Evaluating the integrity of a forward osmosis membrane using transmembrane pressure
US-2024246037-A1 · Jul 25, 2024 · US
Method of testing membranes and membrane-based systems
US8991235B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8991235-B2 |
| Application number | US-43681909-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 7, 2009 |
| Priority date | May 7, 2009 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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The invention includes methods for testing membranes and membrane-based systems by introducing particles into a feed liquid passing across the surface of a membrane wherein the particles have a size larger than the nominal cut-off of the membrane, and measuring the presence of the particles within a permeate solution which passes through the membrane. In one embodiment, the particles are selected from those which dissolve within the permeate solution after being measured. In another embodiment, the particles are selected from inorganic salts. Many additional embodiments are disclosed.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for testing a membrane-based system comprising: a) introducing particles into a feed liquid passing across the membrane wherein the particles have a size larger than the nominal cut-off of the membrane and which dissolve within the feed solution within 24 hours, and b) measuring the presence of the particles within a permeate solution which passes through the membrane; wherein the method is characterized by selecting particles which dissol…
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Physics · mapped topic
- B01D65/102Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8991235B2 cover?
- The invention includes methods for testing membranes and membrane-based systems by introducing particles into a feed liquid passing across the surface of a membrane wherein the particles have a size larger than the nominal cut-off of the membrane, and measuring the presence of the particles within a permeate solution which passes through the membrane. In one embodiment, the particles are select…
- Who is the assignee on this patent?
- Jons Steven D, Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification B01D65/102. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).