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  • HOME
    • About us
    • Pollet Water Group
  • FIELDS OF APPLICATION
  • PRODUCTS
    • Softeners >
      • Domestic Softeners >
        • Coral Softener
        • Micro Softener
        • Swan Softener
        • Delta Non Electric
      • Commercial Softeners
    • Filtration >
      • Filters & Housing
      • Sediment Reduction
      • Iron & Manganese
      • pH Systems
      • Arsenic Reduction
      • Nitrate Reduction
      • Carbon Filters
      • Colour Reduction
      • Hydrogen Sulphide
    • Reverse Osmosis >
      • Domestic RO
      • Industrial RO
      • RO Membranes
    • Valves
    • Vessels & Tanks >
      • Composite Vessels & distribution
      • Expansion vessels
      • Brine Tanks
      • Dosing Tanks & Bunds
    • UV Disinfection
    • Resin & Filter Media >
      • Ion Exchange Resins
      • Filter Media
  • Documentation
    • Catalogues
  • TECHNICAL FORUM
    • Datasheets
    • Manuals
    • Private Water Supplies
    • How Water Softeners Work
    • Conversions and Useful Data
  • NEWS
  • CONTACT

Colour Reduction

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Colour Reduction
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 Colour in water (after it has been filtered) is typically caused by both iron and manganese compounds or by organic compounds. If the colour is due to iron or manganese there are specific treatments (see the iron and manganese data sheets). If the colour is due to organics then treatment is normally by ion exchange or activated carbon. Organic colour comes from decaying vegetation and may be completely soluble or particulate. Tannins (Humic and Fumic acids) are by far the most common class of compounds and give the water a yellow/brown tint. In highland areas where water runs off peat the water can be virtually brown.
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