BIOFILM REMEDIATION OF METAL CONTAINING WASTEWATER

摘要

Apparatus and method for treating wastewater contaminated with a heavy metal (cadmium, iron, nickel, radium, uranium, cobalt, lead, manganese, arsenic ) in a reactor vessel containing a plurality of biofilm retaining structures. Each of the structures is at least partially coated with a biofilm which may include a plurality of bacteria ( Deinococcus geothermalis, Deinococcus radiodurans, Vibrio proteolyticus, Shewanella piezotolerans, Shewanella baltica, Pantoea agglomerans, Vibrio vulnificus ) retained in a matrix whereby the matrix may include DNA, protein and carbohydrates produced by the bacteria. The matrix comprises a negatively changed material that attracts positive metal ions of the metal and draws the metal into the matrix.