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1. WO2007096679 - SYSTEM FOR ENERGY RECOVERY AND REDUCTION OF DEPOSITS ON THE MEMBRANE SURFACES IN (VARIABLE POWER AND VARIABLE PRODUCTION) REVERSE OSMOSIS DESALINATION SYSTEMS

Publication Number WO/2007/096679
Publication Date 30.08.2007
International Application No. PCT/GR2007/000012
International Filing Date 26.02.2007
IPC
C02F 1/44 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
44by dialysis, osmosis or reverse osmosis
B01D 61/02 2006.01
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 61/06 2006.01
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
06Energy recovery
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
CPC
B01D 2313/246
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2313Details relating to membrane modules or apparatus
24Specific pressurizing or depressurizing means
246Energy recovery means
B01D 2313/50
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2313Details relating to membrane modules or apparatus
50Specific extra reservoirs
B01D 61/025
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02Reverse osmosis; Hyperfiltration ; ; Nanofiltration
025Reverse osmosis; Hyperfiltration
B01D 61/06
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02Reverse osmosis; Hyperfiltration ; ; Nanofiltration
06Energy recovery
C02F 1/441
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
441by reverse osmosis
C02F 2103/08
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
2103Nature of the water, waste water, sewage or sludge to be treated
08Seawater, e.g. for desalination
Applicants
  • LILAS, Theodoros [GR]/[GR]
  • ANTONIOU, Evanthia [GR]/[GR]
  • VATISTAS, Athanasios [GR]/[GR]
  • LILA, Konstantina [GR]/[GR]
  • MAGLARA, Artemis [GR]/[GR]
  • NIKHTAKOS, Nikitas [GR]/[GR]
  • SYRSELOUDIS, Christos [GR]/[GR]
Inventors
  • LILAS, Theodoros
  • ANTONIOU, Evanthia
  • VATISTAS, Athanasios
  • LILA, Konstantina
  • MAGLARA, Artemis
  • NIKHTAKOS, Nikitas
  • SYRSELOUDIS, Christos
Priority Data
2006010012224.02.2006GR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM FOR ENERGY RECOVERY AND REDUCTION OF DEPOSITS ON THE MEMBRANE SURFACES IN (VARIABLE POWER AND VARIABLE PRODUCTION) REVERSE OSMOSIS DESALINATION SYSTEMS
(FR) SYSTÈME POUR RÉCUPÉRER L'ÉNERGIE ET RÉDUIRE LES DÉPÔTS SUR LES SURFACES DE MEMBRANES DANS DES SYSTÈMES DE DESSALEMENT PAR OSMOSE INVERSE (À PUISSANCE VARIABLE ET PRODUCTION VARIABLE)
Abstract
(EN)
A method and a device for desalination, that operates with reverse osmosis membranes (7) and pressure vessels (9) and (20) that are connected to the high pressure circuit via valves (17) and with the low pressure circuit via valves (10). The proposed system includes the operation of a water intake pump (2) and high pressure pump (5) and a circulating pump, when vessel (9) is connected to the high pressure circuit, vessel (20) is fed with fresh salty water in the low pressure, next vessel (20) is connected to the high pressure, vessel (9) is disconnected, then vessel (9) is rinsed, vessel (9) becomes complete with salty water in the low pressure, then vessel (9) is connected in the high pressure, next vessel (20) disconnected, vessel (20) is rinsed, vessel (20) becomes complete with fresh salty water in the low pressure. The process is repeated with alternation of vessels (9) and (20).
(FR)
L'invention concerne un procédé et un dispositif de dessalement utilisant des membranes (7) d'osmose inverse et des cuves sous pression (9 et 20), reliées au circuit haute pression par l'intermédiaire de vannes (17) et au circuit basse pression par l'intermédiaire d'autres vannes (10). Le système consiste à: actionner une pompe (2) d'admission d'eau, une pompe (5) haute pression et une pompe de circulation; quand la cuve (9) est reliée au circuit haute pression, alimenter la cuve (20) en eau salée propre à basse pression; puis relier la cuve (20) au circuit haute pression, débrancher la cuve (9), puis rincer la cuve (9); remplir la cuve (9) d'eau salée à basse pression, puis relier la cuve (9) au circuit haute pression, débrancher ensuite la cuve (20), rincer la cuve (20) puis la remplir d'eau salée propre à basse pression. Le procédé est répété avec alternance des cuves (9) et (20).
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