Modeling of variations in nitrogen trichloride concentration over time in swimming pool water
| Autor: | Noël Midoux, Anaelle Cloteaux, Fabien Gérardin |
|---|---|
| Přispěvatelé: | Laboratoire Procédé et épuration des polluants (PROCEP), Département Ingénierie des procédés (IP), Institut national de recherche et de sécurité (Vandoeuvre lès Nancy) (INRS ( Vandoeuvre lès Nancy))-Institut national de recherche et de sécurité (Vandoeuvre lès Nancy) (INRS ( Vandoeuvre lès Nancy)), Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Work (thermodynamics)
Environmental Engineering General Chemical Engineering 0207 environmental engineering chemistry.chemical_element 02 engineering and technology 010501 environmental sciences 01 natural sciences Swimming pool water 6. Clean water chemistry.chemical_compound chemistry Environmental chemistry Chlorine Environmental Chemistry [CHIM]Chemical Sciences Water treatment Occupational exposure 020701 environmental engineering Safety Risk Reliability and Quality Nitrogen trichloride 0105 earth and related environmental sciences |
| Zdroj: | Process Safety and Environmental Protection Process Safety and Environmental Protection, Elsevier, 2015, 94, pp.452-462. ⟨10.1016/j.psep.2014.10.004⟩ |
| ISSN: | 0957-5820 |
| Popis: | International audience; In water, chlorine reacts with nitrogen-containing compounds to produce disinfection by-products such as nitrogen trichloride which induces ocular and respiratory irritations in swimming pool workers. This study proposes a model to predict variations in NCl3 concentration over time in a traditional indoor swimming pool as a function of its operating parameters and attendance. The model was developed taking into consideration the reaction mechanisms, thermodynamic equilibria, physico-chemical properties, and transfer mechanisms occurring at the pool's surface. This model was validated through a robust series of experiments over two days and two nights in a real swimming pool. The model was found to satisfactorily predict variations over time in the concentrations of the chemical species investigated, including nitrogen trichloride. The work presented constitutes a first step to extend the model at different swimming pools. This approach may also be used to study the influence of the main operating parameters and to evaluate the impact of setting up water treatment systems on nitrogen trichloride concentration. |
| Databáze: | OpenAIRE |
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