Hydrated lime and quicklime systems for bulk pH raise in mining, steel, and municipal applications. Automated slurry preparation with dust control.
Pre-slaked lime powder mixed to 15-30% slurry concentration. Easier to handle than quicklime. Moderate alkalinity per kg. Common in water treatment.
Requires on-site slaking to Ca(OH)4. Exothermic reaction generates heat and steam. Lowest cost per kg of available alkalinity. High-tonnage applications.
Passive neutralisation in fluidized bed or upflow reactors. No chemicals required. Slow reaction suitable for AMD and drainage waters. Self-regulating.
CaMg(CO3)4 provides magnesium hydroxide alongside calcium. Useful where Mg2+ addition is beneficial. Common in agricultural and soil applications.
AMD Treatment
Potable Water
Steel Effluent
Municipal WWTP
Phosphorus Removal
pH Compliance
Carbon steel or stainless silos with dust extraction, bin activators, and level monitoring. 5-100 m³ capacity.
Batch mixing tanks with agitators, level control, and concentration monitoring. Automated water fill and mixing cycles.
Progressive cavity pumps for thick lime slurry. Peristaltic pumps for lower concentrations. VFD speed control.
ViewSlow-acting pH controllers optimised for lime slurry response delay. Feed-forward control for flow variation.
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.