Seite - 111 - in Intelligent Environments 2019 - Workshop Proceedings of the 15th International Conference on Intelligent Environments

whenever possible. We double check the concentration of the iron and ammonium solution with 5 ml of potassium dichromate. We make up 100 ml with a 4M sulfuric acid solution. We dose and after the end of the COD cycle meter "150 ° C for 120 min", we pour the contents of the tubes into a 250ml Erlenmeyer and then, the tube is rinsed 3 times with distilled water and the water is returned to the Erlenmeyer flask. We make up 100ml with distilled water if necessary, 3 drops of Phenanthroline solution, and finally, the solution of iron and ammonium sulphate solution (0.12 N) is used for dosing. 4. Results and discussion The results of this study are presented by discussing the measured parameters, including the measurements made in the RADEEC laboratory. 4.1. Water Consumption and Average Flow of Liquid Releases by Society Table 4. Water Consumption and Average Flow of Liquid Releases by Society Sampling point The average flow (m3/j) water consuming in 2013 (m3/j) Poultry slaughterhouse 83,78 126,65 slaughterhouse 89,244 99 Vegetable fat 01 86,28 25,94 Vegetable fat 02 110,66 60,93 Textile industry 3 296,86 2 007,16 Figure 1. Graphical representation of daily water consumption and average flow It is found that the textile unit discharges a very high volume of wastewater compared to other companies and that most companies use a source of water other than that of the city (groundwater). Table 4 and figure 1 show the average wastewater results for each unit of production. 83.78 89.244 86.28 110.66 3,296.86 126.65 99 25.94 60.93 2,007.16 Poultry slaughterhouse slaughterhouse The company produces vegetable fat 01 The company produces vegetable fat 02 Textile industry Daily water consumption and The average flow The average flow (m3/j) water consuming in 2013 (m3/j) K.Laaroussi etal. /PhysicochemicalCharacterizationTowardsSmartWaterManagement 111