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Method for treating water containing iron, manganese and arsenic

  • US 7,459,086 B2
  • Filed: 04/30/2003
  • Issued: 12/02/2008
  • Est. Priority Date: 05/07/2002
  • Status: Expired due to Fees
First Claim
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1. A method of treatment of waters, in particular to reduce their iron, manganese and arsenic content,the method comprising passing the waters over at least one bed of filter material comprising an associationof at least one iron-based divided material in the hydroxide state, the iron-based divided material in the form of particles of dimensions 0.3-2 mm;

  • andof manganese dioxide grains having an apparent density of the order of 2 and a hardness greater than 6 on Moh'"'"'s scale.

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