Wastewater hydrocarbon extraction and environmental treatment method and system
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United States of America Patent
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May 23, 2017
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Jun 10, 2011
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Jun 10, 2010
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Abstract
Method and system for extracting and recovering hydrocarbons from wastewater and treating the water to improve its condition. A series of specific unit operations result in the extraction of hydrocarbons, solids and contaminants and the treatment of water to a condition which is fit for re-use or environmentally sustainable discharge. Phase separation between the water and hydrocarbons is effected using flotation techniques followed by collection of the hydrocarbons using a movable collection surface. The aqueous phase is processed by multiple filtration steps. The result is significant extraction and recovery of hydrocarbons and conservation of water for re-use or discharge to the environment in a process which is continuous and scalable for large or small operations.
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