Optimization of metal sulphide precipitation in fluidized-bed treatment of acidic wastewater

Sulphate-reducing biofilm and suspension processes were studied for treatment of synthetic wastewater containing sulphate, zinc and iron. With lactate supplemented wastewater with 170–230 mg/l Zn and 58 mg/l Fe, the following precipitation rates were obtained: 250 and 350 mg/l d for Zn in fluidized-...

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Veröffentlicht in:	Water research (Oxford) 2003, Vol.37 (2), p.255-266
Hauptverfasser:	Kaksonen, A.H., Riekkola-Vanhanen, M.-L., Puhakka, J.A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Biofilms Biomass Chemical Precipitation Drying Effluents Exact sciences and technology Failure Ferric Compounds - chemistry Fluid dynamics Fluidized-bed Fluidizing Hydraulics Hydrogen-Ion Concentration Iron Mass balance Optimization Other industrial wastes. Sewage sludge Oxidation Pollution Precipitates Precipitation Reactors Sludge Sulfides - chemistry Sulfur-Reducing Bacteria - physiology Sulphate reduction Suspension systems Waste Disposal, Fluid Wastes Wastewater Wastewater treatment Water treatment and pollution Zinc Zinc Sulfate - chemistry
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