title: New developments in reactor and process technology for sulfate reduction.
abstract: Sulfate reduction has been regarded in the past as an unwanted process in anaerobic treatment of sulfate-rich wastewaters. Research efforts were primarily focused on H2S toxicity, competition between sulfidogenic and methanogenic microorganisms and suppression of sulfidogenesis. More recently, the potential sulfidogenesis for treating a wide range of wastestreams contaminated with oxidized sulfurous compounds and/or heavy metals was also appreciated. Heavy metals can be removed by the formation and subsequent precipitation of poorly soluble metal sulfides. Basically two approaches can be distinguished in wastewater treatment: passive treatment using low-cost technologies and active treatment in newly developed bioreactors. Both strategies are discussed.
authors.affiliation: Sub-Department of Environmental Technology, Wageningen University, The Netherlands.
authors.forename: L W
authors.initials: LW
authors.lastname: Pol
authors.forename: P N
authors.initials: PN
authors.lastname: Lens
authors.forename: J
authors.initials: J
authors.lastname: Weijma
authors.forename: A J
authors.initials: AJ
authors.lastname: Stams
mesh_terms: D019149:Bioreactors; D003363:Cost Control; D010084:Oxidation-Reduction; D013431:Sulfates / Q000737:chemistry / Q000378:metabolism*; D013455:Sulfur / Q000737:chemistry / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D013431:Sulfates; D013455:Sulfur