The Fullers clay would be just like the activated carbon wash or the bentonite clay wash. Not extreme at all. What I was envisioning is using another solvent that is non soluble in water. Then I would add something to the water that would expose the oxidized molecules like salt which would saturate the water. Mix the brine water and the solvent/extract vigorously. The hope is this would create an emulsion that contains the brine water and the oxidized material. As the emulsion is heavier, gravity would separate the extract/solvent. I would allow them to separate and drain the emulsion using a separatory funnel.