Seite - 107 - in Intelligent Environments 2019 - Workshop Proceedings of the 15th International Conference on Intelligent Environments

have a negative impact on the purification performance of the existing wastewater treatment plant, which is based on biological processes, health risks due to contamination of water resources from inlets in receiving environments. Therefore, the activity of the five industrial units that are the subject of our study leads to an increasingly significant degradation of the quality of ecosystems. This degradation is caused by a massive and anarchic pollution, both via natural organic matter and by synthetic industrial products. This pollution affects different compartments of the ecosystem (water, sediments, etc.). In order to protect the wastewater treatment plant, commissioned since 2006, against the harmful substances generated by the industrial zone of the city of Settat, the industrial waste was diverted to Oued Boumoussa while waiting for the realization of the project of industrial pollution control by setting as aims the assistance of polluting industrial units in terms of the installation of adequate pretreatment systems and the follow-up of their conformity with admissible thresholds fixed by the technical regulation of the Régie Autonome De Distribution D'Eau Et D'Electricité De La Chaouia (RADEEC) [5]. So this study is based on the analysis of physicochemical parameters such as pH, temperature, biological oxygen demand (BOD), chemical oxygen demand (COD) and suspended solids (MES). 2. Case study The city of Settat, located on the Casablanca-Marrakech road axis, 72 km south of Casablanca, is the urban core of the province. The latter covers an area of 9888.4 square kilometers. It is characterized by its agricultural vocation and a very important industrial development. Concerning the geographical situation of the industrial zone of Settat, it is located in the northern side of the city and is constituted of two parts [6] and [7] whose characteristics are as follows: Industrial zone of Settat 1 st and 2 nd parts (rehabilitated zone) developed by Caisse de Dépôt et de Gestion (CDG) and Municipality of Settat with a total of 137 awarded lots and a recovery rate: 60%. 1 st part: Denomination: Settat Industrial Zone 1 st part, Landscaper: CDG, Starting date: 1984, Characteristics of the Zone, Net area: 10ha 63a 84ca, Transfer price: 90 dirhams / m², Number of lots: 83, Number of lots awarded: 83., Number of vacant lots: None. 2 nd Part: Denomination: Settat Industrial Zone 2 nd part, Landscaper: Settat Municipal Council, Legal situation of the land: State private and private domain, Creation date: 1990, Characteristics of the zone, Gross area: 20ha 02a 11ca, Net area: 15ha 23a 53ca, Sale price: 160 dirhams / m², Total number of lots: 54, Number of prizes awarded: 54, Number of lots available: None. The province of Settat contains 205 industrial units (65% of the companies in the region). The Agri-Food Industries sector leads with 61 companies (30% of the companies in this province), followed by the Chemical and Para-Chemical Industries sector which ranks second with 59 companies (29%); the third position belongs to the Metal and Mechanical Industries sector with 47 companies (23%); Textile and Leather Industries and Electrical and Electronic Industries occupy the fourth and fifth position respectively with 25 and 13 companies accounting for 12% and 6% [8]. The industrial zone of the city of Settat comprises about 25 operational industrial units whose essential activities are textile, tanning, slaughtering, margarine, ceramics, treatment of gut and glassware. The main industrial units of the city of Settat with their share of water consumption are shown in table 1. K.Laaroussi etal. /PhysicochemicalCharacterizationTowardsSmartWaterManagement 107