WATER TREATMENT SYSTEM AND METHOD

摘要

A water treatment apparatus and system, comprising a treatment tank with a plurality of flow-through containers filled with iron shavings. The water is recirculated through the containers of iron shavings in series to treat contaminants, including but not limited to hexavalent chrome. The hexavalent chrome is converted to trivalent chrome via electron transfer between the iron molecules and the chrome molecules. The hydraulic detention time (circulation time) can vary.