The method of providing for a fluid treatment, that includes providing a treatment
zone containing granular activated charcoal, and providing a stream of water containing
nutrients, contaminant degrading microbes and dissolved oxygen, and introducing
the stream to a treatment zone to effect adsorption of nutrients and microbes onto
the granular activated charcoal, thereby to provide a contaminant treatment matrix,
whereby contaminant in fluid flow through the matrix is reduced.
