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Patent drawing for Floating porous hollow fiber membrane bundle
US 7,850,853 B2
Filtration US 7,850,853 B2 Expired

Floating porous hollow fiber membrane bundle

This invention describes a water filter system that uses bundles of hollow fibers to clean highly turbid wastewater. Each bundle is designed to hang freely and swing gently, preventing the fibers from getting tangled or breaking, which helps them last longer and produce cleaner water. The claims specifically detail a system where these bundles are suspended between a module head and an aeration head, with one end connected by a flexible cord and water collected through internal tubes within the casting heads.

Why it matters: The invention addresses membrane fouling and damage through flexible suspension and aeration. Since 2005, advancements in membrane materials have likely improved durability and reduced costs, while computational fluid dynamics could now optimize aeration for enhanced self-cleaning and longevity.

Status
ExpiredProtection ended and was never renewed
How hard to build
SpecializedHollow fiber membranes, precision casting, aeration system

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