发明名称 |
SUBSURFACE WATER PURIFICATION METHOD |
摘要 |
A method of producing purified water in a subsurface environment is provided in which ambient subsurface source water is introduced into and through one or more ultrafiltration membrane units of a subsurface water treatment system and producing thereby an ultrafiltrate substantially free of solid particulates having a largest dimension greater than 0.1 microns. An electrochemical unit in fluid communication with at least one ultrafiltration membrane unit provides an antifoulant solution. An ultrafiltrate-rich backwash fluid and at least a portion of the antifoulant solution are delivered to at least one non-producing ultrafiltration membrane unit during a backwash cycle. A flux of source fluid through each of the ultrafiltration membrane units of less than thirty gallons per square foot per day limits the need for backwash cycles. A reduction in the number of backwash cycles enhances system autonomy and useful life, and limits the need for intervention for maintenance and component replacement. |
申请公布号 |
US2016304371(A1) |
申请公布日期 |
2016.10.20 |
申请号 |
US201514711060 |
申请日期 |
2015.05.13 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
Wang Hua;Alam Zamir;Mosqueda-Jimenez Daniella B.;Plasencia Cabanillas Jose Luis;Adams Nicholas William Harcsar;Cadera Jason Daniel |
分类号 |
C02F9/00;E21B43/20;B01D61/58;B01D65/02;C02F1/44;B01D63/02 |
主分类号 |
C02F9/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method of producing purified water in a subsurface environment, the method comprising:
(a) introducing ambient subsurface source water into and through one or more ultrafiltration membrane units and producing thereby an ultrafiltrate substantially free of solid particulates having a largest dimension greater than 0.1 microns; (b) preparing in an electrochemical unit in fluid communication with at least one ultrafiltration membrane unit an aqueous solution comprising one or more hypohalous acid species; and (c) delivering an ultrafiltrate-rich backwash fluid and at least a portion of the aqueous solution comprising one or more hypohalous acid species to at least one non-producing ultrafiltration membrane unit during a backwash cycle;wherein a flux of source fluid through each of the ultrafiltration membrane units is less than thirty gallons per square foot per day. |
地址 |
Schenectady NY US |