Pre-RO Filtration
Pre-RO self-cleaning screen filtration that reduces particulate loading before reverse osmosis membrane systems.
When dealing with Pre-RO Filtration, there are many water quality issues that must be addressed through filtration.
- RO systems are sensitive to suspended solids and particulate fouling.
- Membrane pre-treatment can be overloaded by silt, organics, scale, and debris.
- Consumable cartridge filtration upstream of RO can create recurring labor and replacement costs.
Conditions, Contaminants, and Considerations
Water sources may vary, but the primary water sources for Pre-RO Filtration filtration are:
- Surface water
- Well water
- Seawater
- Reclaimed water
- Municipal intake water
In this application, water is usually filtered within the 50-200 micron range to remove contaminants like:
- Silt
- Fine particulates
- Organic matter
- Scale
- Debris
Due to these constraints, certain design considerations must be made to accommodate variables that can interfere with the filtration process. Factors such as RO pre-treatment design, SDI goals, Source water variability, Micron rating, Flow rate, and Flush water handling must be accounted for to ensure reliable and efficient water filtration.
Benefits
Filtering the water before industrial or commercial use:
- Protects downstream RO pre-treatment and membrane systems.
- Reduces particulate loading before finer filtration stages.
- Automatically cleans the screen to reduce manual maintenance.
Relevant FAQs
Does the filter waste a lot of water while cleaning itself?
No, because of how quickly the filter cleans itself. Typical backwash water volume is as little as 10 gallons.
