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1. WO2018148542 - BRINE DISPERSAL SYSTEM

Publication Number WO/2018/148542
Publication Date 16.08.2018
International Application No. PCT/US2018/017618
International Filing Date 09.02.2018
IPC
C02F 1/44 2006.1
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
44by dialysis, osmosis or reverse osmosis
B01D 61/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02Reverse osmosis; Hyperfiltration
B01D 61/08 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02Reverse osmosis; Hyperfiltration
08Apparatus therefor
B01F 3/04 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
3Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
04gases or vapours with liquids
E02B 1/00 2006.1
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
BHYDRAULIC ENGINEERING
1Equipment or apparatus for, or methods of, general hydraulic engineering
CPC
B01D 2311/04
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2311Details relating to membrane separation process operations and control
04Specific process operations in the feed stream; Feed pretreatment
B01D 2311/08
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2311Details relating to membrane separation process operations and control
08Specific process operations in the concentrate stream
B01D 2311/20
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2311Details relating to membrane separation process operations and control
20Power consumption
B01D 2311/2661
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2311Details relating to membrane separation process operations and control
26Further operations combined with membrane separation precesses
2661Addition of gas
B01D 2313/12
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2313Details relating to membrane modules or apparatus
12Specific discharge elements
B01D 2313/24
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2313Details relating to membrane modules or apparatus
24Specific pressurizing or depressurizing means
Applicants
  • BERGSTROM, Robert, A. [US]/[US]
Inventors
  • BERGSTROM, Robert, A.
Agents
  • CLEVELAND, David, R.
Priority Data
62/457,03409.02.2017US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) BRINE DISPERSAL SYSTEM
(FR) SYSTÈME DE DISPERSION DE SAUMURE
Abstract
(EN) A desalination brine dispersal apparatus and method employ airlift to remove, oxygenate and disperse brine from a desalination apparatus. The apparatus includes a brine removal conduit having a brine inlet that receives brine from the desalination apparatus, a plurality of brine outlets submerged in seawater and one or more air introduction points located at depths below the brine outlets. The supplied air oxygenates and moves brine through the brine removal conduit and outlets via airlift and disperses the brine into seawater away from the brine removal conduit. The apparatus avoids the formation of concentrated, high shear brine plumes and can disperse brine into seawater over a wide area well away from the brine removal conduit.
(FR) Cette invention concerne un appareil et un procédé de dispersion de saumure de dessalement utilisant de l'air comprimé pour éliminer, oxygéner et disperser la saumure provenant d'un appareil de dessalement. L'appareil comprend un conduit d'élimination de saumure comportant une admission de saumure qui reçoit la saumure provenant de l'appareil de dessalement, une pluralité d'évacuations de saumure immergées dans l'eau de mer et un ou plusieurs points d'introduction d'air à des profondeurs situées au-dessous des évacuations de saumure. L'air introduit oxygène et déplace la saumure dans le conduit d'élimination de saumure et les évacuations et disperse la saumure dans l'eau de mer, à distance du conduit d'élimination de saumure. L'appareil évite la formation de panaches de saumure concentrés, à cisaillement élevé et permet de disperser la saumure dans l'eau de mer sur une large zone, à grande distance du conduit d'élimination de saumure.
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