title: Treatment and electricity harvesting from sulfate/sulfide-containing wastewaters using microbial fuel cell with enriched sulfate-reducing mixed culture.
abstract: Anaerobic treatment of sulfate-laden wastewaters can produce excess sulfide, which is corrosive to pipelines and is toxic to incorporated microorganisms. This work started up microbial fuel cell (MFC) using enriched sulfate-reducing mixed culture as anodic biofilms and applied the so yielded MFC for treating sulfate or sulfide-laden wastewaters. The sulfate-reducing bacteria in anodic biofilm effectively reduced sulfate to sulfide, which was then used by neighboring anode respiring bacteria (ARB) as electron donor for electricity production. The presence of organic carbons enhanced MFC performance since the biofilm ARB were mixotrophs that need organic carbon to grow. The present device introduces a route for treating sulfate laden wastewaters with electricity harvesting.
authors.affiliation: Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan. cedean@mail.ntust.edu.tw
authors.forename: Duu-Jong
authors.initials: DJ
authors.lastname: Lee
authors.forename: Chin-Yu
authors.initials: CY
authors.lastname: Lee
authors.forename: Jo-Shu
authors.initials: JS
authors.lastname: Chang
mesh_terms: D001419:Bacteria / Q000737:chemistry / Q000378:metabolism*; D018441:Biofilms; D057919:Biological Oxygen Demand Analysis; D011211:Electric Power Supplies; D004560:Electricity; D004563:Electrochemistry; D007220:Industrial Waste; D019344:Lactic Acid / Q000737:chemistry; D010084:Oxidation-Reduction; D013431:Sulfates / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry*; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000737:chemistry
chemical_list: D007220:Industrial Waste; D019344:Lactic Acid; D013431:Sulfates; D013440:Sulfides; D062065:Wastewater; D014874:Water Pollutants, Chemical