PLC-Based Automation of Water Treatment Plant. This is a final-year project for electronics/electrical engineering students.

1. PLC Based Automation of
Water Treatment Plant
Supervisor: Dr. Khawaja Shafiq Haider
Group Students: Rehman Ali (18-ENC-10)
Haider Ali (18-ENC-37)
Dated: February 14,2022

2. Table of Contents
• Aims, Objectives and Motivation
• Introduction
• Methodology
• System Block Diagram
• Project Completion Time-line
• Cost analysis and Softwares
• Conclusion and References

3. Aims, Objectives and Motivation
Aim
• To automate Water Treatment Plant
Objectives
• To make water potable (safe for drinking)
• To reduce the impurities to a certain level that doesn’t harm human health
• Cost friendly and accessible to all
Motivation
• To solve the issue of shortage of safe drinking water
• To make dynamic water treatment plant with high efficiency

4. Introduction
• The process of removal of undesirable matters and pathogens from
water is called water treatment process.
• Water from any source my contain impurities that can cause harm to
human health.
• Like many other countries shortage of safe drinking water is also a
major concern for Pakistan.
• Convention water treatment methods are still being used that use
High Human effort.
• Automated water treatment plants are made that are cost friendly
and require less human intervention.
• Different Physical ,Chemical and Biological process are involved in
the treatment process.

5. Project Methodology
The whole water treatment process is automated using PLC
(Programmable logic Controller) that uses inputs/outputs of Sensors,
motors, pumps and solenoid valves. The water treatment process
include processes like:
• Screening
• Coagulation
• Flocculation
• Sedimentation
• Filtration
• Disinfection

6. System Block Diagram

7. Flow Diagram

8. Ladder logic for PLC

9. Continued…

10. Continued…

11. CX-Designer Diagram

12. Project Completion Time Line
Project Completion Time-Line
Project Coding Till 30-12-2021
Equipment purchasing and Hardware Assembly Till 01-02-2022
Code Installment, Testing and Troubleshooting Till 01-03-2022
Project Report Finalize Till 15-03-2022
Finalize Project Till 07-04-2022

13. Cost Analysis And Softwares
Cost Analysis
Softwares
• CX-Programmer
• CX-Designer
Component Name Approximation Price
PLC (Omron) 45k approx.
Sensors (pH, Turbidity, Float Sensors) 20k approx.
Valves, Motors, Pump, Stirrer 6k approx.
Chlorination, Granular Media Filter and alum 8k approx.
Pipes and Containers 7k approx.
Total Cost 80-90k approx.

14. Conclusion and References
Conclusion
• PLCs are continuously growing and evolving to be the best option for
a variety of industrial automation applications.
• The automation of the whole process of water treatment using PLC
ensures safe drinking water in reduced time. The whole process is
controlled and monitored by PLC.
• It can be easily implanted in small place.
References
• ShashiKantChaudhary; AwadheshKumar “Approximation to an unstable,
MIMO wast e water treatment plant” 2017 1st International Conference on
Electronics, Materials Engineering and Nano-Technology (IEMENTech)
Pages: 1 – 4 Year: 2017.