Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Royaume Uni → Definition of an on-line monitoring system for water quality control in a semi-arid environment : the case of Llobregat river (Spain)

Cranfield University (2007)

Definition of an on-line monitoring system for water quality control in a semi-arid environment : the case of Llobregat river (Spain)

Ferrer Mallen, Olga

Titre : Definition of an on-line monitoring system for water quality control in a semi-arid environment : the case of Llobregat river (Spain)

Auteur : Ferrer Mallen, Olga

Université de soutenance : Cranfield University

Grade : Master of Science 2007

Résumé
The Water Framework Directive (WFD) is a piece of legislation agreed by the European Parliament and the Council on 23rd October 2000. It sets very ambitious objectives and time scales and therefore it becomes a challenge for Member States to implement it. This Directive requires an integrated approach to protect all waters. It aims to prevent deterioration of the quality of all water bodies and therefore enhance the status of aquatic ecosystems. There is a guideline of which elements should be considered when classifying waterbodies’ quality but due to the great differences between European regions they are not totally defined, offering a degree of flexibility to Member States. In this thesis, the various quality indices (biological, hydromorphological and physicochemical)have been reviewed and defined, in order to develop a more comprehensive understanding of them. Furthermore, Catalan, Spanish and British elements have been contrasted, aiming to analyse different perspectives. The Barcelona water supply system should be considered as a very atypical and challenging case among Europe because the drinking water supplied is from three different origins (in the near future four). These comprise of the Llobregat River, TerRiver, underground water and desalted sea water. Both rivers flow through areas deeply stressed and where, historically, significant waste disposals have occurred. The most extreme case is the Llobregat River, which has a high salt content and the addedc omplication of trihalomethane formation during chlorination in potabilisation plants. Facing the Catalan river scenario and the one defined by the WFD, a surveillance monitoring strategy has been proposed, after studying the basin characteristics, its pollution type and location, its water quality, emerging technologies and availableequipment among other elements. This system consists of on-line monitoring equipments et in strategic points along Llobregat basin in order to provide frequent real time information of its water physico-chemical characteristics by measuring general parameters and priority substance concentration

AGRIS

Page publiée le 24 mai 2011, mise à jour le 18 octobre 2018