Carbon block filter

Abstract

A process for making a metal impregnated Carbon block filter comprising the steps of: i. contacting activated Carbon particles with an aqueous solution of a salt of Silver, Zinc or Copper in the presence of ammonium hydroxide to form an aqueous mix; ii. mixing said aqueous mix with a binder having Melt Flow Rate less than 5 g / 10 minutes to form a mixture; iii. adding said mixture to a mould; iv. heating said mould to a temperature in the range of 150 to 350 °C; and, v. de-moulding the Carbon block filters.