Hollow Fiber Ultrafiltration Cartridge System Designed To Withstand Flow Variations

Hollow Fiber Ultrafiltration Cartridge System Designed To Withstand Flow Variations
The PURON MP treatment system with ultrafiltration cartridge from Koch Membrane Systems

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The PURON MP treatment system with ultrafiltration cartridge from Koch Membrane Systems is designed for high-solids water and wastewater applications, including surface-water treatment, reverse osmosis pretreatment and tertiary wastewater treatment.

Made to handle feed TSS levels up to 250 mg/L, the filtration system features a single-potting cartridge that allows air scouring to penetrate the fiber bundle, releasing accumulated solids to the bottom where they are drained away. Each cartridge is 81 inches tall and about 8 inches in diameter.

“Because there’s no potting at the bottom of the cartridge, the loose fibers can handle higher upsets with more effective scouring and solids draining,” says Kevin Phillips, product development manager for Koch Membrane Systems. “When you have a storm event and higher feed turbidity, it operates at lower pressures and can ride those out without shutting down.”

Like the membrane used in the submerged PURON products for over a decade, PURON MP features a membrane that is structurally reinforced with a polyester braid.

“There’s virtually no chance of fiber breakage, so it reduces your maintenance expenses while upholding permeate quality,” Phillips says. “The product can easily operate in wastewater applications coming off a secondary clarifier with high turbidity or flow excursions. It also can handle high coagulant doses for particular reuse applications; for example, to reduce permeate dissolved organics. In many water applications, the treatment system can eliminate clarifier pretreatment, minimize downtime and reduce chemical usage.”

When used for polishing, the system can filter effluent to low turbidity where solids are essentially no longer present in the permeate. Depending on the wastewater source, filtered water can be used for direct reuse, such as irrigation or mixing salt brine for deicing.

KMS offers packaged filtration systems with six to 10 cartridges per skid, which can handle about 50-250 gpm, while custom designs with 24, 40 or 64 cartridges per skid can handle up to 20 mgd or more. 888/677-5624; www.kochmembrane.com.



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