Seite - 113 - in Intelligent Environments 2019 - Workshop Proceedings of the 15th International Conference on Intelligent Environments

Figure 3. Graphical representation of the pH of the liquid discharges of the 5 industrial units and the final collector 4.4. Measurement of suspended matter and turbidity Suspended solids, which represent all of the non-settling materials, whether organic or mineral, have an average value of 812.83 mg / l, which greatly exceeds the norm of 500 mg / l imposed by the authorities and this exceedance found in the liquid discharges of the two slaughterhouses. Table 7, 8, figure 4 and 5 show matter in suspension of wastewater. Table 7. Measurement of the suspended matter of the liquid discharges of the 5 industrial units and the final collector Sampling sites Matter in suspension (mg / l) Limit Value Poultry slaughterhouse 1300 500 Vegetable fat 01 2 500 Vegetable fat 02 465 500 Textile industry 190 500 slaughterhouse 2065 500 final save-all 855 500 Figure 4. Graphical representation of the quantity of the suspended matter of the liquid discharges of the 5 industrial units and the final collector 6.4 8.05 8.54 11.81 6.53 6.69 5.5 8.5 Poultry slaughterhouse The company produces vegetable fat 01 The company produces vegetable fat 02 Textile industry slaughterhouse final save-all pH of wastewater pH The minimum limit value of pH The maximum limit value of pH 1300 2 465 190 2065 855 500 Poultry slaughterhouse The company produces vegetable fat 01 The company produces vegetable fat 02 Textile industry slaughterhouse final save-all Matter in suspension in the wastewater Matter in suspension Limit value K.Laaroussi etal. /PhysicochemicalCharacterizationTowardsSmartWaterManagement 113