Mounaouer (Water Research and Technology Center, University Tunis Carthage)
Hassen, Abdennaceur (Water Research and Technology Center, University Tunis Carthage)
Publication Information
Environmental Engineering Research / v.16, no.4, 2011 , pp. 243-252 More about this Journal
Abstract
Several mathematical relationships have been developed to describe bacterial responses to UV irradiation. Pseudomonas aeruginosa was taken as a bacterial model. The results obtained showed that the kinetics of disinfection is far to be as uniform. In fact, application of the model of Chick-Watson in its original form or modification, taking into account the speed change during the disinfection process, has not significantly improved results. The application of both models of Collins-Selleck and Hom constitute a major opportunity to simulate goodly the kinetics of UV disinfection. The results obtained showed that despite the major advantage held by applying the Hom model in this process of disinfection and for all strains studied, the model of Collins-Selleck gave the best results for the description of the UV inactivation process. The design of reactors, operating in continuous disinfection system, requires taking into account the hydrodynamic behaviour of water in the reactor. Knowing that a reduction of 4-log is necessary in the case of wastewater reuse for irrigation, a model integrating the expression of disinfection kinetics and the hydrodynamics through the UV irradiation room was proposed. The results highlight the interest to develop reactors in series working as four perfectly mixed reactors.
Keywords
Disinfection; Hydrodynamics; Kinetics model; Reactor of disinfection; Treated wastewater; UV radiation;
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  • Reference
1 Chan E. Evaluating the effectiveness of disinfection by chlorine in a tank [dissertation]. Montreal: Polytechnic School of Montreal; 2000.
2 National Water Research Institute (Canada), AWWA Research Foundation. Ultraviolet disinfection guidelines for drinking water and water reuse. Fountain Valley: National Water Research Institute; 2000.
3 Xiong L, Guo S. A two-parameter monthly water balance model and its application. J. Hydrol. 1999;216:111-123.   DOI   ScienceOn
4 Driedger AM, Rennecker JL, Marinas BJ. Sequential inactivation of Cryptosporidium parvum oocysts with ozone and free chlorine. Water Res. 2000;34:3591-3597.   DOI   ScienceOn
5 Barbeau B, Boulos L, Desjardins R, Coallier J, Prevost M. Examining the use of aerobic spore-forming bacteria to assess the efficiency of chlorination. Water Res. 1999;33:2941-2948.   DOI   ScienceOn
6 Kaymak B, Haas CN. Effect of initial microbial density on disinfection efficiency. In: Proceedings of American Water Works Association Annual Conference; 2001; Washington, DC.
7 Haas CN. Disinfection, water quality and treatment. In: American Water Works Association, ed. Water quality and treatment: a handbook of community water supplies. 4th ed. New York: McGraw-Hill; 1990 :879-904
8 Ben Messaoud A. Etude experimentale et modelisation d'un procede de desinfection par rayonnement UV [dissertation]. Toulouse: INSA Toulouse; 2009.
9 Haas CN, Karra SB. Kinetics of microbial inactivation by chlorine - I. Review of results in demand-free systems. Water Res. 1984;18:1443-1449.   DOI   ScienceOn
10 Haas CN, Karra SB. Kinetics of microbial inactivation by chlorine - II. Kinetics in the presence of chlorine demand. Water Res. 1984;18:1451-1454.   DOI   ScienceOn
11 Kerwick MI, Reddy SM, Chamberlain AH, Holt DM. Electrochemical disinfection, an environmentally acceptable method of drinking water disinfection? Electrochim. Acta 2005;50:5270-5277.   DOI   ScienceOn
12 Rubin AJ, Engel JP, Sproul OJ. Disinfection of amoebic cysts in water with free chlorine. J. Water Pollut. Control Fed. 1983;55:1174-1182.
13 James M. Montgomery Consulting Engineers. Water treatment principles and design. New York: Wiley; 1985. p. 262-281.
14 Berney M, Weilenmann HU, Ihssen J, Bassin C, Egli T. Specific growth rate determines the sensitivity of Escherichia coli to thermal, UVA, and solar disinfection. Appl. Environ. Microbiol. 2006;72:2586-2593.   DOI   ScienceOn
15 Kowalski WJ, Witham DL. UVGI systems for air and surface disinfection. Int. Ultrav. Assoc. News 2001;5:4-7.
16 Pruitt KM, Kamau DN. Mathematical models of bacterial growth, inhibition and death under combined stress conditions. J. Ind. Microbiol. 1993;12:221-231.   DOI
17 Qualls RG, Dorfman MH, Johnson JD. Evaluation of the efficiency of ultraviolet disinfection systems. Water Res. 1989;23:317-325.   DOI   ScienceOn
18 Water Pollution Control Federation. Task Force on Wastewater Disinfection. Wastewater disinfection. Alexandria: Water Environment Federation; 1996.
19 Kowalski WJ, Bahnfleth WP, Witham DL, Severin BF, Whittam TS. Mathematical modeling of ultraviolet germicidal irradiation for air disinfection. Quant. Microbiol. 2000;2:249-270.   DOI   ScienceOn
20 Wolfe RL. Ultraviolet disinfection of potable water: current technology and research needs. Environ. Sci. Technol. 1990;24:768-773.   DOI
21 Hassen A. Wastewater treatment and study of interactions microorganisms-heavy metals, and organic materials [dissertation]. Tunis: University of Sciences of Tunisia; 1998.
22 Shayeb H, Riabi T, Roustan M, Hassen A. Experimental study and modeling of chlorine disinfection of treated wastewater. J. Water. Sci. 1998;4:517-536.
23 Nicholson WL, Galeano B. UV resistance of Bacillus anthracis spores revisited: validation of Bacillus subtilis spores as UV surrogates for spores of B. anthracis Sterne. Appl. Environ. Microbiol. 2003;69:1327-1330.   DOI
24 Mamane-Gravetz H, Linden KG. UV disinfection of indigenous aerobic spores: implications for UV reactor validation in unfiltered waters. Water Res. 2004;38:2898-2906.   DOI   ScienceOn
25 Chiu K, Lyn DA, Savoye P, Blatchley ER. Integrated UV disinfection model based on particle tracking. J. Environ. Eng. 1999;125:7-16.   DOI   ScienceOn
26 Hom LW. Kinetics of chlorine disinfection in an ecosystem. ASCE J. Sanit. Eng. Div. 1972;98:183-194.
27 Mamane-Gravetz H, Linden KG. Relationship between physiochemical properties, aggregation and U.V. inactivation of isolated indigenous spores in water. J. Appl. Microbiol. 2005;98:351-363.   DOI   ScienceOn
28 Manas P, Pagan R. Microbial inactivation by new technologies of food preservation. J. Appl. Microbiol. 2005;98:1387-1399.   DOI   ScienceOn
29 Fair GM, Morris JC, Change SL, Well I, Burden RP. The behavior of chlorine as a water disinfectant. J. Am. Water. Works. Assoc. 1948;40:1051-1061.
30 George I, Petit M, Servais P. Use of enzymatic methods for rapid enumeration of coliforms in freshwaters. J. Appl. Microbiol. 2000;88:404-413.   DOI   ScienceOn
31 Emerging trends in UV disinfection. Aquionics News March 2007. Available from: http://halmapr.com/news/aquionics/emerging-trends-in-uv-disinfection/.
32 Eccleston B. UV intensity levels affected by water quality. Water. Technol. 1998;21:61-68.
33 American Air & Water Inc. UV water purification applications [Internet]. c2002-2011. Available from: http://www.americanairandwater.com/uv-water-applications.htm
34 Hassen A, Jemli M, Nabli M, Boudabous A. Disinfection of wastewater by ultraviolet radiation in a large-scale pilot plant: effect of low dose UV on Pseudomonas aeruginosa. Vector Environ. 1997;30:75-81.
35 Savoeurn P. Contribution to the study of Pseudomonas aeruginosa waterborne. Extraction and put into evidence of the toxicity of pyocyanin [dissertation]. Lorraine: University of Nancy; 1983.
36 Roustan M, Stambolieva Z, Duguet JP, Wable O, Mallevialle J. Influence of hydrodynamics on Giardia cyst inactivation by ozone. Study by kinetics and by "CT" approach. Ozone Sci Eng 1991;13:451-462.   DOI   ScienceOn
37 Brahmi M, Belhadi NH, Hamdi H, Hassen A. Modeling of secondary treated wastewater disinfection by UV irradiation: effects of suspended solids content. J. Environ Sci. 2010;22:1218-1224.   DOI   ScienceOn
38 Trussell RR, Chao JL. Rational design of chlorine contact facilities. J. Water Pollut. Control Fed. 1977;49:659-667.
39 Hart FL, Vogiatzis Z. Performance of modified chlorine contact chamber. J. Environ. Eng. Div. 1982;108:549-561.
40 Haas CN. Disinfection. In: Letterman RD, American Water Works Association, eds. Water quality and treatment: a handbook of community water supplies. 5th ed. New York: McGraw-Hill; 1999. p. 14.1-14.60.
41 Leahy JG, Rubin AJ, Sproul OJ. Inactivation of Giardia muris cysts by free chlorine. Appl. Environ. Microbiol. 1987;53:1448-1453.
42 Kamani H, Vaezi F, Nabizadeh R, Mesdaghinia AR, Alimohammadi M. Application of medium pressure UV lamp for wastewater disinfection of milk production industry. J. Appl. Sci. 2006;6:731-734.   DOI
43 Oparaku NF, Mgbenka BO, Ibeto CN. Waste water disinfection utilizing ultraviolet light. J. Environ. Sci. Technol. 2011;4:73-78.   DOI