HMI and SCADA Systems for Water Treatment Plants

Water Treatment Automation Overview

Modern water and wastewater treatment plants are highly automated — pumps, valves, aerators, chemical dosing systems, and filtration processes are all controlled and monitored by PLC and SCADA systems. Operators supervise the entire plant from a central control room SCADA workstation, while remote pumping stations have local HMI panels for on-site monitoring and control.

Key Automation Applications

• Pump control and sequencing — variable speed pump control with flow and pressure feedback
• Chemical dosing — chlorine, coagulant, and pH correction dosing with residual monitoring
• Level monitoring — reservoir, wet well, and sump level control
• Water quality monitoring — turbidity, pH, dissolved oxygen, and chlorine residual
• Alarm management — remote alarm notification to operators via SMS or email
• Regulatory reporting — automated CPCB/SPCB compliance data logging and reporting

Hardware Requirements for Water Treatment

• Outdoor and remote sites — wide-temperature HMIs (−10°C–60°C) in weatherproof enclosures
• Chemical resistance — IP65 minimum; IP67 for chlorine room and chemical storage areas
• Communication — 4G LTE or fibre connectivity for remote SCADA telemetry
• UPS/battery backup — for uninterrupted operation during power failures
• Long MTBF — 50,000+ hour components; remote sites cannot be visited frequently

TSL Automation supplies Cermate HMIs and Avalue Panel PCs for water and wastewater treatment automation projects across India — contact us for technical recommendations.