5. Conclusions

The automatic control system has been proposed and implemented in this chapter regarding water treatment system. The water treatment system was dealt within two ways: the traditional system and the modified system after using WSN components. A controlled pump system has been fully developed on a PLCs system with sensors. An algorithm was designed to calculate the required doses from purification and disinfection chemical materials according to flow rate, pH, turbidity, and resident chlorine sensors reading, then added to water in a realtime application mode. The backwashing process for filters accomplished automatically using level sensors installed inside the filter basin, and automated valves. Therefore, the filter valves are working properly according to PLCs wireless control signals. In conclusion, the proposed control system has been successfully tested and the obtained results were significant. It was clear that the traditional system without WSN devices was poor and sometimes may have high risks especially in such system of drinkable water treatment. In contrast, the modified and improved system using WSN components has shown a high degree of dependability.
