Method for lake restoration

Dawson, Gaynor W; Mercer, Basil W

Title: Method for lake restoration

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Abstract

A process for removing pollutants or minerals from lake, river or ocean sediments or from mine tailings is disclosed. Magnetically attractable collection units containing an ion exchange or sorbent media with an affinity for a chosen target substance are distributed in the sediments or tailings. After a period of time has passed sufficient for the particles to bind up the target substances, a magnet drawn through the sediments or across the tailings retrieves the units along with the target substance.

Inventors:

Dawson, Gaynor W ^[1]; Mercer, Basil W ^[2]

Richland, WA
Pasco, WA

Issue Date:: 1979-01-01

Research Org.:: Battelle Memorial Institute, Columbus, OH (United States)

OSTI Identifier:: 863261

Patent Number(s):: 4134831

Assignee:: Battelle Memorial Institute (Richland, WA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J47/016 - Modification or after-treatment of ion-exchangers

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B3/42 - by ion-exchange extraction

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/488 - {for separation of magnetic materials, e.g. magnetic flocculation}

B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03C - MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS
B03C1/01 - by addition of magnetic adjuvants

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J47/011 - using batch processes

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/20 - Process efficiency

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DOE Contract Number:: AC06-76RL01830

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; lake; restoration; process; removing; pollutants; minerals; river; ocean; sediments; mine; tailings; disclosed; magnetically; attractable; collection; units; containing; exchange; sorbent; media; affinity; chosen; target; substance; distributed; period; time; passed; sufficient; particles; bind; substances; magnet; drawn; retrieves; mine tailings; removing pollutants; collection unit; /588/208/210/299/423/

Citation Formats


                    Dawson, Gaynor W, and Mercer, Basil W. Method for lake restoration.  United States: N. p., 1979. 
        Web.

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                    Dawson, Gaynor W, & Mercer, Basil W. Method for lake restoration.  United States.

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                    Dawson, Gaynor W, and Mercer, Basil W. Mon .  
        "Method for lake restoration".  United States.  https://www.osti.gov/servlets/purl/863261.

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@article{osti_863261,

  title        = {Method for lake restoration},

  author       = {Dawson, Gaynor W and Mercer, Basil W},

  abstractNote = {A process for removing pollutants or minerals from lake, river or ocean sediments or from mine tailings is disclosed. Magnetically attractable collection units containing an ion exchange or sorbent media with an affinity for a chosen target substance are distributed in the sediments or tailings. After a period of time has passed sufficient for the particles to bind up the target substances, a magnet drawn through the sediments or across the tailings retrieves the units along with the target substance.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1979},

  month        = {1}

}

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