Patent ID: 7648628
Filing Date: 2010-01-19
Classification: C02F

Abstract:
1. A water treatment system for an aircraft, comprising: a reformer; a water supply arrangement for supplying gray water or black water; a water treatment arrangement for treating the supplied gray water or black water; and a water delivery arrangement including a delivery line configured to communicate with said reformer for delivering the treated gray water or black water; wherein the water treatment arrangement comprises a first stage, a second stage and a third stage; wherein the first stage comprises a first filter arranged for carrying out a first filtration of the supplied gray water or black water; wherein the second stage comprises a collection tank including a granulate; wherein the second stage is arranged for binding substances contained in the supplied gray water or black water to said granulate, said granulate including at least a first chemically active substance or a second chemically active substance, the granulate being admixed to the supplied gray water or black water in the collection tank in the second stage; wherein the third stage comprises a second filter arranged for carrying out a second filtration for separating the granulate from the supplied gray water or black water and a granulate return line arranged for returning said granulate to said collection tank; and wherein the treated gray water or black water delivered by the water delivery arrangement is suitable for use in the reformer.