Radical Waters New Patent for Granular Activated Charcoal Technology or Activated Granular Carbon Regeneration in Water Treatment Plants


3 June 2013

Radical Waters International recently added a new patent to its patent portfolio. The new “Activated Granular Carbon” patent is a progressive step for Radical Waters who was the first ECA (Electrochemically activated water) company to introduce a non-traditional ‘chemical free CIP” into the beverage market in 2007.

Granular Activated Charcoal (GAC) is a highly porous carbon matrix which serves as a substrate in water treatment facilities to absorb compounds, such as chlorine and other unwanted contaminants in pre-process water.

Often housed in columns, as with all filtration systems, regular maintenance is required to remove the filtered contaminants, build-up of Biofilm and microbial activity from the filter bed and effectively restore the carbon to its original state.

Conventional treatments include dosing small amounts of chlorine into the raw water supply pre-filtration to remove any unwanted microbial activity, however continuous low level dosing of biocidal agents into the incoming stream can result in a progressive escalation of tolerance by any microbial organisms established in the GAC.

These organisms typically cling to the porous surface and traditional procedures to regenerate GAC columns involves back-flushing, chlorine shock treatment, steam treatment and biocidal interventions where microbial populations have become established in the filter bed.

Radical Waters ECA technology has proven very effective in the regeneration of Carbon columns, where it replace the traditional methods of steam and biocides. The effectiveness of ECA is its ability to adjust the surface charge of the carbon granules promoting the release of both inorganic and organic biofilm deposits.

Radical Waters Sales Manager, Anton Louw comments, “It is imperative that we inform our customers so that ECA is viewed as a holistic solution for sanitation in plants as opposed to just an alternative CIP solution. While we have had immense success with our ECA CIP, GAC cleaning points the technology in a new direction and should certainly be considered by plants. After all, the ECA system is already installed and it stands to reason that it should be used to its maximum benefit

The Radical Waters ECA GAC Patent addresses and encompasses:


  • Increases the lapse time for recurrence of contamination in GAC columns.
  • Reduces microbial contamination to acceptable limits.
  • Rejuvenates and regenerates the GAC particles.
  • Ease of operation.
  • Extreme effectiveness in removing bio film in the column.
  • Non-hazardous, environmentally friendly treatment.
  • Reduces energy, water and chemical requirements and therefore saves money._______________________________________________________________

    Radical Waters (Pty) Ltd has spent 15 years focused on developing and commercializing its patented green ECA technology. The company has installed operating devices on six continents and in 23 countries primarily for blue chip companies. Radical Waters’ products are used in a wide range of markets formerly dependent on chemicals for controlling contamination and bacterial infection. The company has a focus on markets that include beverage production, meat & seafood, sauce manufacture, milling & starch and hospitality. Radical Waters (Pty) Ltd produces devices in its factory outside Johannesburg, South Africa. Radical Waters International (UK) LLP in London is responsible for international distributor relationships.

    Issued for: Radical Waters South Africa (Pty) Limited
    Issued by: Nikki Wilson: Operations Manager: +27 11 466 0610
    Email: nikki@radicalwaters.com
    Sales: Anton Louw
    Email: anton@radicalwaters.com
    Fax No: +27 11 466 0114
    Website: www.radicalwaters.com
    Facebook: www.facebook.com/radicalwaters
    Date: 3 June 2013