http://archives.univ-biskra.dz/handle/123456789/4184 Mon, 06 Apr 2026 22:43:38 GMT 2026-04-06T22:43:38Z http://archives.univ-biskra.dz/handle/123456789/4344 Titre: DECISION SUPPORT SYSTEM FOR THE MANAGEMENT AND MAINTENANCE OF SEWER NETWORKS Auteur(s): BOUAMRANE A; BOUZIANE M.T; BOUTEBBA K Résumé: This paper aims to develop a decision support tool to provide solutions to the problems of sewer networks management/maintenance in order to assist the manager to sort sections upon priority of intervention by taking account of the technical, economic, social and environmental standards as well as the managers’ strategy. This solution uses the Analytic Network Process (ANP)developed by Thomas Saaty, coupled with a set of tools for modelling and collecting integrated data from a geographic information system (GIS). It provides to the decision maker a tool adapted to the reality on the ground and effective in usage compared to the means and objectives of the manager. Wed, 26 Nov 2014 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/4344 2014-11-26T00:00:00Z http://archives.univ-biskra.dz/handle/123456789/4343 Titre: AIDE A LA DECISION POUR L’OPTIMISATION DE LA GESTION DES RESEAUX D’ALIMENTATION EN EAU POTABLE Auteur(s): BOUTEBBA K; BOUZIANE M.T; BOUAMRANE A Résumé: In this article ,we propose an Assistance prototype for an interactive decision to manage the rehabilitation of potable water and to reduce the difficulties and complexities of managing intervention’s operations taking into account several criteria that are distributed according to axes in relation with the objectives of sustainable development manager .The model consists of combining a set of tools and approach such as Geographic Information Systems (GIS), multicriteria analysis, as well as modelling tools operation to provide a lot of information that enables decision makers to have a strategic vision on the shares of maintenance and to advanced expertise. Wed, 26 Nov 2014 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/4343 2014-11-26T00:00:00Z http://archives.univ-biskra.dz/handle/123456789/4206 Titre: THE COLLECTING OF GROUNDWATER BY THE QANATS: A MILLENNIUM TECHNIQUE DECAYING Auteur(s): REMINI B; KECHAD R; ACHOUR B Résumé: On the Iranian origin, technical qanats are an ancestral hydraulic system is to capture and drain the water from groundwater to the gardens. 3000 years old, this technique has allowed man to move from a system of water collection based on animal or human effort a low performance a system of underground galleries that drains the groundwater to the surface of soil without effort and with high efficiency. The present study shows that the technique of qanats under different appellations (foggaras, Qanat Khettara, Falaj ...) was performed in 52 arid and semi-arid. Unfortunately, this technique was originally development of several oases, is currently in a degraded state. There are approximately 33000 galleries service a total of 85000 in twelve countries, operational estimated percentage to 38%. The reasons for this decline are environmental and socio-economic type. Sun, 23 Nov 2014 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/4206 2014-11-23T00:00:00Z http://archives.univ-biskra.dz/handle/123456789/4205 Titre: EVALUATION DE LA QUALITE PHYSICOCHIMIQUE ET BACTERIOLOGIQUE DES EAUX USEES BRUTES ET EPUREES DE LA VILLE D’OUARGLA. POSSIBILITE DE LEUR VALORISATION EN IRRIGATION Auteur(s): OUNOKI S; ACHOUR S Résumé: Ouargla area had a serious problem of excess water caused in part by a topographically flat receiving environment and hydrogeologically endoreic. In other hand, discharge of wastewater and agricultural drainage water increased the groundwater level. The development of the network of agricultural drainage and implementation of wastewater treatment plants (Treatment plant of Said Otba, Sidi Khouiled and N’gouss) contributed to stitch down the level of the of aquifers valley. Ouargla city has an aerated lagoon treatment plant since 2009 which serves to reduce the pollution of wastewater for possible reuse in irrigation. The objective of this study is to monitor the physicochemical and bacteriological quality of raw and treated wastewater of Said Otba treatment plant to detect anomalies that may exist at the treatment plant and to able to reuse its treated wastewater for irrigation. The physico-chemical and bacteriological results obtained revealed that the raw wastewater has a high enough organic nitrogen and bacteriological pollution. The solids and nitrogen compounds removal appear ineffective due to massive algal blooms in the various stages of biological treatment in particular the finishing basin. The results of microbiological analysis confirmed the presence of various germs such as total bacteria, total and faecal coliforms, faecal streptococci and sulphite-reducing clostridia in number greatly appreciated. Sun, 23 Nov 2014 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/4205 2014-11-23T00:00:00Z