ITTO950974A1 - PROCEDURE AND DEVICE FOR WATER PURIFICATION. - Google Patents
PROCEDURE AND DEVICE FOR WATER PURIFICATION. Download PDFInfo
- Publication number
- ITTO950974A1 ITTO950974A1 IT95TO000974A ITTO950974A ITTO950974A1 IT TO950974 A1 ITTO950974 A1 IT TO950974A1 IT 95TO000974 A IT95TO000974 A IT 95TO000974A IT TO950974 A ITTO950974 A IT TO950974A IT TO950974 A1 ITTO950974 A1 IT TO950974A1
- Authority
- IT
- Italy
- Prior art keywords
- water
- heat exchanger
- steam
- liquid phase
- concentrated liquid
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000000746 purification Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 9
- 239000007791 liquid phase Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 230000009466 transformation Effects 0.000 claims abstract description 5
- 238000009833 condensation Methods 0.000 claims abstract 2
- 230000005494 condensation Effects 0.000 claims abstract 2
- 239000012141 concentrate Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims 2
- 230000008020 evaporation Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 claims 1
- 230000000977 initiatory effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
- B01D1/12—Evaporators with vertical tubes and forced circulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/28—Evaporating with vapour compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
- B01D1/305—Demister (vapour-liquid separation)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
- B01D5/009—Collecting, removing and/or treatment of the condensate
-
- 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
- Y02A20/124—Water desalination
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
L'acqua da depurare viene inviata in un evaporatore (10) provocandone il riscaldamento con trasformazione almeno parziale in vapore e conseguente concentrazione della fase liquida. Il vapore viene quindi compresso (13) ed inviato ad uno scambiatore di calore (9), in modo da cedere il suo calore latente all'acqua in ingresso con conseguente condensazione del vapore stesso. La fase liquida concentrata (30) ed il vapore condensato (20) vengono prelevati (25, 19) in vista del successivo riutilizzo.(fig. 1).The water to be purified is sent to an evaporator (10) causing its heating with at least partial transformation into steam and consequent concentration of the liquid phase. The steam is then compressed (13) and sent to a heat exchanger (9), so as to transfer its latent heat to the incoming water with consequent condensation of the steam itself. The concentrated liquid phase (30) and the condensed steam (20) are taken (25, 19) in view of the subsequent reuse (fig. 1).
Description
DESCRIZIONE dell’invenzione industriale dal titolo: "Procedimento e dispositivo per la depurazione delle acque” DESCRIPTION of the industrial invention entitled: "Process and device for water purification"
La presente invenzione si riferisce in generale alla depurazione delle acque ed in particolare si riferisce alla depurazione di acqua contenuta nei percolati derivanti dai rifiuti solidi urbani, alla desai inazione dell’acqua marina o delle acque derivanti da lavorazioni industriali. The present invention generally refers to the purification of water and in particular it refers to the purification of water contained in the leachate deriving from solid urban waste, to the desalination of sea water or water deriving from industrial processes.
La presente invenzione si prefigge lo scopo di fornire mezzi che consentano la depurazione delle acque suddette a basso costo e con elevata efficienza . The present invention has the purpose of providing means that allow the purification of the above water at low cost and with high efficiency.
La presente invenzione fornisce tali mezzi, grazie ad un procedimento e ad un dispositivo aventi le caratteristiche richiamate in modo specifico nelle rivendicazioni che seguono. The present invention provides such means, thanks to a method and a device having the characteristics referred to specifically in the following claims.
L’invenzione consente di ottenere, a partire dalle acque da trattare, un concentrato ed un distillato suscettibili di essere riutilizzati in modo vantaggioso. Il concentrato può essere facilmente trattato, mentre il distillato può essere scaricato nelle acque superficiali dopo un semplice trattamento attraverso un filtro a carboni attivi o altro semplice post-trattamento chimico-fisico o biologico . The invention allows to obtain, starting from the water to be treated, a concentrate and a distillate which can be reused in an advantageous way. The concentrate can be easily treated, while the distillate can be discharged into surface water after a simple treatment through an activated carbon filter or other simple chemical-physical or biological post-treatment.
Ulteriori caratteristiche e vantaggi della presente invenzione risulteranno evidenti nel corso della descrizione dettagliata che segue, data a puro titolo di esempio non limitativo, con riferimento ai disegni annessi, in cui: Further characteristics and advantages of the present invention will become evident in the course of the detailed description which follows, given purely by way of non-limiting example, with reference to the attached drawings, in which:
la fig.l è una vista schematica di una struttura di un dispositivo per la depurazione delle acque secondo l'invenzione, e Fig. 1 is a schematic view of a structure of a device for water purification according to the invention, and
la fig.2 è una vista di un particolare ingrandito indicato con II della fig.l. Fig. 2 is a view of an enlarged detail indicated with II of Fig.
Facendo riferimento alle figg.l e 2, l'acqua da trattare viene inviata ad un filtro autopulente 1, destinato a rimuovere dall'acqua stessa eventuali parti solide grossolane. With reference to Figures 1 and 2, the water to be treated is sent to a self-cleaning filter 1, designed to remove any coarse solid parts from the water itself.
L’acqua che esce dal filtro 1 viene inviata, tramite pompe 2 e 3, ad un primo ed un secondo scambiatore di calore 4 e 5, che hanno la funzione di pre-r iscaldarla in vista dell'introduzione nel circuito principale del dispositivo. L'acqua si trova quindi a percorrere i lati freddi degli scambiatori di calore 4 e 5, i cui lati caldi vengono attraversati, come si vedrà nel seguito, rispettivamente dalla condensa e dal concentrato prodotti dalla depurazione. Gli scambiatori di calore 4 e 5 sono costituiti di solito da scambiatori a piastre. The water that comes out of the filter 1 is sent, through pumps 2 and 3, to a first and a second heat exchanger 4 and 5, which have the function of pre-heating it in view of the introduction into the main circuit of the device. The water then passes through the cold sides of the heat exchangers 4 and 5, the hot sides of which are crossed, as will be seen below, by the condensate and the concentrate produced by the purification respectively. Heat exchangers 4 and 5 usually consist of plate exchangers.
L'acqua da trattare pre-riscaldata viene immessa, tramite una tubazione 7, in un'ulteriore tubazione 8, la cui funzione verrà spiegata nel seguito. The pre-heated water to be treated is introduced, through a pipe 7, into a further pipe 8, the function of which will be explained below.
La tubazione 8 collega la parte superiore di uno scambiatore di calore 9 con una camera (duomo) 10, in cui si completa la trasformazione, almeno parziale, dell'acqua da trattare con la formazione di una fase liquida condensata. Lo scambiatore di calore 9 può essere convenientemente del tipo a piastre . The pipe 8 connects the upper part of a heat exchanger 9 with a chamber (dome) 10, in which the transformation, at least partial, of the water to be treated is completed with the formation of a condensed liquid phase. The heat exchanger 9 can conveniently be of the plate type.
La tubazione 8 adduce quindi alla camera 10 sia l'acqua da trattare pre-riscaldata , sia una frazione di concentrato proveniente dallo scambiatore di calore 9, come verrà chiarito nel seguito. La miscela di cui sopra fuoriesce dalla tubazione 8 nella camera 10 con eventuale formazione di bolle. Superiormente alla bocca di uscita della tubazione 8, è però previsto uno schermo deflettore 11 che viene investito da flusso in uscita dalla tubazione 8, in modo da creare una barriera liquida alle eventuali schiume . The pipe 8 then conveys to the chamber 10 both the pre-heated water to be treated and a fraction of concentrate coming from the heat exchanger 9, as will be clarified below. The above mixture comes out of the pipe 8 into the chamber 10 with possible formation of bubbles. Above the outlet of the pipe 8, however, a deflector screen 11 is provided which is hit by the flow coming out of the pipe 8, so as to create a liquid barrier to any foams.
La soluzione di utilizzare uno schermo per evitare la formazione di schiume è da ritenersi di per sé nota; è stato però riscontrato che la previsione di uno schermo 11 avente uno sviluppo generalmente arcuato (vedere fig.2), disposto a guisa di tettoia al disopra della bocca di uscita della tubazione 8 si dimostra preferenziale ai fini dell'attuazione dell’ invenzione . The solution of using a screen to avoid the formation of foams is to be considered per se known; however, it was found that the provision of a screen 11 having a generally arcuate development (see fig. 2), arranged as a canopy above the outlet of the pipe 8 proves to be preferential for the purposes of implementing the invention.
La fase vapore formata all’interno della camera 10 tende a fuoriuscire dall'estremità superiore della camera 10 stessa, in corrispondenza della quale è collegato un elemento denebulizzante (demister) 12, anch’esso di tipo noto. La funzione dell'elemento 12 è quello di evitare che il vapore che fuoriesce dalla camera 10 trascini con sé particelle di liquido verso uno stadio di compressione destinato a realizzare una compressione meccanica del vapore, innalzandone la temperatura. The vapor phase formed inside the chamber 10 tends to come out from the upper end of the chamber 10 itself, in correspondence with which a de-boiling element (demister) 12, also of a known type, is connected. The function of the element 12 is to prevent the vapor that comes out of the chamber 10 from dragging particles of liquid with it towards a compression stage intended to achieve a mechanical compression of the vapor, raising its temperature.
Nell’esempio di attuazione illustrato, che si è dimostrato particolarmente vantaggioso nella pratica, lo stadio in questione comprende un compressore 13, che può essere volumentrico a lobi, oppure a canale laterale, o infine centrifugo a seconda delle portate in gioco e delle caratteristiche del fluido trattato nell'impianto. In the embodiment illustrated, which has proved to be particularly advantageous in practice, the stage in question comprises a compressor 13, which can be volumetric with lobes, or with side channel, or finally centrifugal depending on the flow rates involved and the characteristics of the fluid treated in the system.
Per effetto del passaggio nel compressore 13, la temperatura del vapore viene portata ad un valore dell’ordine di 115-130°C e perviene, tramite condotti 14 e 15, al lato caldo dello scambiatore di calore 9. As a result of the passage in the compressor 13, the temperature of the steam is brought to a value of the order of 115-130 ° C and reaches, through ducts 14 and 15, the hot side of the heat exchanger 9.
Per effetto del passaggio attraverso lo scambiatore di calore 9, il vapore compresso dalla pompa 13 cede all'acqua che circola sul lato freddo il suo calore latente, condensandosi. La condensa viene scaricata in un dispositivo scaricatore 18 per essere inviata, tramite una pompa 19, verso la linea di uscita del distillato 20, dopo aver attraversato il lato caldo dello scambiatore di calore 4. Nello scambiatore di calore 4, la condensa che fuoriesce dallo scaricatore 18, cede il suo calore sensibile all'acqua pompata dalla pompa 2, favorendone il preriscaldamento prima dell'introduzione nella tubazione 7, secondo i criteri già descritti in precedenza. As a result of the passage through the heat exchanger 9, the steam compressed by the pump 13 releases its latent heat to the water circulating on the cold side, condensing. The condensate is discharged into a drain device 18 to be sent, by means of a pump 19, towards the distillate outlet line 20, after having passed through the hot side of the heat exchanger 4. In the heat exchanger 4, the condensate that comes out of the discharger 18, transfers its sensitive heat to the water pumped by the pump 2, favoring its preheating before introduction into the pipe 7, according to the criteria already described previously.
Una frazione della condensa viene trattenuta in un serbatoio ausiliario (non rappresentato) per consentire l’avviamento dell’impianto, così come verrà meglio descritto nel seguito. A fraction of the condensate is retained in an auxiliary tank (not shown) to allow the system to start up, as will be better described below.
La fase liquida concentrata che si raccoglie nella parte bassa della camera 10, fuoriesce da questa tramite un condotto 21 che, diramandosi in due condotti 22 e 23, viene inviata in parte rispettivamente, tramite una pompa 16 ed un condotto 24, allo scambiatore di calore 9 ed in parte, tramite una pompa 25, verso il lato caldo dello scambiatore di calore 5. La pompa 25 è suscettibile di prelevare selettivamente (ossia con portata determinata) il prodotto concentrato di depurazione. The concentrated liquid phase which collects in the lower part of the chamber 10, exits from this through a conduit 21 which, branching off into two conduits 22 and 23, is sent in part respectively, by means of a pump 16 and a conduit 24, to the heat exchanger. 9 and partly, by means of a pump 25, towards the hot side of the heat exchanger 5. The pump 25 is capable of selectively withdrawing (ie with a determined flow rate) the concentrated purification product.
In parallelo ai condotti 22 e 24, è disposto un ulteriore condotto 27 munito di un rifrattometro 29, che controlla con continuità la concentrazione del prodotto in lavorazione. Il rifrattometro 29 controlla, mediante mezzi noti e non rappresentati per semplicità, la portata delle pompe 25 e 3, assicurando uno scarico modulato del concentrato ed un recupero ottimale di calore per il prodotto entrante. Il grado di concentrazione voluto è regolabile, l’estrazione del concentrato inizia solo quando viene superato un valore di concentrazione pre-impostato . In parallel to the ducts 22 and 24, a further duct 27 is arranged, equipped with a refractometer 29, which continuously monitors the concentration of the product being processed. The refractometer 29 controls, by means of known means and not shown for simplicity, the flow rate of the pumps 25 and 3, ensuring a modulated discharge of the concentrate and an optimal heat recovery for the incoming product. The desired degree of concentration is adjustable, the extraction of the concentrate starts only when a pre-set concentration value is exceeded.
Il concentrato spillato dalla pompa 25 passa nel lato caldo dello scambiatore di calore 5 e viene inviato nella zona di raccolta 30. Per l'avviamento dell'impianto a freddo, fino a portarlo a temperatura di lavoro (oltre i 100°C), può venire utilmente impiegata una piccola caldaia del tipo istantaneo a serpentino 40 che invia vapore, ad esempio acqua surriscaldata, a monte dello scambiatore di calore 9. Il bruciatore della caldaia 40 può ad esempio essere alimentato a gasolio. Il vapore viene prodotto con una piccola parte dell’acqua distillata generata, la caldaia si disattiva al raggiungimento della temperatura di regime. L'impianto nel suo complesso può essere controllato da un computer ed è quindi completamente automatizzato. The concentrate tapped by the pump 25 passes into the hot side of the heat exchanger 5 and is sent to the collection area 30. For cold start-up of the system, up to bringing it to working temperature (over 100 ° C), it can usefully a small boiler of the instantaneous serpentine type 40 which sends steam, for example superheated water, upstream of the heat exchanger 9. The burner of the boiler 40 can for example be supplied with diesel oil. The steam is produced with a small part of the distilled water generated, the boiler is deactivated when the operating temperature is reached. The plant as a whole can be controlled by a computer and is therefore fully automated.
Naturalmente, fermo restando il principio dell'invenzione, le forme di attuazione ed i particolari di costruzioni potranno essere ampiamente variati, senza per questo uscire dall’ambito della presente invenzione. Naturally, without prejudice to the principle of the invention, the embodiments and construction details may be widely varied, without thereby departing from the scope of the present invention.
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT95TO000974A IT1281057B1 (en) | 1995-12-06 | 1995-12-06 | PROCEDURE AND DEVICE FOR WATER PURIFICATION. |
| AU11751/97A AU1175197A (en) | 1995-12-06 | 1996-12-04 | A method and a device for purifying water |
| PCT/EP1996/005385 WO1997020606A1 (en) | 1995-12-06 | 1996-12-04 | A method and a device for purifying water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT95TO000974A IT1281057B1 (en) | 1995-12-06 | 1995-12-06 | PROCEDURE AND DEVICE FOR WATER PURIFICATION. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITTO950974A0 ITTO950974A0 (en) | 1995-12-06 |
| ITTO950974A1 true ITTO950974A1 (en) | 1997-06-06 |
| IT1281057B1 IT1281057B1 (en) | 1998-02-11 |
Family
ID=11414005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT95TO000974A IT1281057B1 (en) | 1995-12-06 | 1995-12-06 | PROCEDURE AND DEVICE FOR WATER PURIFICATION. |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU1175197A (en) |
| IT (1) | IT1281057B1 (en) |
| WO (1) | WO1997020606A1 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2223922C (en) * | 1997-12-05 | 2006-09-05 | Inland Technologies Inc. | Method and apparatus for removing water from aqueous fluid mixture |
| US5928477A (en) * | 1998-01-07 | 1999-07-27 | Inland Technologies Inc. | Method and apparatus for removing water from an aqueous fluid mixture |
| JP3448201B2 (en) * | 1998-01-28 | 2003-09-22 | 三菱重工業株式会社 | Wastewater evaporative concentrator |
| ATE281222T1 (en) * | 1998-10-23 | 2004-11-15 | Bionorica Ag | VACUUM DISTILLATION SYSTEM AND USE OF THE SAME FOR CONCENTRATION OF ORGANIC-AQUEOUS SOLVENT MIXTURES |
| DE19905323C2 (en) * | 1998-10-23 | 2000-09-14 | Bionorica Arzneimittel Gmbh | Vacuum distillation plant and use thereof for the concentration of organic-aqueous solvent mixtures |
| US7291250B1 (en) | 1999-10-20 | 2007-11-06 | Bionorica Ag | Vacuum distillation system and use thereof for concentrating organic-aqueous solvent mixtures |
| CN1321070C (en) * | 2005-02-03 | 2007-06-13 | 刘德沛 | Waste water treating method and multi-effect evaporator for propylene oxide production |
| US8505323B2 (en) | 2007-06-07 | 2013-08-13 | Deka Products Limited Partnership | Water vapor distillation apparatus, method and system |
| WO2009033209A1 (en) * | 2007-09-11 | 2009-03-19 | John Francis Urch | Distillation apparatus |
| FR2928276B1 (en) * | 2008-03-10 | 2011-01-14 | Ridel | MECHANICAL VAPOR COMPRESSION EVAPORATOR HAVING A SEPARATOR INLET RELIEF DEVICE |
| WO2010019891A2 (en) | 2008-08-15 | 2010-02-18 | Deka Products Limited Partnership | Water vending apparatus |
| US10759676B2 (en) | 2011-07-15 | 2020-09-01 | Deka Products Limited Partnership | Water vapor distillation apparatus, method and system |
| US11352267B2 (en) | 2011-07-15 | 2022-06-07 | Deka Products Limited Partnership | Water distillation apparatus, method and system |
| US20140034475A1 (en) * | 2012-04-06 | 2014-02-06 | Deka Products Limited Partnership | Water Vapor Distillation Apparatus, Method and System |
| CN103041608B (en) * | 2012-12-06 | 2015-01-07 | 温州市日中轻工机械有限公司 | Discharge flash cooling device for evaporator and use method of device |
| CN103387306A (en) * | 2013-07-30 | 2013-11-13 | 大连广泰源环保科技有限公司 | Garbage leachate processing system and processing technology thereof |
| JP7329054B2 (en) | 2018-10-15 | 2023-08-17 | デカ・プロダクツ・リミテッド・パートナーシップ | Water distillation apparatus, methods and systems |
| WO2020084630A1 (en) | 2018-10-22 | 2020-04-30 | Ethical Energy Petrochem Strategies Pvt. Ltd, | System for simultaneous recovery of purified water and dissolved solids from impure high tds water |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4551198A (en) * | 1982-03-30 | 1985-11-05 | Kamyr, Inc. | Method of flashing black liquor |
| FI68364C (en) * | 1983-09-28 | 1985-09-10 | Finn Aqua Ltd Oy | FOERFARANDE FOER ELIMINERING AV TEMPERATURVAEXLINGAR HOS EN MAARVAETSKA SOM SKALL DESTILLERAS |
| FI86961C (en) * | 1990-12-14 | 1994-08-01 | Aquamax Oy | Heat |
| DE4218451A1 (en) * | 1992-06-04 | 1993-12-09 | Transferon Waeschereimasch | Process for the preparation of contaminated higher-boiling solvents and device for carrying out the process |
-
1995
- 1995-12-06 IT IT95TO000974A patent/IT1281057B1/en active IP Right Grant
-
1996
- 1996-12-04 WO PCT/EP1996/005385 patent/WO1997020606A1/en active Application Filing
- 1996-12-04 AU AU11751/97A patent/AU1175197A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| IT1281057B1 (en) | 1998-02-11 |
| ITTO950974A0 (en) | 1995-12-06 |
| AU1175197A (en) | 1997-06-27 |
| WO1997020606A1 (en) | 1997-06-12 |
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