RO antiscalant
Tailored to feedwater, recovery and relevant saturation indices.
Discuss suitabilityReverse Osmosis
Protect membranes and keep performance predictable.
Antiscalants, cleaning chemicals and technical support for stable RO systems.
System approach
Treatment tailored to your installation
Membrane fouling is rarely a single issue. Scaling risk, organic load, microbiology, pretreatment and operating practice all influence one another.
Signals to investigate
- Increasing feed pressure or pressure drop
- Declining normalised permeate flow
- Declining salt rejection
- Progressively less time between cleanings
Available approaches
Integrated product, equipment and support
Alkaline cleaning
For selected organic fouling and biofilm residues.
Discuss suitabilityAcid cleaning
For selected mineral deposits and metal-related fouling.
Discuss suitabilityFrom product to programme
Make selection, dosing and performance verifiable
A treatment programme is complete only when it is clear in advance what is assessed, how it is applied and which measurements will be used to verify performance.
What we assess technically
- Feedwater chemistry at the actual recovery and concentrate conditions
- Normalised performance and trends rather than raw snapshots alone
- Likely fouling mechanism and any shortcomings in pretreatment
- Compatibility of antiscalant, cleaning chemicals and membrane type
What we monitor during operation
- Normalised permeate flow, feed pressure and pressure drop per stage
- Salt passage, salt rejection and permeate conductivity
- Pressure drop across prefilters and relevant SDI or turbidity trends
- Recovery after CIP and the rate at which performance declines again
Frequently asked questions
Technical choices require system context
These answers provide initial direction. The final approach follows from the installation data and product documentation.
When does an RO system need cleaning?
Not on a calendar basis alone. Use normalised flow, pressure drop and salt passage, and follow the membrane supplier's cleaning criteria. Delaying too long can limit recovery.
Can an antiscalant be selected on hardness alone?
No. Recovery, pH, alkalinity, silica, metals, temperature and concentrate concentrations also determine the risk.
Is one membrane cleaner sufficient for every type of fouling?
No. Mineral, organic and microbiological fouling often require different chemistry, sequence, pH, temperature and contact time.
A specific challenge?
Discuss your water system with a specialist.
Briefly describe what you observe in the installation. Together, we will determine the most logical first step.