Biodegradation of Cyanide and thiocyanate

摘要

It relates to a method for treating a Solution containing cyanide or thiocyanate, which includes: (i) make this solution contained in a First reactorAnd that previously underwent a phase of treatment of heavy metals in contact with at least one combination of active bacteria contained in a microbial Culture and fungal culture.As Fusarium oxysporum; (ii) introduce air into the solution of the first reactor; (iii) vary the retention time of the solution in the first reactor, 4 to 24 hours.Depending on the concentration of Cyanide and thiocyanate in the influent; (iv) to submit the material discharged from the Reactor to a First Phase Liquid / solid Separation,And bring back at least a portion of the separated Solids to the first reactor to maintain an active Biological population in the first reactor; and,(V) to Purge the excess sludge withdrawn from the first reactor to prevent Poisoning of biomass by the heavy metals in the first reactor