In large desalination and municipal wastewater treatment plants, cost-effectiveness often leads to inexpensive prefilters being selected, which can increase operational costs if RO membranes aren’t adequately protected. SupaGard filters, manufactured by Amazon Filters, offer consistent Silt Density Index (SDI) control and enhanced dirt-holding capacity to maximize RO membrane efficiency and service life.
The Problem
Low-cost filters with nominal micron ratings may offer insufficient protection for RO systems. In previous systems, inconsistent SDI values and premature fouling of RO membranes led to frequent maintenance and interruptions. Achieving an SDI < 2.5 is vital for reliable, long-term operation, but standard filters often allow SDI to spike during service.
Why SupaGard? True Graded Density Filtration
SupaGard filters address these challenges with true graded density construction, ensuring contaminants are captured throughout the filter’s depth rather than only on the surface. This design increases contaminant removal efficiency, achieving SDI values consistently below 2.5 while minimizing blockages and extending filter life. A study revealed that where traditional filters removed only 20% of particles at 5µm, SupaGard achieved 96% removal, showcasing its superior performance.
Case Study: Effective Solutions with SupaGard
A wastewater facility upgraded to SupaGard’s skid-mounted, pumped filtration system with excellent results. Over 2-3 months of testing, SDI stabilized below 2, reducing RO fouling and maintenance needs, while providing cleaner water output. In addition, KilBac® SupaGard filters with antimicrobial properties address biofouling, extending filter life and reducing the risk of premature blockages.
Conclusion
Focusing on true graded density filters rather than solely micron ratings is key to efficient, sustainable filtration. SupaGard products offer robust prefiltration, reducing OPEX while safeguarding RO systems. Sustainable, reliable, and cost-effective, SupaGard ensures that your RO membranes deliver optimal performance in even the most challenging wastewater applications.
Full article reference:
https://www.amazonfilters.com/case-study/improved-protection-of-ro-membranes