Process for removal of ammonia and acid gases from contaminated waters

Title: Process for removal of ammonia and acid gases from contaminated waters

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Abstract

Contaminating basic gases, i.e., ammonia, and acid gases, e.g., carbon dioxide, are removed from process waters or waste waters in a combined extraction and stripping process. Ammonia in the form of ammonium ion is extracted by an immiscible organic phase comprising a liquid cation exchange component, especially an organic phosphoric acid derivative, and preferably di-2-ethyl hexyl phosphoric acid, dissolved in an alkyl hydrocarbon, aryl hydrocarbon, higher alcohol, oxygenated hydrocarbon, halogenated hydrocarbon, and mixtures thereof. Concurrently, the acidic gaseous contaminants are stripped from the process or waste waters by stripping with steam, air, nitrogen, or the like. The liquid cation exchange component has the ammonia stripped therefrom by heating, and the component may be recycled to extract additional amounts of ammonia.

Inventors:

King, C Judson ^[1]; MacKenzie, Patricia D ^[2]

Kensington, CA
Berkeley, CA

Issue Date:: 1985-01-01

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

OSTI Identifier:: 865632

Patent Number(s):: 4547293

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

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C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F2101/16 - Nitrogen compounds, e.g. ammonia

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D19/0005 - {with one or more auxiliary substances}

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/26 - by extraction
C02F1/20 - by degassing, i.e. liberation of dissolved gases
C02F1/586 - {by removing ammoniacal nitrogen

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DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: process; removal; ammonia; acid; gases; contaminated; waters; contaminating; basic; carbon; dioxide; removed; waste; combined; extraction; stripping; form; ammonium; extracted; immiscible; organic; phase; comprising; liquid; cation; exchange; component; especially; phosphoric; derivative; preferably; di-2-ethyl; hexyl; dissolved; alkyl; hydrocarbon; aryl; alcohol; oxygenated; halogenated; mixtures; concurrently; acidic; gaseous; contaminants; stripped; steam; air; nitrogen; therefrom; heating; recycled; extract; additional; amounts; stripping process; alkyl hydrocarbon; phase comprising; contaminated water; waste water; cation exchange; organic phase; carbon dioxide; phosphoric acid; halogenated hydrocarbon; acid gas; acid gases; waste waters; acid derivative; combined extraction; oxygenated hydrocarbon; immiscible organic; gaseous contaminant; gaseous contaminants; change component; additional amount; process water; /210/95/

Citation Formats


                    King, C Judson, and MacKenzie, Patricia D. Process for removal of ammonia and acid gases from contaminated waters.  United States: N. p., 1985. 
        Web.

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                    King, C Judson, & MacKenzie, Patricia D. Process for removal of ammonia and acid gases from contaminated waters.  United States.

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                    King, C Judson, and MacKenzie, Patricia D. Tue .  
        "Process for removal of ammonia and acid gases from contaminated waters".  United States.  https://www.osti.gov/servlets/purl/865632.

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@article{osti_865632,

  title        = {Process for removal of ammonia and acid gases from contaminated waters},

  author       = {King, C Judson and MacKenzie, Patricia D},

  abstractNote = {Contaminating basic gases, i.e., ammonia, and acid gases, e.g., carbon dioxide, are removed from process waters or waste waters in a combined extraction and stripping process. Ammonia in the form of ammonium ion is extracted by an immiscible organic phase comprising a liquid cation exchange component, especially an organic phosphoric acid derivative, and preferably di-2-ethyl hexyl phosphoric acid, dissolved in an alkyl hydrocarbon, aryl hydrocarbon, higher alcohol, oxygenated hydrocarbon, halogenated hydrocarbon, and mixtures thereof. Concurrently, the acidic gaseous contaminants are stripped from the process or waste waters by stripping with steam, air, nitrogen, or the like. The liquid cation exchange component has the ammonia stripped therefrom by heating, and the component may be recycled to extract additional amounts of ammonia.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1985},

  month        = {1}

}

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