Hydroelectric, Power & Water Systems
Water Treatment and Demineralization Automation
Water-treatment and demineralization plants combine equipment and process steps that vary by treatment design. PLC/HMI automation can coordinate raw-water transfer, filtration and backwash, chemical dosing where fitted, tank levels, flow and pressure instruments, conductivity monitoring and valve or pump interlocks according to the approved operating procedure. Automation scope depends on the equipment, operating sequence, existing controls and process requirements. Share the machine details and desired outcome to define a suitable control approach.
Application overview
Water-treatment and demineralization plants combine equipment and process steps that vary by treatment design. PLC/HMI automation can coordinate raw-water transfer, filtration and backwash, chemical dosing where fitted, tank levels, flow and pressure instruments, conductivity monitoring and valve or pump interlocks according to the approved operating procedure.
Typical requirements to define
- Process flow diagram, treatment stages, resin/filter equipment and approved operating procedure
- Raw and treated water tanks, pump/valve list, inter-stage permissives and available run/fault signals
- Level, flow, pressure and conductivity measurement ranges, locations and instrument diagnostics
- Backwash initiation, duration, valve lineup, rinse and return-to-service criteria
- Chemical dosing equipment and permissives where applicable, plus alarm and operator acknowledgement rules
Example process sequence
- Check selected mode, tank levels, valve positions and equipment availability.
- Run the configured transfer or filtration stage while monitoring pump, flow and pressure feedback.
- Initiate backwash or regeneration only under the approved trigger and required equipment permissives.
- Sequence valves, pumps and rinse stages in the specified order and verify completion feedback where available.
- Monitor conductivity and other specified values, alarm abnormal conditions and require the defined checks before return to service.