Page - 108 - in Intelligent Environments 2019 - Workshop Proceedings of the 15th International Conference on Intelligent Environments

Table 1. Annual Consumption of Drinking Water Industry Industrial processes Annual consumption of drinking water (m3/year) Percentage of average consumption of drinking water Textile industry Washing and dyeing of cotton 732 613 80% Vegetable fat 01 Fat 9 468 1% Vegetable fat 02 Fat 22 238 2% Poultry slaughterhouse Poultry slaughtering 46 227 5% Slaughterhouse Slaughter of cattle, sheep and goats 16060 2% Total 917 582 100% The analysis of the drinking water consumption of industrial units, excluding any well water, shows the following: Only the industrial textile unit has 80% of the total industrial consumption of Settat. The 5 most polluting units consume 95% of the water distributed in the Settat industrial zone. 3. Material and methods 3.1. Sampling In order to obtain representative samples, the sampling was carried out by means of an automatic sampler programmed to collect 500ml of sample every hour for 24 hours. The analyzes are performed twice for all the samples and the results mentioned represent the average obtained. At the end of the sampling, the different flasks are mixed on site, homogenized and 2 liters of samples are taken in a clean polyethylene flask previously cleaned with sulfuric acid, tap water and distilled water. Waste water collection was carried out at the external and internal eyes of the wastewater which collect the discharges coming from the various workshops of the company in addition to the water of domestic quality, coming from the offices. 3.2. Collection of the water to be analyzed During our study, sampling is done at six different points in the Settat industrial zone. (See, table 2 and picture 1). 3.3. Conservation The preservation of the samples was carried out in a portable cooler to preserve the temperature (see, picture 2). Once arrived at the laboratory, the analyzes were carried out immediately. 3.4. Physicochemical methods of analysis All samples of wastewater intended for physicochemical analysis were made in laboratory physicochemical analyzes of water. K.Laaroussi etal. /PhysicochemicalCharacterizationTowardsSmartWaterManagement108