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US 11,607,622 B2Granted
Low energy ejector desalination system
AssigneeBechtel Energy Technologies & Solutions, Inc.
InventorsJorge T. Aguinaldo, Joseph P. Kanzleiter, Saurabh Tonapi, Mukesh K. Shah
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Abstract
A system to treat and desalinate wastewater using a low energy ejector desalination system (LEEDS), which employs a static liquid-gas ejector and maximum heat integration in the water treatment system.
Claims21
A system for treating a raw wastewater feed stream, comprising:
- a heat exchanger to heat a wastewater stream and create a two-phase stream;
- a column in fluid communication with the heat exchanger for separating the two-phase stream into a vapor stream and a concentrated liquid stream;
- an ejector in fluid communication with the column for combining the vapor stream from the column and a high temperature liquid stream to produce an ejector two-phase stream;
- a knockout drum in fluid communication with the ejector that separates the ejector two-phase stream into a hot vapor stream and the high temperature liquid stream;
- and
- a degasser in fluid communication with and positioned downstream from the heat exchanger for collecting the hot vapor stream leaving the heat exchanger and producing a distillate stream.
3 more elements
A method for treating a raw wastewater feed stream, comprising:
- heating a wastewater stream to create a two-phase stream;
- separating the two-phase stream into a vapor stream and a concentrated liquid stream;
- combining the vapor stream and a high temperature liquid stream to produce another two-phase stream with a temperature higher than that of the vapor stream;
- separating the another two-phase stream into a hot vapor stream and the high temperature liquid stream;
- and
- condensing the hot vapor stream.
3 more elements
Dependencies are inferred from the claim text.