Physical adsorption is the primary means by which activated carbon works to remove contaminants from water. Carbon’s highly porous nature provides a large surface area for contaminants (adsorbates) to collect. In simple terms, physical adsorption occurs because all molecules exert attractive forces, especially molecules at the surface of a solid (pore walls of carbon), and these surface molecules seek other molecules to adhere to.

Besides physical adsorption, chemical reactions can occur on a carbon surface. One such reaction is chlorine removal from water involving the chemical reaction of chlorine with carbon to form chloride ions. This reaction is important to POU treatment because this conversion of chlorine to chloride is the basis for the removal of some common objectionable tastes and odours from drinking water.

We stock a range of different activated carbon filters from various sources  and grades including:

  • Coal Based Activated Carbon( Pellet, Granular and Powder)
  • Granular Coconut Shell Activated Carbon
  • Wood based Activated Carbon Powder

Activated carbon is a favoured water treatment technique because of its multifunctional nature and the fact that it adds nothing detrimental to the treated water.

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    GAC Carbon Backwash Filters

    THE PWT  domestic  whole  house granular activated carbon filtration range  has proven reliability featuring the Fleck   and WS1TC valve, for automatic backwash at pre-set intervals. The activated filtration media adsorbs a wide range of unwanted impurities and contaminants including  chlorine, organics, odours and pigments.