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Control of PH level by PLC in a waste water treatment plant | |
Author | Ngo Viet Thang |
Call Number | AIT Thesis no.ISE-07-30 |
Subject(s) | Sewage disposal plants--Efficiency |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Mechatronics, School of Engineering and Technology |
Publisher | Asian Institute of Technology |
Series Statement | Thesis ; no. ISE-07-30 |
Abstract | Recently, requirements to improve technologies of waste water treatment are become higher than ever. To contribute a solution to this problem, a sub step to improve quality of waste water treatment by controlling pH level is described this study. The control system is implemented on a PLC. A model contained hardware and software is designed to implement the research. The main point of the hardware is the use of low cost devices like webcam or solenoid valve. The software is control program to connect some points like webcam, PC, PLC, solenoid valves to each other. One of the key points of this study is to use a webcam to simulate pH measurement. Another point is to control effectively pH level PID controller integrated in the PLC SIMA TIC S7-300 of Siemens. A HMI is made to enable operators visually to control. Moreover, a DCS integrated with an operator panel to show a network control. In conclusion, this study recommends a methodology to control pH level in a waste water treatment plant by applying PLC. By applying automation technology, the quality of treated water is significantly improved |
Year | 2007 |
Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ISE-07-30 |
Type | Thesis |
School | School of Engineering and Technology (SET) |
Department | Department of Industrial Systems Engineering (DISE) |
Academic Program/FoS | Industrial Systems Engineering (ISE) |
Chairperson(s) | Manukid Parnichkun; |
Examination Committee(s) | Afzulpurkar, Nitin V.;Bohez, Erik L. J.; |
Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |