Author proposed an optical sensor as a solution of liquid level detection system at Riyadh waste water treatment station. The proposed solution has been applied compared with ultrasonic sensor which is used at the station to find out the ideal sensors for this application. Experimental studies to improve measurement accuracy and sensitivity have been investigated and analysed.
I would like to thank my supervisor Professor Gui Tian strongly for being supportive and an excellent guidance throughout the duration of this work. My thanks must also go to Professor Matthew Armstrong for his advice regarding the control part of this project on. I would like to thank yassir Ali Bouraee for helping me in the fluid system control.
Detection of liquid level is pivotal for Riyadh domestic wastewater treatment stations in Saudi Arabia where researchers were working three years ago. For instance, in the gate of the main station of domestic wastewater station we need to detect the flow in level at the main gate to monitor it and to divide it between the sub plants. There are three sub plants, two primary sub plants and one standby (in the rush-hour). The highest capacity for each plant is 200,000 cubic meter a day, therefore we should divide the flow in between the plants correctly.
The domestic wastewater station is one of the harsh environments areas, because it carries many gases such as Methane, Ethel, etc. ...