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NZ795943B2 - Systems and Methods for Removing Volatile Compounds from Water-Storage Tanks - Google Patents
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NZ795943B2 - Systems and Methods for Removing Volatile Compounds from Water-Storage Tanks - Google Patents

Systems and Methods for Removing Volatile Compounds from Water-Storage Tanks Download PDF

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Publication number
NZ795943B2
NZ795943B2 NZ795943A NZ79594317A NZ795943B2 NZ 795943 B2 NZ795943 B2 NZ 795943B2 NZ 795943 A NZ795943 A NZ 795943A NZ 79594317 A NZ79594317 A NZ 79594317A NZ 795943 B2 NZ795943 B2 NZ 795943B2
Authority
NZ
New Zealand
Prior art keywords
water
air
tank
storage tank
conveyance device
Prior art date
Application number
NZ795943A
Other versions
NZ795943A (en
Inventor
Ethan Brooke
Peter Fiske
Robin Giguere
Original Assignee
Pax Water Technologies Inc
Filing date
Publication date
Application filed by Pax Water Technologies Inc filed Critical Pax Water Technologies Inc
Publication of NZ795943A publication Critical patent/NZ795943A/en
Publication of NZ795943B2 publication Critical patent/NZ795943B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0005—Degasification of liquids with one or more auxiliary substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/101—Sulfur compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/12—Halogens or halogen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/32—Hydrocarbons, e.g. oil
    • C02F2101/322—Volatile compounds, e.g. benzene
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/36—Organic compounds containing halogen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/06—Contaminated groundwater or leachate
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
    • E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
    • E03B11/08—Air regulators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

system for reducing an amount of volatile organic compounds comprising: a water-storage tank comprising a tank containing water, a roof positioned over the tank, and a headspace region formed between the roof and a surface of the water contained in the tank; an air exchange system positioned at least partially in the headspace region that is configured to exchange air exterior to the tank with air inside the tank; and a water conveyance device located at least partially in the water of the water-storage tank and which is configured to convey water in a manner that produces a surface flow velocity, wherein the air exchange system comprises an active air ventilation device configured to facilitate the movement of air exterior of the water-storage tank directly into the headspace region above the surface of the water, and wherein the active air ventilation device comprises a deflector that deflects the air exterior of the water-storage tank entering the headspace region in a direction that is non-perpendicular to the water surface.

Claims (14)

THE INVENTION CLAIMED IS
1. A system for reducing an amount of volatile c compounds comprising: a water-storage tank comprising a tank containing water, a roof positioned over the tank, and a headspace region formed between the roof and a surface of the water ned in the tank; an air exchange system positioned at least partially in the headspace region that is configured to exchange air exterior to the tank with air inside the tank; and a water conveyance device located at least partially in the water of the water-storage tank and which is configured to convey water in a manner that produces a surface flow velocity, wherein the air exchange system comprises an active air ation device configured to facilitate the movement of air exterior of the water-storage tank directly into the headspace region above the surface of the water, and wherein the active air ventilation device comprises a deflector that deflects the air or of the water-storage tank entering the headspace region in a direction that is non-perpendicular to the water surface.
2. The system of claim 1, wherein the water conveyance device is configured to convey water to the water surface.
3. The system of claim 1, wherein the tank has a floor and the water conveyance device is configured to exchange water at or toward the floor of the tank with water at or toward the water surface.
4. The system of claim 3, wherein the water conveyance device circulates water around the tank.
5. The system of claim 1, wherein the water conveyance device is completely submerged in the water when the tank is in use.
6. The system of claim 5, wherein the water conveyance device is attached to or sits upon the floor of the tank.
7. The system of claim 1, wherein the air exchange system comprises a port that enables air to flow out of the storage tank.
8. The system of claim 1, wherein the active air ventilation device is configured to tate the movement of air exterior of the water-storage tank into the headspace region substantially across the water surface.
9. The system of claim 1, wherein the active air ation device comprises air vents that fluidly connect the air exterior of the water-storage tank to the ace region.
10. The system of claim 9, n the active air ventilation device comprises at least one screen that is positioned over at least one of the air vents.
11. The system of claim 1, wherein the active air ventilation device comprises an air moving device.
12. The system of claim 11, wherein the air moving device is a fan.
13. The system of claim 1, wherein the water conveyance device comprises a mixer having blades.
14. The system of claim 11, wherein the deflector is in fluid ication with the air moving device. HG. "E
NZ795943A 2017-12-29 Systems and Methods for Removing Volatile Compounds from Water-Storage Tanks NZ795943B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662441208P 2016-12-31 2016-12-31
NZ754900A NZ754900B2 (en) 2017-12-29 Systems and methods for removing volatile compounds from water-storage tanks

Publications (2)

Publication Number Publication Date
NZ795943A NZ795943A (en) 2024-11-29
NZ795943B2 true NZ795943B2 (en) 2025-03-04

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