Hollow Fiber Membrane

Sustainability Strategy at Water Department

ZISECO® External Pressure Filtration System

Contaminated water flows into the membrane fibers on the outside of the membrane and purified water exits through the center of the membrane.

ZISECO® External Pressure Filtration System

Contaminated water flows into the membrane fibers on the outside of the membrane and purified water exits through the center of the membrane.

ZISECO® Membrane Structure

Uniform Pore Size

The surface of the membrane filter has uniform pore size to ensure precise filtration

Cross-section of membrane fibers

Asymmetrical Membrane Structure

Each section of the membrane has an asymmetrical structure to increase the flux and service life of the membrane.

External surface structure of the membrane fibers

Open-ended Sponge Structure

The internal structure of the membrane is an open-ended sponge structure that lowers pressure and helps conserve energy when filtering through the membrane.

Internal Surface Structure of Membrane Fibers
Cross-section of membrane fibers
External surface structure of the membrane fibers
Internal Surface Structure of Membrane Fibers

ZISECO® Membranes Feature:

Safe Filtration

  1. Made with FDA approved and NSF 61 certified polysulfone (PSF).
  2. ZISECO membranes are NSF 42 certified
  3. Highly hydrophilic membranes with excellent water permeability and chlorine resistance.
  4. No added chemical moisturizing agents, odorless and no aftertaste. Safe for human consumption
  5. Uses high tech medical grade materials and innovative designs that last longer than typical polypropylene filters.

High Retention Rates

  1. The precision diameter of the filter pores is between 0.01-0.1μm
  2. Eliminates 99% or more contaminates like micro particles and micro organisms
  3. Retains beneficial nutrients like calcium and magnesium

High Flux Filtration

  1. Each section of the membrane is an asymmetrical porous structure that achieves high flux filtration
  2. Uniform pore size and a high perforation rate extend the service life of the membrane
  3. Miniaturized filter design reduces installation footprint

Low Operating Pressure

  1. Open-ended sponge structure ensures low filtration pressure
  2. Environmentally friendly product produces no waste and conserves energy

Quality Testing instruments

FLux Check, Capillary Flow Porometer, Laser Diffraction Particle Size Analyzer Air Particle Counter

Professional Certifications & Test Reports

NSF 42 Certified
SGS Anti-Microbial Test Report
SGS Cytotoxicity Test Report

Hollow Fiber Membrane Products

Contact Us

Hollow Fiber Membrane Sales Department

Mr. Steven Hsieh