title: Ammonia stripping, activated carbon adsorption and anaerobic biological oxidation as process combination for the treatment of oil shale wastewater.
abstract: Anaerobic biodegradability of oil shale wastewater was investigated after the following pretreatment sequence: ammonia stripping and activated carbon adsorption. Anaerobic biological treatment of oil shale wastewater is technically feasible after stripping at pH 11 for reducing the N-NH3 concentration, adsorption with 5 g/L of activated carbon in order to reduce recalcitrance and pH adjustment with CO2 so that the sulphate concentration in the medium remains low. After this pretreatment sequence, it was possible to submit the wastewater without dilution to an anaerobic treatment with 62.7% soluble chemical oxygen demand removal and specific methane production of 233.2 mL CH4STP/g CODremoved.
authors.affiliation: a Laboratory of Environmental Technology, School of Chemistry , Federal University of Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Verônica M F
authors.initials: VM
authors.lastname: Alexandre
authors.affiliation: a Laboratory of Environmental Technology, School of Chemistry , Federal University of Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Felipe V
authors.initials: FV
authors.lastname: do Nascimento
authors.affiliation: a Laboratory of Environmental Technology, School of Chemistry , Federal University of Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Magali C
authors.initials: MC
authors.lastname: Cammarota
mesh_terms: D000327:Adsorption; D000641:Ammonia / Q000737:chemistry*; D000693:Anaerobiosis; D002606:Charcoal / Q000737:chemistry*; D007220:Industrial Waste / Q000032:analysis*; D000066388:Oil and Gas Industry; D010084:Oxidation-Reduction; D062065:Wastewater / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D000641:Ammonia; D002606:Charcoal; D007220:Industrial Waste; D062065:Wastewater
keywords: Activated carbon adsorption; ammonia stripping; anaerobic treatment; oil shale; wastewater