Population mobility and urban wastewater dynamics.

Autor: Atinkpahoun CNH; Laboratoire Réactions et Génie des Procédés (UMR 7274 CNRS), Université de Lorraine, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France; Unité de Recherche en Ecotoxicologie et Etude de Qualité/Laboratoire d'Etude et de Recherche en Chimie Appliquée/Université d'Abomey-Calavi, 01 BP 2009, Cotonou, Benin., Le ND; Laboratoire Réactions et Génie des Procédés (UMR 7274 CNRS), Université de Lorraine, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France; Danang University of Science and Technology, The University of Danang, 54 Nguyen Luong Bang, Đà Nẵng, Viet Nam., Pontvianne S; Laboratoire Réactions et Génie des Procédés (UMR 7274 CNRS), Université de Lorraine, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France., Poirot H; Laboratoire Réactions et Génie des Procédés (UMR 7274 CNRS), Université de Lorraine, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France., Leclerc JP; Laboratoire Réactions et Génie des Procédés (UMR 7274 CNRS), Université de Lorraine, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France; INRS, 1 rue du Morvan, CS60027, 54519 Vandœuvre Cedex, France., Pons MN; Laboratoire Réactions et Génie des Procédés (UMR 7274 CNRS), Université de Lorraine, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France; LTSER-Zone Atelier Bassin de la Moselle, LRGP, Université de Lorraine, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France. Electronic address: marie-noelle.pons@univ-lorraine.fr., Soclo HH; Unité de Recherche en Ecotoxicologie et Etude de Qualité/Laboratoire d'Etude et de Recherche en Chimie Appliquée/Université d'Abomey-Calavi, 01 BP 2009, Cotonou, Benin.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2018 May 01; Vol. 622-623, pp. 1431-1437. Date of Electronic Publication: 2017 Dec 18.
DOI: 10.1016/j.scitotenv.2017.12.087
Abstrakt: Dynamic influent models, which have been proposed to test control strategies using virtual wastewater treatment plants, should be as realistic as possible. The number of inhabitants in the catchment at any given time and their ways of life are among the parameters affecting the quality of these models. Census data related to work and school commutes were used to evaluate the number of people present in a given urban area. Based on the example of a large urban catchment (Grand Nancy, France), the results show that a population increase of 30% could occur during working hours resulting from the imbalance between workers leaving and coming into the catchment. Combined with information related to the local way of life, variation in the population helps to explain changes in wastewater flow rate and pollution (carbon, nitrogen, phosphorus and heavy metals), which present several maxima reflecting daily activities, such as bladder voiding, meals, the use of washrooms, etc. However, no well-defined variation patterns for pH and conductivity, which are linked to the concentrations of anions and cations in the wastewater, were observed. Slight reductions (up to 10% on Sundays) in the flow and pollution load were observed on weekends as the commuter flow decreased. Census data proved to be efficient in helping to understand the daily pattern of urban wastewater characteristics.
(Copyright © 2017 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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