ABSTRACT

Safe potable water for human use has become an emerging concern in this era. A Programmable Logic Controller (PLC) based automatic water treatment plant has been designed to remove unexpected materials from water and to confirm drinking quality of water. The conventional methods used in older times result into problems like empty running, dose and coagulation control, overflow, leakage etc. The operations of the plant such as water intake from raw water tank, water intake for chlorination, mixing of chlorine water with raw water, and water feed into various treatment chambers are done automatically. For automation PLC and microcontroller are used to control the above-mentioned functions. The iron content is reduced to negligible amount and contaminations are removed to ensure safe, odorless, clean water.