RO Plant Pre-treatment
Media, carbon and consumables that protect reverse osmosis membranes.
The problem
RO membranes are the most expensive consumable in a treatment plant, and most premature failures trace back to poor pre-treatment: suspended solids, chlorine, iron or organics reaching the membranes.
What the treatment needs
A properly maintained pre-treatment train — multi-grade filter, activated carbon filter, iron removal where needed — with media refreshed on schedule.
Typical industries
Practical considerations
• SDI at the RO inlet is the best indicator of pre-treatment health — rising SDI usually means media needs attention.
• Replace carbon before chlorine breakthrough, not after membrane damage shows up.
Bluestone's supply capability
Bluestone supplies the complete set of pre-treatment media for RO plants — one supplier, one delivery, media matched to your filter designs.
Relevant products
Filter Sand
Graded silica filter sand for rapid gravity and pressure sand filters.
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Anthracite
Anthracite filter media for dual-media and multi-grade filters.
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Filter Gravel
Graded support gravel for filter underdrain and support layers.
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Activated Carbon
Granular activated carbon for dechlorination, odour and organics removal.
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Green Sand
Manganese greensand media for iron and manganese removal.
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Activated Alumina
Activated alumina balls for fluoride removal and drying duties.
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