Membrane Treatment Chemical

RO Plant Chemicals

High-performance antiscalants, membrane cleaners, and biocides to protect reverse osmosis membranes, extending membrane life and maximising water recovery.

Product Overview

Reverse osmosis systems are at the heart of modern water purification, from industrial process water to drinking water and desalination. RO membranes are vulnerable to fouling by scale-forming salts, biological matter, colloidal particles, and organic compounds, all of which reduce permeate flux, increase operating pressure, and shorten membrane lifespan.

Cleanex Chemicals supplies a complete range of RO treatment chemicals: antiscalants to prevent mineral scale formation on membranes, acid and alkaline membrane cleaners to restore fouled membranes, non-oxidizing biocides to control biological growth, and membrane preservatives for system shutdown. Our antiscalants are effective against carbonate, sulfate, fluoride, and silica scales.

Membrane Protection: Regular antiscalant dosing can extend membrane life from 2–3 years to 5–7 years, delivering significant savings on replacement costs and reducing system downtime.

Product Types & Variants

Carbonate / Sulfate Antiscalant Silica Control Antiscalant Acid Membrane Cleaner Alkaline Membrane Cleaner Non-Oxidizing Biocide Membrane Preservative pH Adjustment Chemicals

Key Features & Benefits

Prevents carbonate, sulfate, fluoride, barium, and silica scale on membranes
Significantly extends membrane lifespan and reduces replacement costs
Compatible with all leading polyamide thin-film composite membranes
Low effective dosage (2–10 ppm) reduces operating costs
Reduces cleaning-in-place (CIP) frequency by 60–80%
Maintains high water recovery rates (up to 85%)
Non-phosphate formulations available for environmental compliance
Stable across wide pH range (3.0 – 10.5)

Industrial Applications

Application	Chemical Used	Key Benefit
Seawater Desalination	High-efficiency antiscalant	Sulfate & carbonate scale control at high TDS
Brackish Water RO	Multi-functional antiscalant	Full-spectrum protection, high recovery
Industrial Process Water	Antiscalant + biocide	Combined scale and biological control
Drinking Water Production	NSF-certified antiscalant	Safe treatment for potable water systems
Wastewater Reclamation RO	Acid membrane cleaner	Iron & organic fouling removal from membranes
DM Plant Pre-treatment	Coagulant aid + antiscalant	SDI reduction, colloidal fouling prevention

Technical Specifications

Parameter	Value / Range
Antiscalant dosage range	2 – 10 ppm (feed water dependent)
pH stability range	3.0 – 10.5
Maximum water recovery	Up to 85%
Compatible membranes	All polyamide TFC membranes (DOW, Hydranautics, Toray, etc.)
Membrane cleaner contact time	30 – 60 minutes per cleaning cycle
Storage temperature	5 – 40°C
Appearance	Clear to slightly hazy liquid
Packaging	5 L, 20 L, 50 L, 200 L containers

Protect Your RO Membranes. Talk to Our Experts

Provide your feed water analysis and system parameters for a customised antiscalant recommendation.

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