Clarification of clay containing water
OwnerGerald A. Speckeninventor
Life of this patent
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Abstract
Clay-containing water from processing of oil or bituminous sands or from oil or gas well drilling sites is clarified by treating the water with a sufficient amount of an alkali permanganate to effect adequate clarification. The water may also be treated with an anionic and/or non-ionic polyelectrolyte to expedite the clarification of the water.
Claims17
A process for the clarification of clay-containing water, said water being selected from the group consisting of water from processing of bitumnous sands and water from oil or gas well drilling sites, said water containing between about 500 to about 100,000 ppm by weight of suspended clay particles, including treating the water with between about 0.5 to about 500 ppm of an alkali permanganate to cause coagulation and subsequent settling of substantially all said suspended clay particles.
A process for the clarification of clay-containing water, said water being selected from the group consisting of water from processing of bituminous sands and water from oil or gas well drilling sites, said water containing between about 500 and about 100,000 ppm by weight of suspended clay particles, including treating the water with between about 0.5 and about 500 ppm of potassium permanganate and with between about 1 and about 100 ppm of at least one polyelectrolyte selected from the group consisting of anionic and non-ionic polyelectrolytes to cause coagulation and subsequent settling of substantially all said suspended clay particles.
A process for the clarification of clay-containing water, said water being selected from the group consisting of water from processing of bituminous sands and water from oil or gas well drilling sites, said water containing between about 500 and about 100,000 ppm by weight of suspended clay particles, and said clay particles having hydrocarbons adsorbed thereon, including treating the water with between about 0.5 and about 500 ppm of potassium permanganate, and with between about 1 and about 100 ppm of at least one polyelectrolyte selected from the group consisting of anionic and non-ionic polyelectrolytes to cause coagulation and subsequent settling of substantially all said suspended clay particles.
Dependencies are inferred from the claim text.