Seite - 112 - in Intelligent Environments 2019 - Workshop Proceedings of the 15th International Conference on Intelligent Environments

4.2. Temperature Table 5. Measurement of the temperature of the liquid discharges of the 5 industrial units and the final collector Sampling point T°C limit value Poultry slaughterhouse 24,60 30 Vegetable fat 01 24,30 30 Vegetable fat 02 24,00 30 Textile industry 23,88 30 slaughterhouse 24,00 30 final save-all 23,00 30 Figure 2. Graphical representation of the temperature of the liquid discharges of the 5 industrial units and the final collector The monitoring of the industrial units’ discharges temperatures shows values below 30 ° C (release allowed) in the samples. In fact, the temperature is in most cases normal and varies between 23 ° and 24.6 ° C with an average of about 24 ° C. Table 5 and figure 2 show the temperature of liquid discharges. 4.3. pH measurement In general, the analyzed wastewater samples have a relatively neutral pH except for the pH values of the textile unit exceeding the maximum recommended limit. Table 6 and figure 3 show the pH of wastewater. Table 6. pH measurement of the liquid discharges of the 5 industrial units and the final collector Sampling point pH The minimum limit value of pH The maximum limit value of pH Poultry slaughterhouse 6,4 5,5 8,5 Vegetable fat 01 8,05 5,5 8,5 Vegetable fat 02 8,54 5,5 8,5 Textile industry 11,81 5,5 8,5 Slaughterhouse 6,53 5,5 8,5 Final save-all 6,69 5,5 8,5 24.60 24.30 24.00 23.88 24.00 23.00 30 Poultry slaughterhouse The company produces vegetable fat 01 The company produces vegetable fat 02 Textile industry slaughterhouse final save-all Temperature of wastewater T°C limit value K.Laaroussi etal. /PhysicochemicalCharacterizationTowardsSmartWaterManagement112