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1. WO2016144716 - FILTER BED BACKWASH SYSTEM AND PROCESS WITH RECYCLED GAS

Publication Number WO/2016/144716
Publication Date 15.09.2016
International Application No. PCT/US2016/020801
International Filing Date 04.03.2016
IPC
B01D 24/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
24Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
B01D 15/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
15Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
B01D 17/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
17Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
02Separation of non-miscible liquids
B01D 39/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
39Filtering material for liquid or gaseous fluids
14Other self-supporting filtering material
16of organic material, e.g. synthetic fibres
18the material being cellulose or derivatives thereof
C02F 1/40 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
40Devices for separating or removing fatty or oily substances or similar floating material
B01D 17/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
17Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
02Separation of non-miscible liquids
04Breaking emulsions
CPC
B01D 17/0202
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
17Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
02Separation of non-miscible liquids
0202by ab- or adsorption
B01D 17/045
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
17Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
02Separation of non-miscible liquids
04Breaking emulsions
045with coalescers
B01D 19/0094
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
19Degasification of liquids
0073by a method not covered by groups B01D19/0005 - B01D19/0042
0094by using a vortex, cavitation
B01D 2239/0275
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2239Aspects relating to filtering material for liquid or gaseous fluids
02Types of fibres, filaments or particles, self-supporting or supported materials
0275comprising biologically produced plastics, e.g. bioplastics
B01D 24/4631
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
24Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
46Regenerating the filtering material in the filter
4631Counter-current flushing, e.g. by air
B01D 24/4652
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
24Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
46Regenerating the filtering material in the filter
4631Counter-current flushing, e.g. by air
4652by using gasbumps
Applicants
  • SIEMENS ENERGY, INC. [US]/[US]
Inventors
  • FELCH, Chad L.
  • MUNSON, Stuart J.
Agents
  • SCOTT, Mark W.
Priority Data
62/132,09712.03.2015US
62/133,11713.03.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FILTER BED BACKWASH SYSTEM AND PROCESS WITH RECYCLED GAS
(FR) SYSTÈME ET PROCÉDÉ DE LAVAGE À CONTRE-COURANT DE LIT DE FILTRATION AVEC DU GAZ RECYCLÉ
Abstract
(EN)
According to various aspects and embodiments, a system (100) and method (200) for recycling gas in a backwash process is provided. The backwash process (200) may comprise removing contaminants from a bed of filtration media (160) in a water treatment process. The method (200) may comprise generating (202) a mixed liquid-gas stream (140) from the backwash process, withdrawing (204) the mixed liquid-gas stream (140) from the backwash process, separating (206) the mixed liquid-gas stream (140) into a liquid (150) and a gas (145), and recycling at least a portion of the separated gas (145) to the water treatment device (105).
(FR)
Différents aspects et modes de réalisation de la présente invention concernent un système (100) et un procédé (200) pour recycler un gaz dans un procédé de lavage à contre-courant. Le procédé de lavage à contre-courant (200) peut comprendre l’élimination de contaminants à partir d’un lit de milieu de filtration (160) dans un procédé de traitement de l’eau. Le procédé (200) peut comprendre la génération (202) d’un flux de liquide-gaz mixte (140) à partir du procédé de lavage à contre-courant, le retrait (204) du flux de liquide-gaz mixte (140) provenant du procédé de lavage à contre-courant, la séparation (206) du flux de liquide-gaz mixte (140) en un liquide (150) et un gaz (145), et le recyclage d’au moins une partie du gaz séparé (145) vers le dispositif de traitement de l’eau (105).
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