Produced water neutralisation, refinery effluent pH control, desalter brine treatment, and cooling water pH management for upstream and downstream operations.
Produced water neutralisation, refinery effluent pH control, amine scrubber blowdown, and drilling fluid pH management for upstream and downstream facilities.
Produced water from oil and gas extraction can be acidic (CO2, H2S) or alkaline (formation water). pH correction to 6–9 is required before reinjection, discharge, or reuse in frac fluids.
Refinery sour water, desalter brine, and process effluent vary widely in pH. Two-stage neutralisation with oil/water separation handles high TDS, hydrocarbons, and variable flow.
Amine units remove acid gases (H2S, CO2) from natural gas and refinery streams. Rich amine regeneration produces heat-stable salt blowdown requiring pH neutralisation before disposal.
Water-based drilling muds require pH 8.5–11.5 for viscosity stability and corrosion inhibition. Caustic soda or lime maintains alkalinity; pH drops indicate contamination or bacterial activity.
| Application | Target pH | Reagent | Notes |
|---|---|---|---|
| Produced Water (Discharge) | 6.0 – 9.0 | Caustic Soda / Lime | High TDS, hydrocarbons |
| Produced Water (Reinjection) | 6.0 – 8.5 | Caustic / Acid | Compatibility with formation |
| Refinery Sour Water | 6.0 – 9.0 | Caustic Soda / Acid | After stripping |
| Amine Blowdown | 6.0 – 9.0 | Caustic Soda / Acid | Heat-stable salts |
| Desalter Brine | 6.0 – 9.0 | Caustic / Acid | High salinity, emulsions |
| Drilling Mud | 8.5 – 11.5 | Caustic Soda / Lime | Viscosity, corrosion control |
Hydrochloric and sulphuric acid dosing for refinery and amine scrubber blowdown neutralisation.
Discover MoreCaustic soda and lime dosing for produced water, sour water, and drilling fluid alkalinity control.
Discover MoreATEX/IECEx-rated pH control panels for Zone 1/2 refineries, offshore platforms, and gas plants.
Discover MoreSkid-mounted and containerised pH neutralisation for remote well sites and temporary frac operations.
Discover MorepH 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.
Food-grade acid and alkali selection prevents taint and ensures compliance with food safety standards. Automated CIP integration available.
Validated dosing systems with full IQ/OQ documentation. Hygienic design prevents biofilm formation in pure water loops.
High-purity dosing for boiler feed water and cooling tower blowdown neutralisation. Redundant pump arrangements ensure availability.
Heavy-duty construction withstands aggressive mine water chemistry. Remote telemetry enables operation at unmanned sites.
Comprehensive cross-references for pH treatment in petroleum and adjacent industries.
All pH adjustment technologies, reagents and reactor designs across industries.
Read MoreAdjacent industry pH control with similar materials (PVDF, Hastelloy) and ATEX practice.
Read MoreCIP-driven pH swings with similar dosing infrastructure, parallel control strategies.
Read MoreAcid mine drainage neutralisation with lime — comparable in scale and chemistry to refinery sour-water acid treatment.
Read MoreH₂SO₄, HCl dosing system design for refinery and downstream pH correction.
Read MoreNaOH, KOH, lime dosing for acidic refinery effluents and sour-water amelioration.
Read MoreCarbonic-acid pH trim for fine adjustment downstream of stripper effluent.
Read MoreBulk lime slurry handling for high-acid streams and precipitate-driven metal removal.
Read MoreFeedback, feed-forward and cascade control architectures for pH dosing loops.
Read MorePump types, wetted materials and accuracy for acid / caustic / lime duty.
Read MoreFerric and PACl chemistry for emulsion breaking and metals precipitation in oil & gas streams.
Read MoreAll refinery streams: desalter, sour water, FCC effluent, runoff, utilities and reuse.
Read MoreHigh-salt, high-oil wash water with characteristic pH swings driven by demulsifier and crude chemistry.
Read MoreH₂S and NH₃-laden streams — pH control critical for sour-water-stripper performance.
Read MoreOffshore / upstream produced water with high TDS and pH requirements for downstream injection or discharge.
Read MoreATEX / IECEx Zone 1/2 dosing systems for explosive-atmosphere applications.
Read MoreContact Our Engineers for system design, sizing, and quotation.
Our expertise spans multiple industries with sector-specific water treatment solutions.