Activated carbon filters use coconut-shell, coal-based or wood-based carbon as the core medium, leveraging the dual mechanism of physical adsorption (surface area 800–1200 m²/g) and surface chemical reaction to remove organic contaminants, residual chlorine, VOCs, color bodies and odor compounds from water and solvents. They are an indispensable component in ultrapure water systems and chemical purification trains.
Three constructions are available: Carbon Block — high-density extruded blocks delivering particulate filtration ≤5μm with simultaneous adsorption and mechanical filtration; Wound Carbon — activated carbon fiber yarn spun around a core for low pressure drop and high flow; Carbon Fiber Cloth/Felt — high kinetic adsorption rate and short equilibrium time, ideal for low-concentration high-flux applications. Selection is driven by target contaminant molecular weight, polarity, concentration and empty bed contact time (EBCT).
Typical applications: UPW pretreatment (TOC removal, residual chlorine protection of downstream RO/EDI), semiconductor IPA and photoresist solvent reclaim, pharmaceutical purified water (USP <643> TOC control), food & beverage decoloration and deodorization, chemical color removal, and laboratory solvent purification.
Frequently Asked Questions
What contaminants do activated carbon filters remove?
How to choose between Carbon Block, Wound, and Carbon Cloth?
Do activated carbon filters release carbon fines?
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