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1. WO2013003012 - IMPROVED DISSOLVED AIR FLOTATION SYSTEM AND METHOD

Publication Number WO/2013/003012
Publication Date 03.01.2013
International Application No. PCT/US2012/041815
International Filing Date 11.06.2012
IPC
C02F 103/08 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
103Nature of the water, waste water, sewage or sludge to be treated
08Seawater, e.g. for desalination
C02F 1/24 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
24by flotation
CPC
B01D 21/0045
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
0039Settling tanks provided with contact surfaces, e.g. baffles, particles
0045Plurality of essentially parallel plates
B01D 21/0051
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
0039Settling tanks provided with contact surfaces, e.g. baffles, particles
0051Plurality of tube like channels
B03D 1/1412
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
14Flotation machines
1412with baffles, e.g. at the wall for redirecting settling solids
B03D 1/1431
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
14Flotation machines
1431Dissolved air flotation machines
B03D 1/1456
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
14Flotation machines
1443Feed or discharge mechanisms for flotation tanks
1456Feed mechanisms for the slurry
B03D 1/1462
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
14Flotation machines
1443Feed or discharge mechanisms for flotation tanks
1462Discharge mechanisms for the froth
Applicants
  • SIEMENS PTE. LTD. [SG]/[SG] (AllExceptUS)
  • WIKRAMANAYAKE, Rohan [US]/[SG] (UsOnly)
  • SREERAMACHANDRAN, Sunand [IN]/[SG] (UsOnly)
  • RAJENDRAN, Rajeshkumar [IN]/[SG] (UsOnly)
  • GALVAN, Anthony Guadalupe [US]/[US] (UsOnly)
  • SHANMUGAM, Kathirvel [IN]/[SG] (UsOnly)
  • LAU, Hui Huat [MY]/[SG] (UsOnly)
Inventors
  • WIKRAMANAYAKE, Rohan
  • SREERAMACHANDRAN, Sunand
  • RAJENDRAN, Rajeshkumar
  • GALVAN, Anthony Guadalupe
  • SHANMUGAM, Kathirvel
  • LAU, Hui Huat
Agents
  • WILKINS, Frederick C.
Priority Data
61/502,46129.06.2011US
61/625,23317.04.2012US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED DISSOLVED AIR FLOTATION SYSTEM AND METHOD
(FR) SYSTÈME ET PROCÉDÉ DE FLOTTATION À L'AIR DISSOUS AMÉLIORÉS
Abstract
(EN)
Aspects and embodiments of the present invention are directed towards systems and methods for water treatment. In accordance with some embodiments, a water treatment system comprising an air dissolving pump, a relaxation pipe, and a dissolved air flotation unit may advantageously remove dissolved and suspended contaminants from a treatment water. Aspects and embodiments of the present invention may be used in seawater desalination.
(FR)
Les aspects et les modes de réalisation de la présente invention se rapportent à des systèmes et à des procédés pour le traitement de l'eau. Selon certains modes de réalisation, un système de traitement de l'eau qui comprend une pompe de dissolution d'air, un tuyau de relâchement ainsi qu'une unité de flottation à l'air dissous peut éliminer avantageusement des contaminants dissous et en suspension dans une eau faisant l'objet d'un traitement. Les aspects et les modes de réalisation de la présente invention peuvent s'appliquer au dessalement de l'eau de mer.
Also published as
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