In this work a simple but comprehensive protocol for ultraviolet (UV) pilot plant studies was developed in order to meet the microbiological guidelines established by the Andalusian Regional Government (ARG) and Aguas de Jerez, Empresa Municipal, S.A. (AJEMSA). For this purpose, two pilot UV disinfection systems were tested at the municipal wastewater treatment plant in Jerez de la Frontera (Spain) over a period of thirteen months. Both pilot units were operated using unfiltered secondary wastewater. The results obtained from the pilot plant experiments suggest that an average UV dose of 50 mW s/cm2 is sufficient to meet required microbiological quality standards. The quality of the unfiltered wastewater shows that turbidity and total suspended solids could serve as good indicators for UV transmittance variations. The key parameters for an optimum protocol definition are temporal wastewater characterization, the planning and executing of UV disinfection experiments, determining the hydraulic behaviour of the UV channel, calculating the UV dose applied and, finally, evaluating experimental data.
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February 2008
This article was originally published in
Journal of Water Supply: Research and Technology-Aqua
Article Contents
Research Article|
February 01 2008
Pilot plan protocol for optimization of UV dose required to obtain an appropriate municipal wastewater disinfection
I. Salcedo Dávila;
I. Salcedo Dávila
3Environmental Engineering Division Hydraulics, Coastal and Environmental Engineering Department, Technical University of Catalonia, Barcelona, Spain
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J. A. Andrade Balao;
J. A. Andrade Balao
2Aguas de Jerez, Empresa Municipal, S.A., Jerez de la Frontera, Spain
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J. M. Quiroga Alonso;
J. M. Quiroga Alonso
1Department of Chemical Engineering, Food Technologies and Environmental Technologies, University of Cadiz, Cadiz, Spain
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E. Nebot Sanz
1Department of Chemical Engineering, Food Technologies and Environmental Technologies, University of Cadiz, Cadiz, Spain
Tel.: 34 956 016198; E-mail: [email protected]
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Journal of Water Supply: Research and Technology-Aqua (2008) 57 (1): 57–63.
Article history
Received:
September 05 2006
Accepted:
June 25 2007
Citation
I. Salcedo Dávila, J. A. Andrade Balao, J. M. Quiroga Alonso, E. Nebot Sanz; Pilot plan protocol for optimization of UV dose required to obtain an appropriate municipal wastewater disinfection. Journal of Water Supply: Research and Technology-Aqua 1 February 2008; 57 (1): 57–63. doi: https://doi.org/10.2166/aqua.2008.072
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