EP2493817A2 - Procédé permettant de faire fonctionner un système de traitement des eaux et système de traitement des eaux destiné à la réalisation de ce procédé, en particulier pour de l'eau ultra pure - Google Patents

Procédé permettant de faire fonctionner un système de traitement des eaux et système de traitement des eaux destiné à la réalisation de ce procédé, en particulier pour de l'eau ultra pure

Info

Publication number
EP2493817A2
EP2493817A2 EP10776962A EP10776962A EP2493817A2 EP 2493817 A2 EP2493817 A2 EP 2493817A2 EP 10776962 A EP10776962 A EP 10776962A EP 10776962 A EP10776962 A EP 10776962A EP 2493817 A2 EP2493817 A2 EP 2493817A2
Authority
EP
European Patent Office
Prior art keywords
ozone
water
circuit
water treatment
treatment system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10776962A
Other languages
German (de)
English (en)
Inventor
Dietmar Steudten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evoqua Water Technologies GmbH
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2493817A2 publication Critical patent/EP2493817A2/fr
Withdrawn legal-status Critical Current

Links

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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • 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
    • C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • 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
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/04—Non-contaminated water, e.g. for industrial water supply for obtaining ultra-pure water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/78—Details relating to ozone treatment devices
    • C02F2201/782—Ozone generators
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/23—O3
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/44—Time
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/18—Removal of treatment agents after treatment

Definitions

  • the invention relates to a method for operating a ⁇ What seraufleungssystems, in particular a pure or
  • Ultrapure water treatment system according to the preamble of patent claim 1 and a suitable for carrying out the method ge ⁇ suitable water treatment system according to the preamble of claim 10.
  • water to be treated usually water, to only ⁇ desalted into a reverse osmosis module, n michsmodul softened in a conditionality and then entionisert in an electrical deionization.
  • a wide ⁇ ren water treatment device for example, a device for ultraviolet (UV) oxidation of organic material in the water, a thereon includes the following Polisher module for removing organic material and reducing electrical conductivity with activated charcoal and ion exchange resin, an ultrafiltration module and a sterile filter.
  • the aufbe ⁇ prepared pure or ultrapure water can be supplied to a consumer.
  • the water treatment device Outlet and possibly other distribution facilities.
  • the UV oxidizer may comprise a UV light source that generates light having a wavelength of 185 nm and 254 nm.
  • the light with the wavelength of 185 nm generates ozone in water.
  • the light with the wavelength of 254 nm wavelength reacts with the ozone to produce hydroxyl radicals.
  • These radicals oxidize organic mate ⁇ rial in the water to carbon dioxide, water and by-products such as hydrogen peroxide. These by-products are removed by the activated carbon material contained in the polisher module and the ion exchange resin ⁇ , so that very low TOC values can be achieved LppB of ⁇ .
  • ozone is supplied to the water circulating in the circuit, or ozone is generated in the circulating water of the circuit.
  • Ozone is a much stronger Desin Stammionsmit ⁇ tel as, for example, chlorine and does not leave chemical residues or undesirable by-products when it is used correctly.
  • Ozone destroys very quickly Bakterienzel ⁇ len, enabling relatively short disinfection cycles. In comparison, chlorine must be absorbed by the cell to destroy the organism. Therefore, comparatively higher concentrations and longer disinfection times are required for chlorine.
  • the ozone circulates through the entire cycle at least once, preferably even several times. This can ensure that the entire circuit including all thereto ⁇ connected components and distribution devices is reliably disinfected.
  • the circulating water is irradiated with UV light of a UV light source and irradiated in the disinfection ⁇ ons slaughter to remove the ozone from the circulation, the water flowing through the circuit also with UV light of this UV light source , As a result, the ozone is converted into oxygen and thus removed from the water of Kreislau ⁇ fes.
  • a UV light source used in the water treatment operation for the oxidation of the water is also used in the disinfection operation to remove the ozone from the circulation.
  • a UV light source used in the water treatment operation for the oxidation of the water is also used in the disinfection operation to remove the ozone from the circulation.
  • the ozone is produced by an electrolysis of sour ⁇ material in water.
  • the electrolysis can take place directly in the water circulating through the circuit, ie the ozone is generated in the circulating water of the circuit, or the ozone can be generated outside the circuit and subsequently supplied to the circuit.
  • An inventive water treatment system for carrying out the method described above comprises a water ⁇ circulation with an inlet, an outlet, a pump for circulation of water through the water cycle and arranged in the circuit water treatment device.
  • the water treatment system in this case comprises means connected to the circuit, angeord ⁇ designated in particular in the loop, the ozone generating means, and arranged in the circuit ozone removing means.
  • the water treatment system preferably has a control device.
  • the controller advantage is designed such that it blocks the outlet at an ozone production by the ozone generation means and at a flow of ozone generated by the circuit.
  • the ozone removal device is a UV light source of the water treatment device, which serves to purify the water by irradiation with UV light.
  • control device is designed such that it prevents the irradiation of the water through the UV light source when ozone is generated by the ozone generating device and when the generated ozone flows through the circuit.
  • the ozone generating device is one in the
  • FIG 1 shows a first embodiment of a Wasseraufberei ⁇ processing system
  • FIG 3 shows a third embodiment of a water treatment system.
  • a pure or ultrapure water treatment system 1 according to the invention shown in FIG. 1 comprises a water circuit 2 having an inlet 3, a shut-off outlet 4 and a pump 5 for circulating water through the water circuit 2
  • Water between the inlet 3 and the outlet 4 a Wasserauf ⁇ preparation device 6 is arranged, which comprises a UV oxidation module 10, a Polisher module 11 and an ultrafiltration module 12, which are arranged one behind the other in the flow direction of the water in the circuit 2.
  • the outlet 4 is preferably formed as a Zapfdispenser ⁇ out.
  • a sterile filter 7 is connected.
  • the outlet 4 is connected to the inlet 3 via a return line 8.
  • a shut off by a valve 20 waste water pipe 21 is connected to its off ⁇ gear.
  • an ozone cell 9 for generating ozone is arranged in the circuit 2 between the pump 5 and the water treatment device 6.
  • a connecting line 30 for the supply of water to the circuit 2 is connected to the inlet 3.
  • a Deionisations- module 32 which is filled with mixed bed resin, for example, is deionized.
  • the UV oxidation module 10 in cooperation with the polishing module 11, serves to remove organic materials.
  • the UV oxidation module 10 comprises a UV light source 15 for irradiating the water flowing through the module with UV light.
  • the light source 15 generates light having a wave ⁇ length of 185 nm and 254 nm.
  • the Polishing module 11 has AK- tivkohle and ion exchange resin to remove organic components and to reduce the conductivity.
  • the ultrafiltration module 12 consists for example of a hollow fiber material and serves to reduce endotoxins and to remove DNase, RNase and DNA from the water.
  • a control device 13 serves to control the entire water treatment system 1 and controls via Steuerlei ⁇ device 14, the pump 5, the ozone cell 9, the light source 15, the Outlet (dispenser) 4 and the position of the valves 20 and 31. It is also not shown with sensors for measuring various parameters such as the conductivity of the water, the flow rates through the circuit, the temperature of the water in the cycle, etc. connected.
  • the circuit 2 is supplied to 3 regularlyhan ⁇ punched water through the inlet and continuously lent means of the pump 5 or intermittently circulated through the circuit. 2
  • the water then flows in the circuit, starting from the inlet 3 via the pump 5, the ozone cell 9, the UV oxidation module 10, the polishing module 11 which Ultrafiltra ⁇ tion module 12, the outlet 4 and the return line 8 back to the inlet 3
  • the ozone cell 9 is characterized by the
  • Control device 13 deactivated, i. it does not produce ozone.
  • the light of the light source 15 of the UV oxidation module 10 having the wavelength of 185 nm is generated in the passing current
  • the control device 13 For disinfection of the circuit 2 of the water treatment operation is based vorgege- by the control device 13 ⁇ Bener criteria, eg at regular intervals, interrupted and the water treatment system 1 switched to a disinfection operation.
  • the ozone cell 9 is activated so that they produced by electrolysis of sour ⁇ material in the ozone water flowing through them by the controller. 13
  • the ozone flows at a predetermined concentra ⁇ on for a predetermined time with the circulating water several times through the entire circuit and thereby disinfect all components of the circuit.
  • ⁇ it is sufficient for disinfection when the ozone with a concentration of 0.01 - 0.5 mg per liter of water flows for at least 10 minutes through the circuit and thereby is in contact with all the components of the circuit. Depending on the system and field of application, however, even lower concentrations and contact times may be sufficient for adequate disinfection. So that the ozone in the disinfection mode is not immediately removed by the light source 15 of the UV oxidation stage, the circulating water is not irradiated with the UV light of the light source 15 during the generation of the ozone and the ozone in the circuit 2 , This is prevented by the control device 13 in that it shuts off the light source 15.
  • the ozone generator is switched off by the ozone cell 9 and for the removal of ozone from the circuit 2, the light source 15 of the UV oxidation module 10 is again turned on by the STEU ⁇ ⁇ réelles worn. 13 This causes the water flowing through the circuit to be exposed to UV light with a wavelength of 254 nm. radiates, whereby the ozone is converted into oxygen and thus removed from the water of the circuit 2. Possibly since ⁇ resulting organic by-products are removed by the Ak ⁇ activated carbon and the ion exchange resin of the Polisher module 11. However, oxygen remaining in the water is harmless in relation to the quality of the water in almost all areas of application of a pure or ultrapure water system.
  • the water treatment system 1 After disinfection by the Steuerungseinrich- device 13, the water treatment system 1 is switched back from the disinfection mode in the water treatment operation and allows a discharge of water to a consumer.
  • UV light source 15 which serves to purify the water in Wasseraufkungsbe ⁇ drive, also serves to remove the ozone in disinfection ⁇ operation.
  • the TOC content and the bacterial endotoxin content in the treated water can be further reduced.
  • the ion exchanger contained in the polisher module 11 exchange resin in front of the ozone during the circulation of the ozone, the water can be guided past the polisher module 11 in this operating case, and by a bypass line sixteenth
  • the Umgehungslei ⁇ tung 16 is only locked again when the ozone to be removed from the circuit 2 through the irradiation with UV light of 254 nm at the end of the disinfection operation.
  • the opening and locking of the bypass line 16 can also be controlled by the control device 13.
  • the ultrafiltration module 12 can be flushed briefly with concentrate and the wastewater can be removed via the sewage line 21.
  • the outlet (dispenser) 4 and the sterile filter 7 can be rinsed briefly in the disinfecting operation with ozonated water from the circuit 2.
  • the sterile filter 7 can be removed and only the outlet (dispenser) 4 rinsed.
  • the ozone cell 9 is not arranged upstream of the UV oxidation device 10 but downstream of the UV oxidation device 10 in a bypass line 33 to the polishing module 11 and the ultrafiltration module 12.
  • the bypass line 33 which can be shut off by a valve 34 branches off from a line connection 35 between the UV oxidation device 10 and the polishing module 11 and opens into a line connection 36 between the ultrafiltration module 12 and the outlet (dispenser) 4.
  • the valve 34 opened by the controller 13 during the ozone generation and circulation of the ozone, so that the ozonated water flows through the bypass line 33 and thus past the Polis hanging module 11 and the ultrafiltration module 12 over.
  • the UV light source 15 in the UV oxidation ⁇ device 10 is turned off. If, at the end of the ozone removal disinfection operation, the UV light source 15 is switched on again, the control device 13 also closes the valve 34 and thus blocks the bypass 33, so that the water again flows through the polishing module 11 and the Ultrafiltration module 12 flows. If the ultrafiltration module 12 is insensitive ge ⁇ gen ozone or when the ultrafiltration module he ⁇ sets at regular intervals 12 by a new ultrafiltration module, it may also be sufficient to bridge the bypass ⁇ line 33, only the polishing module 11, ie, the bypass line 33 then opens into a line connection 37 between the polishing module 11 and the ultrafiltration module 12.
  • the ozone cell 9 is different from those shown in FIGS. 1 and 2 Embodiments downstream of the polishing module 11 in the line connection 37 between the polishing module 11 and the ultrafiltration module 12 is arranged.
  • the UV light source 15 of the UV oxidation device 10 in the disinfection mode can remain switched on during the generation and the flow of ozone through the circuit 2.
  • the ozone generated in the ozone cell 9 then flows via the outlet (dispenser) 4, the return line 8 and the pump 5 into the UV oxidation device 10, in which the ozone is removed from the water before it is supplied to the polishing module 11 becomes. An additional bypass line for the polishing module 11 is thus not needed.
  • the Polishing- module 11 contains usually at its input activated carbon, so that possible water removed in the remaining and flowing in the polishing module 11 from contact with the ozone Ionenaustau ⁇ exchange resin. If desired, the Ultrafiltra ⁇ tion module can be bridged by a bypass line 12 even when the ⁇ ser solution during the disinfection operation. In all the previously described cases, the Polishing- module 11 takes also because ⁇ through before ozone-containing water is estimated that the polishing module 11 and a therein polishing Patro- ne removed through a separate by-pass line prior to the start of the disinfection operation and by a Bypass tube is replaced.
  • the bridging tube can then be replaced again by the polishing module 11 or a polishing cartridge contained therein.
  • the bridging tube is preferably replaced by a new polishing module 11 or a new polishing cartridge in order to prevent the introduction of bacteria that adhere to the previous (old) polishing module 11 or to the previous (old) polishing Cartridge have accumulated to avoid.
  • the sterile filter 7 can also be located downstream of the outlet (dispenser) 4 upstream of the outlet (dispenser) 4, ie between the ultrafiltration module 12 and the outlet (dispenser) 4, be arranged in the circuit 2.
  • the exact exposure time and / or concentration of the ozone also depends on the amount of ozone produced by a reaction with the filter material of the various filters and a re ⁇ action of ozone with organic material, pyrogens and bacteria that in the filters are consumed.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Physical Water Treatments (AREA)

Abstract

L'invention concerne le fonctionnement d'un système de traitement des eaux (1), notamment d'un système de traitement d'eau pure ou extra-pure, dans lequel, lors d'un processus de traitement, l'eau est amenée dans un circuit (2), traitée par circulation dans le circuit (2) puis évacuée du circuit (2). L'invention vise à obtenir rapidement une désinfection efficace. A cet effet, lors d'un processus de désinfection, de l'ozone est additionné à l'eau circulant dans le circuit (2) ou de l'ozone est généré dans l'eau circulant dans le circuit (2), cet ozone parcourant au moins une partie du circuit (2) avec l'eau en circulation et étant ensuite évacué du circuit (2).
EP10776962A 2009-10-30 2010-10-25 Procédé permettant de faire fonctionner un système de traitement des eaux et système de traitement des eaux destiné à la réalisation de ce procédé, en particulier pour de l'eau ultra pure Withdrawn EP2493817A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910051489 DE102009051489A1 (de) 2009-10-30 2009-10-30 Verfahren zum Betrieb eines Wasseraufbereitungssystems sowie zur Durchführung des Verfahrens geeignetes Wasseraufbereitungssystem
PCT/EP2010/066035 WO2011051211A2 (fr) 2009-10-30 2010-10-25 Procédé permettant de faire fonctionner un système de traitement des eaux et système de traitement des eaux destiné à la réalisation de ce procédé

Publications (1)

Publication Number Publication Date
EP2493817A2 true EP2493817A2 (fr) 2012-09-05

Family

ID=43852820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10776962A Withdrawn EP2493817A2 (fr) 2009-10-30 2010-10-25 Procédé permettant de faire fonctionner un système de traitement des eaux et système de traitement des eaux destiné à la réalisation de ce procédé, en particulier pour de l'eau ultra pure

Country Status (3)

Country Link
EP (1) EP2493817A2 (fr)
DE (1) DE102009051489A1 (fr)
WO (1) WO2011051211A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2562458A (en) * 2017-03-17 2018-11-21 Vws Uk Ltd Method for providing ultrapure water

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2606910B2 (ja) * 1988-11-21 1997-05-07 神鋼パンテツク株式会社 超純水製造供給装置
JPH0720597B2 (ja) * 1992-04-17 1995-03-08 文夫 傳法 水処理方法およびその水処理装置
US5443740A (en) * 1992-10-07 1995-08-22 Christ Ag Process for the conditioning of ion exchange resins
JPH08126886A (ja) * 1994-10-28 1996-05-21 Japan Organo Co Ltd 超純水の製造方法及び装置
WO2002102723A1 (fr) * 2001-06-15 2002-12-27 Vrm Enterprises Pty Ltd Procede et appareil pour le traitement de l'eau
JP3998997B2 (ja) * 2002-03-01 2007-10-31 野村マイクロ・サイエンス株式会社 超純水供給管の殺菌方法
US6824695B2 (en) * 2003-02-28 2004-11-30 Gerard F. Tempest, Jr. System and method for water purification
JP4228732B2 (ja) * 2003-03-14 2009-02-25 栗田工業株式会社 超純水製造システム
US6991733B2 (en) * 2004-05-25 2006-01-31 Industrial Technology Research Institute Process for removing organics from ultrapure water
DE102004027574B4 (de) * 2004-06-05 2009-12-10 Siemens Ag Verfahren und Vorrichtung zur Aufbereitung von Badewasser
DE102007030850A1 (de) * 2006-10-14 2008-04-17 Rev Renewable Energy Ventures Ag Behälterentkeimung mit UVC-Strahlung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011051211A2 *

Also Published As

Publication number Publication date
WO2011051211A3 (fr) 2011-07-21
WO2011051211A2 (fr) 2011-05-05
DE102009051489A1 (de) 2011-05-12

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