Products > membrane Daicen membranes are extensively used and acclaimed in a wide range of fields from water treatment for sound hydroenvironment conservation and recycling of water resources, to food and other industries related to everyday life. Our products are available in three types of membrane materials: cellulose acetate (CA), polyethersulfone (PES) and polyacrylonitrile (PAN). A hollow fiber, tubular or spiral module can be selected for the best combination of membrane material and module according to your application needs. The cellulose acetate (CA) hollow fiber ultrafiltration (UF) membrane module in particular is commonly used in many water plants, contributing greatly to providing quality water. Large hollow fiber modules F50/F20 are the ideal models for water purification. Cellulose acetate (CA) featuring high hydrophilicity is used as the membrane material. F20 is a cartridge type designed to save both waste and cost. Small/Medium hollow fiber modules Three types of membrane materials are available: cellulose acetate (CA), polyethersulfone (PES) and polyacrylonitrile (PAN). Select from among the many models of various sizes and grades. Tubular modules These modules are optimum for treatment high turbidity, concentration liquids and water containing a high suspended solids for which hollow fiber modules do not work. Spiral modules (MF/UF/NF) These models are ideal for oil-water separation as well as for separation/recovery of wastewater containing electrocoat paints and water-based paints. Table of membrane modules The table shows the many types of membrane modules those meet diverse application requirements.