Water treatment method

Martin, Frank S; Silver, Gary L

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
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A44 - haberdashery
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A47 - furniture
A61 - medical or veterinary science
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B - performing operations
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B22 - casting
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B28 - working cement, clay, or stone
B29 - working of plastics
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B32 - layered products
B33 - additive manufacturing technology
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B43 - writing or drawing implements
B44 - decorative arts
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B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
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B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
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C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
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C10 - petroleum, gas or coke industries
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C22 - metallurgy
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C25 - electrolytic or electrophoretic processes
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D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
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E - fixed constructions
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Title: Water treatment method

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Abstract

A method for reducing the concentration of any undesirable metals dissolved in contaminated water, such as waste water. The method involves uniformly reacting the contaminated water with an excess amount of solid particulate calcium sulfite to insolubilize the undesirable metal ions, followed by removal thereof and of the unreacted calcium sulfite.

Inventors:

Martin, Frank S ^[1]; Silver, Gary L ^[2]

Farmersville, OH
Centerville, OH

Issue Date:: Tue Apr 30 00:00:00 EDT 1991

Research Org.:: MONSANTO RESEARCH CORP

OSTI Identifier:: 867793

Patent Number(s):: 5011610

Application Number:: 07/473,794

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

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

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C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/281 - {using inorganic sorbents}
C02F1/5236 - {using inorganic agents}
C02F1/70 - by reduction {

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S210/912 - Heavy metal

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DOE Contract Number:: AC04-76DP00053

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: water; treatment; method; reducing; concentration; undesirable; metals; dissolved; contaminated; waste; involves; uniformly; reacting; excess; amount; solid; particulate; calcium; sulfite; insolubilize; metal; followed; removal; unreacted; treatment method; water treatment; contaminated water; solid particulate; waste water; method involves; metals dissolved; particulate calcium; method involve; excess amount; undesirable metal; /210/

Citation Formats


                    Martin, Frank S, and Silver, Gary L. Water treatment method.  United States: N. p., 1991. 
        Web.

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                    Martin, Frank S, & Silver, Gary L. Water treatment method.  United States.

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                    Martin, Frank S, and Silver, Gary L. Tue .  
        "Water treatment method".  United States.  https://www.osti.gov/servlets/purl/867793.

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@article{osti_867793,

  title        = {Water treatment method},

  author       = {Martin, Frank S and Silver, Gary L},

  abstractNote = {A method for reducing the concentration of any undesirable metals dissolved in contaminated water, such as waste water. The method involves uniformly reacting the contaminated water with an excess amount of solid particulate calcium sulfite to insolubilize the undesirable metal ions, followed by removal thereof and of the unreacted calcium sulfite.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Apr 30 00:00:00 EDT 1991},

  month        = {Tue Apr 30 00:00:00 EDT 1991}

}

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