Sulphuric, hydrochloric, and nitric acid dosing systems for high-pH neutralisation in wastewater and process water. Flow-proportional control with automated feedback.
Concentrated sulphuric acid (93-98%) is the most efficient acid for pH reduction. One mole neutralises two moles of alkalinity. Ideal for wastewater with high pH (>10).
Food-grade HCl (32%) adds chloride but no sulphate. Preferred for potable water, food processing, and applications where sulphate is undesirable.
Used in fertilizer and explosive manufacturing effluent. Nitrate addition may require downstream advanced biological treatment for nitrogen removal.
Food-grade organic acid for gentle pH reduction in beverage, dairy, and pharmaceutical applications. Biodegradable and non-hazardous.
Wastewater pH
Process Water
Potable Water
Effluent Compliance
Boiler Blowdown
Cooling Water
PTFE-coated diaphragm metering pumps for concentrated acid. Leak-free design with no seals to fail.
ViewAutomated pH controllers with acid-specific setpoints, dual-setpoint control, and alarm management.
ViewBunded tanks, acid-resistant pipework (PVDF/PTFE), spill trays, and emergency showers for safe handling.
ViewIn-line static mixers for rapid acid dispersion before downstream pH measurement point.
ViewpH correction is a critical stage in wastewater and process water treatment. Incorrect pH can damage downstream biological systems, corrode pipework, violate discharge consent limits, and compromise product quality. Our dosing systems utilise flow-proportional control with automated feedback loops to maintain target pH within ±0.2 units, regardless of influent variability.
Rapid mixing and reaction kinetics ensure complete neutralisation before downstream processes.
Flow-paced and feedback-controlled dosing eliminates chemical wastage and overshoot.
Systems account for influent buffer capacity to calculate precise reagent requirements.
Automated temperature compensation ensures accurate pH measurement across seasonal variations.
| Flow Range | 0.5 – 5,000 m³/h |
| pH Setpoint Range | 4.0 – 10.5 (adjustable) |
| Control Accuracy | ±0.2 pH units |
| Response Time | <30 seconds to setpoint |
| Reagent Concentration | 10% – 98% (application specific) |
| Materials | SS316L, PVC, PVDF, PTFE, rubber-lined steel |
| Control Philosophy | Flow-paced + cascade PID feedback |
| Communication | Modbus RTU/TCP, Ethernet/IP, OPC-UA |
Quality management systems ensuring consistent design, manufacture, and commissioning.
Explosion-proof dosing skids available for Zone 1 and Zone 2 hazardous area installations.
Systems engineered to meet local discharge consent limits including pH, metals, and COD.
Complete pH neutralisation systems for acid and alkaline wastewaters.
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Our expertise spans multiple industries with sector-specific water treatment solutions.