Therichandcheapclayresources, assorted withalkalinematerials, mayfurtherimprove the resistibilityofsoils, and therefore secure the safety of plants in over criteria ofheavy metalcadmium.
The project intends to use a proprietary process employing an in-duct scrubber to reclaim the alkalineclay produced as the primary by-product of the aluminum manufacturing process.
The scrubbed alkalineclay would then be combined with treated flue gas, which is a carbon-rich gas that is normally released into the atmosphere during the manufacturing process.
The scientists said the locale was almost certainly a primordial lake bed, rich in clay minerals, where the water many eons ago wasn't too salty or alkaline for life to thrive.