<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Petroleum coke adsorption as a water management option for oil sands process-affected water"^^ . "Water is integral to both operational and environmental aspects of the oil sands industry. A water treatment option based on the use of petroleum coke (PC), a by-product of bitumen upgrading, was examined as an opportunity to reduce site oil sands process-affected water (OSPW) inventories and net raw water demand. Changes in OSPW quality when treated with PC included increments in pH levels and concentrations of vanadium, molybdenum, and sulphate. Constituents that decreased in concentration after PC adsorption included total acid-extractable organics (TAO), bicarbonate, calcium, barium, magnesium, and strontium. Changes in naphthenic acids (NAs) speciation were observed after PC adsorption. A battery of bioassays was used to measure the OSPW toxicity. The results indicated that untreated OSPW was toxic towards Vibrio fischeri and rainbow trout. However, OSPW treated with PC at appropriate dosages was not acutely toxic towards these test organisms. Removal of TAO was found to be an adsorption process, fitting the Langmuir and Langmuir–Freundlich isotherm models. For TAO concentrations of 60 mg/L, adsorption capacities ranged between 0.1 and 0.46 mg/g. This study demonstrates that freshly produced PC from fluid cokers provides an effective treatment of OSPW in terms of key constituents' removal and toxicity reduction."^^ . "2012-06" . . "427-42" . . "Elsevier"^^ . . . "Science of The Total Environment"^^ . . . "00489697" . . . . . . . . . . . . . . . . . "Mohamed"^^ . "Gamal El-Din"^^ . "Mohamed Gamal El-Din"^^ . . "Pamela"^^ . "Chelme-Ayala"^^ . "Pamela Chelme-Ayala"^^ . . "Michael D."^^ . "MacKinnon"^^ . "Michael D. MacKinnon"^^ . . "Daniel W."^^ . "Smith"^^ . "Daniel W. Smith"^^ . . "Warren"^^ . "Zubot"^^ . "Warren Zubot"^^ . . "Syncrude Canada Ltd., Research and Development, Edmonton, Alberta, Canada"^^ . . . "OSPM Solutions Ltd., Hamilton, Ontario, Canada"^^ . . . "University of Alberta, Department of Civil and Environmental Engineering, Edmonton, Alberta, Canada"^^ . . . "University of Alberta, Department of Civil and Environmental Engineering, Edmonton, Alberta, Canada"^^ . . . "University of Alberta, Department of Civil and Environmental Engineering, Edmonton, Alberta, Canada"^^ . . . . . . "HTML Summary of #1743 \n\nPetroleum coke adsorption as a water management option for oil sands process-affected water\n\n" . "text/html" . . . "Other-additional study" . . . "Alberta" . . . "Unconventional hydrocarbon extraction" . . . "Other inducing technology types" . .