PROCESS FOR TREATING SULPHATE-CONTAINING EFFLUENT

摘要

A bioreaction system for treating sulphate-containing effluent, the system including a bioreactor, the bioreactor containing sulphate containing effluent; a metabolisable carbon energy source; a culture of sulphate-reducing microorganisms for reducing the sulphate in the effluent to sulphide; and a culture of methane-producing organisms for producing methane from the carbon energy source, wherein the arrangement is such that the metabolisable carbon energy source is present in the bioreactor in an amount in excess of that which would be required for the biological reduction of sulphate to sulphide in the effluent.