WFI pH adjustment, API synthesis pH control, effluent neutralisation, and fermentation pH management for pharmaceutical manufacturing.
WFI and Purified Water pH, API synthesis pH control, fermentation broth adjustment, and effluent neutralisation for pharmaceutical plants.
Active pharmaceutical ingredient synthesis often involves pH-sensitive crystallisation, extraction, and reaction steps. Precise acid or base addition with temperature control ensures yield and purity.
Microbial and cell culture fermentations require pH 6.8–7.4 for optimal growth. Ammonia or caustic soda raises pH; phosphoric or citric acid lowers it. pH control directly impacts titer and product quality.
Pharmacopeial Water for Injection (WFI) and Purified Water must meet pH 5.0–7.0. CO2 dosing gently lowers pH without introducing ionic contamination; minimal adjustment preserves conductivity compliance.
Pharmaceutical effluent contains APIs, solvents, and cleaning agents at variable pH. neutralisation to 6–9 is the first step before advanced biological treatment or advanced oxidation.
| Application | Target pH | Reagent | Notes |
|---|---|---|---|
| API Crystallisation | 3.0 – 8.0 | HCl / NaOH / Buffer | Process-specific |
| Fermentation Broth | 6.8 – 7.4 | NaOH / NH3 / Acid | Online, sterile |
| Cell Culture Media | 7.0 – 7.4 | NaHCO3 / CO2 / Acid | Gentle control |
| WFI & Purified Water | 5.0 – 7.0 | CO2 / NaOH | USP / EP compliance |
| CIP Effluent | 6.0 – 9.0 | Acid or Caustic | neutralise before drain |
| Final Effluent | 6.0 – 9.0 | Acid or Alkali | Before advanced biological treatment |
Pharmaceutical-grade acid dosing with 316L SS, electropolished tubing, and diaphragm seal transmitters.
Discover MoreCaustic soda dosing for fermentation and effluent neutralisation with CIP-compatible materials.
Discover MoreFood-grade CO2 injection for WFI and purified water pH adjustment without ionic contamination.
Discover MoreSecondary containment, leak detection, and exhaust ventilation for pharmaceutical acid/caustic storage.
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.
Pharma pH systems share materials and control strategy with petrochemical pH dosing.
Read MoreAll pH adjustment technologies, reagents and reactor designs.
Read MoreFeedback, feed-forward and cascade control for pH dosing loops.
Read MoreRight pump for acid / caustic / lime dosing duties.
Read MoreContact Our Engineers for system design, sizing, and quotation.
Illustrative scenarios showing how this equipment is configured for real-world applications.
Our expertise spans multiple industries with sector-specific water treatment solutions.