Vacuum distillation and desalination
US-2018345167-A1 · Dec 6, 2018 · US
Brine management system for achieving zero liquid discharge
US2022127165A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022127165-A1 |
| Application number | US-201917284890-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 16, 2019 |
| Priority date | Oct 17, 2018 |
| Publication date | Apr 28, 2022 |
| Grant date | — |
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Abstract
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Methods, apparatus, and systems for removing salt from brine are provided. A surfactant is mixed with the brines and the brines are atomized to form airborne brine droplets from which the liquid component can be rapidly evaporated. The remaining airborne salt particles are than filtered from the air stream and the water vapor condensed for collection and downstream use or processing.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for separating salt from a brine comprising salt, water, and a surfactant, the method comprising: atomizing the brine to form airborne brine droplets; exposing the airborne brine droplets to radiation that vaporizes water in the brine droplets, leaving airborne salt particles; filtering the airborne salt particles from the air; and condensing and collecting the vaporized water. 2 . The method of claim 1 , wherein the surfactant is a cationic surfactant. 3 . The method of claim 1 , wherein the surfactant is an edible surfactant. 4 . The method of claim 1 , wherein the surfactant is a phospholipid surfactant. 5 . The method of claim 1 , wherein the radiation is solar radiation. 6 . The method of claim 1 , wherein the brine is a produced in a water desalination plant. 7 . The method of claim 6 , wherein the water desalination plant is a seawater desalination plant. 8 . The method of claim 1 , wherein the brine has a salt concentration in the range from 0.05 to 3 weight percent. 9 . The method of claim 1 , wherein the brine has a surfactant concentration in the range from 0.1 to 1 mM. 10 . The method of claim 1 , wherein atomizing the brine is carried out using a jet nebulizer. 11 . The method of claim 1 , wherein the brine droplets have diameters in the range from 1 μm to 10 μm. 12 . The method of claim 1 , wherein filtering the airborne salt particles from the air comprises passing the airborne salt particles over a plurality of wires to which the salt particles adhere. 13 . The method of claim 1 , wherein collecting and condensing the vaporized water comprises passing the vaporized water over a wavy surface on which the vaporized water condenses.
Assignees
Inventors
Classifications
using solar energy · CPC title
Seawater, e.g. for desalination · CPC title
Organic compounds · CPC title
using solar energy · CPC title
- C02F1/12Primary
Spray evaporation · CPC title
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- What does patent US2022127165A1 cover?
- Methods, apparatus, and systems for removing salt from brine are provided. A surfactant is mixed with the brines and the brines are atomized to form airborne brine droplets from which the liquid component can be rapidly evaporated. The remaining airborne salt particles are than filtered from the air stream and the water vapor condensed for collection and downstream use or processing.
- Who is the assignee on this patent?
- Univ Northwestern
- What technology area does this patent fall under?
- Primary CPC classification C02F1/12. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Apr 28 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).