Method for treating water by advanced oxidation and ballasted flocculation, and corresponding treatment plant
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United States of America Patent
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Mar 4, 2014
Issued Date -
N/A
app pub date -
Nov 27, 2008
filing date -
Dec 20, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a method for treating water charged with colloidal impurities, either dissolved or suspended, in a treatment plant, wherein said method comprises: the step of contacting said water, in an advanced oxidation area, with hydrogen peroxide in the presence of at least one transition-metal salt; a flocculation step that comprises contacting said water, in a flocculation area, with at least one flocculation additive and with at least one ballast comprising at least one non-soluble granular material denser than water and used as a biomass carrier; the step of feeding the water and floc mixture thus obtained into a settling area; the step of separating the treated water at the upper portion of said settling area from a mixture of sludge and ballast resulting from the settling of said flocs; the step of extracting the sludge and ballast mixture at the lower portion of said settling area; and the step of recycling at least a portion of the sludge into said advanced oxidation area.

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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT | 94417 SAINT-MAURICE |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bucaille, Arnaud | Hong Kong, HK | 3 | 1 |
Coste, Marielle | Paris, FR | 1 | 1 |
Logette, Sebastien | Taverny, FR | 5 | 2 |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 4, 2025 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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