Perforated Electrode Flow-Through (PEFT) cell

Perforated Electrode Flow-Through (PEFT) cell

The PEFT Cell uses a highly efficient and cost-effective electrochemical process to disinfect water supplies, with low electricity costs and no chemical additives. The cell's mode of action is summarised below: - Production of chlorine from the chloride ions naturally present in water, which inactivates pathogens. - Production of a high voltage electrice field (from low applied voltage), which disrupts the cell membranes of pathogens and enhances the lethality of chlorine. The PEFT Cell has a modular design and multiple modules can be connected to treat greater flows, meaning that the technology can be adapted to a range of applications.


WaikatoLink are seeking alternative applications for the PEFT Cell, where the value of the technology may be in the following areas: eliminating use of chemicals for disinfection; effective disinfection in low chlorine environments; effective operation in turbid environments.

Unique Selling Propositions
  • No need for any chemical additives.
  • Natural production of chlorine from incoming water supply.
  • Effective disinfection in Low chlorine environments.
  • Lower Power consumption, therefore A decreased running costs
  • Safer and more environmentally friendly solution

The PEFT Cell technology is currently being developed for the following applications:

  • Alternative to salt chlorinators for disinfection of swimming pools, where the PEFT Cell can produce required chlorine levels with significantly lower chloride inputs.
  • Disinfection of recycled water for hydroponics systems.
  • Disinfection of domestic household drinking water.
IP Strategy

Patent Pending, granted in NZ

Project Status

Proof of Concept - Early prototype built