Ultra Filtration

Ultra Filtration Systems

PURETEC water engineering ultra filtration (UF) systems are used for a variety of applications related to the production of drinking water. Our UF systems are NSF approved and used in more than 100 installations worldwide with more than 10 years of experience.

Ultra-filtration systems are based on a pressure-driven membrane separation process that separates material particles from the soluble components of water and wastewater. The size of UF membrane pores is usually between 0.01 and 0.1 microns and the membranes are highly efficient in removing bacteria, viruses, colloids, and silt.

PURETEC manufactures the entire range of UF systems for water treatment. We offer modular solutions with customized membranes and modules.

PURETEC water engineering ultra filtration (UF) systems are used for a variety of applications related to the production of drinking water. Our UF systems are NSF approved and used in more than 100 installations worldwide with more than 10 years of experience.

The Process

PURETEC UF systems apply hollow fiber membranes using polyether sulfone (PES) and polyvinylidene fluoride (PVDF) based materials. Outside-in and outside-out membranes are used, depending on solid loading of the treated water. We usually offer dead-end type filtration systems that consume less energy than cross-flow systems and their operational costs are lower. We offer cross-flow UF systems wherever high solid loading requires it.

PURETEC UF systems usually work at constant pressure and permeate flow. When trans-membrane pressure (TMP) increases above the set point the system is automatically back-flushed. Disinfectants, oxidizers and other cleaning agents can be used to remove and prevent biological and other fouling.

Applications

  • Drinking water production from natural fresh water (ground or surface water)
  • Tertiary treatment of domestic wastewater after primary and secondary treatments for reuse or rejection into the environment
  • Pre-treatment before demineralization by nano-filtration, reverse osmosis or ion exchange resins