Patent application number | Description | Published |
20100096317 | FLAT SHEET MEMBRANE ELEMENT FOR FILTRATION AND FLAT SHEET MEMBRANE FILTRATION MODULE - A flat sheet membrane element for performing solid-liquid separation by immersion in a liquid to be treated which contains a suspended component includes sheet-shaped filtration membranes disposed opposite to each other with a space for a treated liquid flow path, a support portion for securing the space for the treated liquid flow path, and a peripheral sealing portion for sealing the peripheral edges of the filtration membranes arranged opposite to each other so as to form at least one treated liquid outlet, the filtration membranes including at least expanded PTFE (polytetrafluoroethylene) porous membranes. | 04-22-2010 |
20100258497 | SEPARATION MEMBRANE ELEMENT FOR FILTRATION AND MEMBRANE MODULE FOR FILTRATION - Provided is a separation membrane element for filtration which has excellent filtration performance and is excellent in terms of chemical resistance and mechanical strength and with which a stable permeation flow rate can be obtained over a long period of time. A separation membrane element for filtration is configured to perform solid-liquid separation treatment by being immersed in a liquid to be treated which contains a suspended component, and includes a cylindrical filtration membrane obtained by forming a porous sheet including at least an expanded porous PTFE (polytetrafluoroethylene) membrane into a cylindrical shape and in which a hollow surrounded by the porous sheet serves as a treated-liquid passage; a support member for maintaining the hollow serving as the treated-liquid passage; and sealing parts which seal both axial-direction ends of the cylindrical filtration membrane so as to leave at least one treated-liquid takeout opening open. | 10-14-2010 |
20100264068 | Method of produced water treatment, method of water reuse, and systems for these methods - A method of produced water treatment in an in-situ recovery method of producing bitumen from oil sand, the method has the steps of: separating bitumen from bitumen-mixed fluid so as to leave produced water, the bitumen-mixed fluid having been recovered from the oil sand wells; and filtering the produced water via a microfiltration membrane made of polytetrafluoroethylene. | 10-21-2010 |
20110089013 | Apparatus of produced water treatment, system and method of using the apparatus, and method of water reuse by using the same - An apparatus of produced water treatment, to be adopted in an in-situ recovery method of producing bitumen from oil sand, the apparatus capable of removing the oil from produced water, the produced water of being left by separating the bitumen from bitumen-mixed fluid having been recovered from the oil sand, the apparatus having: a vessel for receiving the produced water; a submerge type filtration membrane module, installed in the vessel, for filtering the produced water in the condition of the membrane being submerged in the produced water; and a bubble generator for generating bubbles to be forwarded toward the submerged filtration membrane in the produced water. | 04-21-2011 |
20120103904 | SEPARATION MEMBRANE MODULE FOR OIL-CONTAINING WASTEWATER TREATMENT, OIL-CONTAINING WASTEWATER TREATMENT METHOD, AND OIL-CONTAINING WASTEWATER TREATMENT APPARATUS - Provided is a separation membrane module which is suitable for filtration of oil-containing wastewater. The separation membrane module for oil-containing wastewater treatment separates water-insoluble oil from oil-containing wastewater that has high turbidity and/or high temperature. The separation membrane module for oil-containing wastewater treatment is characterized by using a hollow fiber membrane which is composed of an alkali-resistant porous membrane selected from polytetrafluoroethylene (PTFE), polysulfone (PSF), and polyether sulfone (PES) and which has a tensile strength of 30 N or more, and characterized in that each of the hollow fiber membrane and an end-sealing member of the hollow fiber membrane has a heat distortion temperature of 100° C. or higher. | 05-03-2012 |
20140042096 | SEPARATION MEMBRANE MODULE FOR PROCESSING OF OIL-CONTAINING WASTE WATER AND METHOD FOR PROCESSING OIL-CONTAINING WASTE WATER - Provided is a separation membrane module which is suitable for filtration of oil-containing wastewater. The separation membrane module for oil-containing wastewater treatment separates water-insoluble oil from oil-containing wastewater that has high turbidity and/or high temperature. The separation membrane module for oil-containing wastewater treatment is characterized by using a hollow fiber membrane which is composed of an alkali-resistant porous membrane selected from polytetrafluoroethylene (PTFE), polysulfone (PSF), and polyether sulfone (PES) and which has a tensile strength of 30 N or more, and characterized in that each of the hollow fiber membrane and an end-sealing member of the hollow fiber membrane has a heat distortion temperature of 100° C. or higher. | 02-13-2014 |
20160031727 | WASTEWATER TREATMENT METHOD, MEMBRANE DISTILLATION MODULE AND WASTEWATER TREATMENT APPARATUS - A wastewater treatment method for purifying heated wastewater produced when recovering bitumen from an oil sand layer by an in-situ recovery method for reuse as steam is provided. The method includes extracting bitumen from a bitumen-mixed fluid recovered by injecting high-temperature steam into the oil sand layer, and subjecting separated heated wastewater to membrane distillation using a hydrophobic porous membrane provided in a membrane distillation module to recover treated water from which an oil component, a salt component, and an organic matter contained in the heated wastewater have been reduced/removed. | 02-04-2016 |
20160038879 | MEMBRANE DISTILLATION MODULE AND WASTEWATER TREATMENT APPARATUS - A membrane distillation module and a wastewater treatment apparatus are provided which performs purification through membrane distillation using a porous membrane provided with an oil-repellent layer obtained by combining and immobilizing a substance having an oil-repellent function on at least one surface of a base membrane implemented by a hydrophobic porous membrane. | 02-11-2016 |
20160039686 | WASTEWATER TREATMENT METHOD, MEMBRANE DISTILLATION MODULE AND WASTEWATER TREATMENT APPARATUS - Provided is a method for purifying wastewater containing an oil component, a salt component, and an organic matter produced when extracting petroleum from a stratum or a bedrock layer, including performing membrane distillation using a fluorine-based resin hydrophobic porous membrane made of PTFE (polytetrafluoroethylene), PVDF (polyvinylidene difluoride) or PCTFE (polychlorotrifluoroethylene) and having a practical maximum operating temperature exceeding 100° C., and simultaneously removing the oil component, the salt component and the organic matter contained in the wastewater. | 02-11-2016 |