RO Membrane Cleaning Chemicals
كيماويات تنظيف أغشية RO
Product Description
When membrane fouling appears as higher pressure, lower flow or weaker rejection, DSTC supplies the correct RO/NF cleaning chemicals before replacement becomes the only option. DSTC supplies PWT membrane cleaning chemicals for RO and NF plants, including low-pH cleaners for scale and metal oxides, high-pH cleaners for organics and biological fouling, and preservation chemicals for membrane storage.
For quotation, send membrane model, number of elements, plant capacity, feed analysis, current symptoms, normalized data if available, last CIP date, and fouling suspicion.
Overview
RO and NF membranes lose performance when scale, metal oxides, colloids, organics, or biofilm accumulate on the membrane surface. The common symptoms are reduced normalized permeate flow, increased differential pressure, or increased salt passage. CIP cleaning can recover performance when the cleaning chemical matches the foulant. DSTC supplies membrane cleaners and supports troubleshooting by reviewing water analysis, pressure data, permeate flow, conductivity trends, and previous cleaning results.
Applications
- •Acid cleaning for mineral scale and metal oxides
- •Alkaline cleaning for organics, colloids, and biofilm
- •Iron, manganese, and metal fouling removal
- •Membrane preservation during shutdown or storage
- •Recovery of normalized flux and salt rejection where fouling is reversible
- •Routine CIP programs for brackish water and seawater RO systems
Product Range & Specs
- ✓PWT acidic cleaners for scale and metals
- ✓PWT alkaline cleaners for organics and biological fouling
- ✓Membrane biocides and preservation chemicals
- ✓Suitable for polyamide RO and NF membranes when used as directed
- ✓Guidance for dose, pH, temperature, circulation time, and soaking time
- ✓Can be paired with DSTC CIP skids and service support
- ✓PWT cleaners stocked: Lavasol 5, Lavasol 6, Lavasol 9, and OPTI Cleaner
- ✓Genesys Genesol 704 membrane cleaner also available
Product Summary
RO membrane cleaning chemicals are acidic, alkaline or specialty cleaners used during CIP to remove scale, metal oxides, organics and biological fouling from RO/NF membranes. The cleaner is selected from the fouling symptoms and operating history.
Available Brands
Frequently Asked Questions
How do I know if RO membranes need cleaning?+
Common signs include lower normalized permeate flow, higher differential pressure, or increased salt passage compared with the clean baseline.
Which cleaner is used for scale?+
Mineral scale and metal oxides usually require an acidic, low-pH membrane cleaner.
Which cleaner is used for biofilm or organics?+
Organics, colloids, and biofilm usually require an alkaline, high-pH cleaner, sometimes with a biocide or additional cleaning step depending on the case.
Should I clean with acid or alkaline first?+
It depends on the foulant. When both organics and scale are present, alkaline cleaning is often done first to remove the organic layer, followed by acid cleaning for scale.
Can cleaning restore old membranes?+
Cleaning can restore performance when the loss is caused by removable fouling. It cannot repair oxidized, physically damaged, or permanently compacted membranes.