METHOD FOR TREATING MINE WASTE

A method for treating mine waste is described. The method includes forming a flocculated stream by adding a first flocculant to a waste stream derived from a water based extraction of bitumen from oil sands. The waste stream comprises fine particles and solids. The flocculated stream is transported...

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Bibliographische Detailangaben
Hauptverfasser:	CLINGMAN, SCOTT R, PEIFFER, DENNIS G, REN, WEI, SURY, KEN N
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	A method for treating mine waste is described. The method includes forming a flocculated stream by adding a first flocculant to a waste stream derived from a water based extraction of bitumen from oil sands. The waste stream comprises fine particles and solids. The flocculated stream is transported to a disposal area. A reflocculated stream is formed by adding a second flocculant to the flocculated stream after transporting the flocculated stream. The reflocculated stream is deposited in a deposition area within the disposal area. The first flocculant and the second flocculant comprise a non-ionic polymer and an anionic polymer. Méthode de traitement de déchets miniers. La méthode consiste à former un flux floculé en ajoutant un premier floculant à un flux de déchets dérivé de lextraction du bitume, à laide dun procédé à base deau, contenu dans des sables bitumineux. Le flux de déchets comprend des particules fines et des solides. Le flux floculé est transporté vers un site de dépôt. Dautre part, un flux refloculé est formé par lajout dun deuxième floculant au flux floculé, après le transport du flux floculé. Le flux refloculé est déposé dans une zone de dépôt du site de dépôt. Le premier floculant et le deuxième floculant comprennent un polymère non ionique et un polymère anionique.