Why PARSWOOD™ High Flow Antibacterial Cartridges Are Transforming RO & Industrial Water Treatment
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Reverse osmosis (RO) systems are the backbone of modern water treatment—whether in drinking water production, food & beverage processing, industrial utilities, or seawater desalination. But one challenge remains universal across all these systems: pre-filters tend to clog much sooner than expected, driving up operating cost and reducing system efficiency.
The diagram below illustrates a typical pre-treatment flow for RO and UF systems. At every stage, filters serve a critical role in protecting the membranes downstream.
The Hidden Problem: Bacteria Growth on RO Pre-Filters
Traditional pre-filter cartridges—especially those made only of polypropylene—are extremely vulnerable to microbial growth. As water flows through them, bacteria and microorganisms can settle and multiply on the filter surface, creating:
- Slimy biofilm
- Clogging and blinding of filter media
- Higher differential pressure (ΔP)
- Reduced flow rate
- Shorter filter life
- More frequent filter change-outs
To operators, this looks like the filter has simply reached the end of its life.
In reality, it’s often premature bacterial fouling, not mechanical loading.
This misunderstanding leads to high operating costs, unexpected downtime, and inconsistent RO performance.
How PARSWOOD™ High Flow Cartridges Solve This Problem
To address this industry-wide challenge, PARSWOOD™ High Flow Series Cartridges are engineered with sterilizing antibacterial layers placed on both the upstream and downstream sides of the filter media.
This unique dual-layer antibacterial design:
✔ Prevents bacteria from multiplying inside the filter
✔ Suppresses biofilm formation
✔ Maintains stable flow rates over a longer period
✔ Reduces differential pressure spikes
✔ Extends service life significantly
✔ Lowers operating and maintenance cost
Instead of clogging prematurely, the filter operates closer to its true mechanical loading capacity, allowing users to fully utilize the cartridge’s intended lifespan.
Why High Flow Filter Technology Makes a Big Difference
Beyond antibacterial protection, PARSWOOD™ High Flow cartridges deliver major process benefits:
1. Higher Flow Rates
High surface area pleating and a large-diameter design allow each cartridge to handle exceptionally high flow—ideal for RO pretreatment, municipal water, and industrial filtration.
2. Lower Pressure Drop
- Less resistance means:
- Lower pump energy consumption
- Smoother RO membrane operation
- Reduced wear on upstream equipment
3. Fewer Cartridges Required
Compared to traditional 2.5" or 2.7" cartridge filters, one high-flow cartridge can replace multiple standard filter cartridges, reducing:
- Installation footprint
- Filter housing size
- Labor during change-outs
4. Improved Filtration Consistency
Ideal for:
- Pre-RO (Reverse Osmosis)
- Pre-UF (Ultrafiltration)
- Desalination
- Food & beverage water systems
- Power plant water treatment
- Chemical and petrochemical process water
- Oil & gas applications like amine sweetening or produced water polishing
5. Lower Total Cost of Ownership
Longer life + fewer changeouts = a much more cost-efficient filtration program.
Where PARSWOOD™ High Flow Cartridges Make the Biggest Impact
✓ Municipal & Drinking Water
Stable, long-life filtration helps utilities reduce chemical consumption and improve RO uptime.
✓ Industrial Process Water
Power plants, pharmaceutical facilities, electronics factories, and food processors all benefit from higher efficiency and reduced maintenance.
✓ Oil & Gas & Petrochem
- High-flow, antibacterial filtration is ideal for:
- Amine sweetening units
- Produced water treatment
- Injection water
- Cooling & boiler makeup water
✓ Seawater Desalination
Biofouling is a constant challenge—making PARSWOOD™ antibacterial technology incredibly valuable.
Conclusion: A Smarter, Longer-Lasting RO Pre-Filtration Solution
Biofouling in RO pre-filters is a silent cost driver that often goes unnoticed.
By integrating antibacterial layers on both sides of the filter media, PARSWOOD™ High Flow Cartridges prevent premature clogging, maintain flow performance, and significantly extend filter life.
For facilities seeking:
- lower operating cost,
- fewer change-outs, and
- more reliable water treatment performance,
PARSWOOD™ High Flow Series is a practical and powerful upgrade.