Apparatus and method for brine separation and reuse
a technology of electrolysis membrane and apparatus, applied in the direction of dispersed particle separation, separation process, specific water treatment objectives, etc., can solve the problems of not cost effective to simply dispose of the reject solution, and the removal of the contaminated brine solution poses a substantial cos
Inactive Publication Date: 2005-07-28
EXERGY TECH
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Benefits of technology
"The invention is about a system and method for separating impurities from brine solutions using electrolytic membrane separation (EMS). The system is designed to recycle the brine solution for reuse in regenerating ion exchange resins, reducing waste and costs. The invention also includes a membrane electrolysis (ME) unit and a flowchart for the operation of the EMS subsystem. The technical effects of the invention include reducing the volume of waste, recycling brine solutions, and concentrating impurities for disposal or treatment."
Problems solved by technology
Such removal of the contaminated brine solution poses a substantial cost.
Since the composition of the reject solution is substantially water, and only a small amount of separated ionic material, it is not cost effective to merely dispose of the reject solution.
Method used
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Embodiment Construction
[0022] Herein, an exemplary embodiment of the invention relates to an electrolytic membrane separation (EMS) subsystem and improved operations thereof. According to one embodiment, the EMS subsystem is configured to remove one or more impurities from a contaminated brine solution and to recycle the reusable brine solution for subsequent use in regenerating ion exchange resins. According to another embodiment of the invention, the EMS subsystem is configured to concentrate the impurities recovered from the contaminated brine solution for subsequent disposal or treatment.
[0023] Herein, the embodiments of the invention described are not exclusive; rather, they merely provide a thorough understanding of the invention. Also, well-known chemicals, reactions and elements are not set forth in detail in order to avoid unnecessarily obscuring the invention.
[0024] In the following description, certain terminology is used to describe features of the invention. For example, the term “brine sol...
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Abstract
According to one embodiment, an electrolytic membrane separation (EMS) subsystem is configured to remove one or more impurities from a contaminated reject solution and to recycle the reusable reject solution for subsequent use in regenerating ion exchange resins. According to another embodiment of the invention, the EMS subsystem is configured to concentrate the impurities recovered from the contaminated brine solution for subsequent disposal or treatment.
Description
FIELD [0001] The invention relates to the field of electrolytic membrane separation systems. GENERAL BACKGROUND [0002] Currently, there exist a number of conventional systems for separating impurities from a feed solution. For example, ion exchange systems are configured with resins to extract impurities from a feed liquid such as groundwater and / or potable water. These impurities are accumulated until the ion exchange resin has been exhausted, namely all of the replacement ions coated on the resin are gone. Thereafter, the ion exchange resin must be either disposed of as a hazardous material or regenerated. [0003] In order to regenerate the ion exchange resin, a large volume of brine solution is applied thereto. In most cases, the brine solution is an aqueous solution, perhaps with an elevated level of minerals, such as replacement ions for ion exchange resin regeneration. [0004] During regeneration of the resin, the brine solution causes the impurities to be released. As a result,...
Claims
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IPC IPC(8): C02F1/461C02F1/469C25C7/00C25D17/00
CPCC02F1/469C02F1/4693C02F1/4695C25B15/08C02F2101/12C02F2101/20C02F2201/46115C02F2101/103C02F1/461C02F2201/46185C02F2303/22
Inventor REINHARD, FRED P.
Owner EXERGY TECH