WO2004014805A1 - Ameliorations apportees au traitement de l'eau - Google Patents

Ameliorations apportees au traitement de l'eau Download PDF

Info

Publication number
WO2004014805A1
WO2004014805A1 PCT/GB2003/003457 GB0303457W WO2004014805A1 WO 2004014805 A1 WO2004014805 A1 WO 2004014805A1 GB 0303457 W GB0303457 W GB 0303457W WO 2004014805 A1 WO2004014805 A1 WO 2004014805A1
Authority
WO
WIPO (PCT)
Prior art keywords
stream
caustic
membrane
effluent
contaminate
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.)
Ceased
Application number
PCT/GB2003/003457
Other languages
English (en)
Inventor
Alastair Gregor Turner
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.)
Veolia Water UK Ltd
Original Assignee
Veolia Water UK Ltd
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 Veolia Water UK Ltd filed Critical Veolia Water UK Ltd
Priority to AU2003255758A priority Critical patent/AU2003255758A1/en
Priority to GB0504024A priority patent/GB2407316A/en
Publication of WO2004014805A1 publication Critical patent/WO2004014805A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/14—Removing waste, e.g. labels, from cleaning liquid
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors

Definitions

  • the present invention relates to improvements relating to water treatment, in particular the recovery of alkalis/salts in aqueous solution using a membrane technique .
  • RGBs returnable glass bottles
  • the automated machinery for bottle washing uses large quantities of water heated to 60-70°C, and containing sodium hydroxide (typically 2-3%) as the primary cleansing fluid with a fresh water rinse at the end of the cycle.
  • Each plant typically produces around 20m 3 /h of effluent from the bottle washer during its operational run, the cleaning being a cascade of 2-3 passes of the cleaner with a bleed to effluent as fresh water is introduced for the final rinse.
  • the present practice is to remove the alkali from the effluent by neutralisation with acid.
  • the neutralisation reaction can be by direct acid addition and/or by using a cation column which will subsequently be regenerated by hydrochloric or sulphuric acid.
  • the former acid is predominantly used and causes the residual 0.05-0.15% caustic to become a saline effluent, carrying 0.08-0.24% sodium chloride . It is desired to reduce this saline component in the effluent .
  • a process for the treatment of a contaminated caustic effluent stream comprising the steps of :
  • the caustic constituents of the contaminate effluent stream do not need to be neutralised with, acid, often hydrochloric acid, thereby forming large concentrations of sodium chloride, i.e. salt.
  • acid often hydrochloric acid
  • reducing the salinity in the effluent this reduces the environmental impact of the overall effluent, and also makes it possible to recover and reuse the contaminate stream (after further cleaning) for; irrigation or secondary water services, (because of the reduction in the salt content) .
  • contaminated caustic effl ⁇ ent stream is well known in the art, and generally relates to an effluent stream from a cleaning process involving a. percentage, generally 2-3% but possibly lower or higher than this amount, of one or more caustic cleaning compounds .
  • austic refers to compounds which can act as a strong alkali, and is not limited to sodium hydroxide.
  • Compounds which can act as strong alkalis generally have a pH in the range 12-14, and. are well known in the art.
  • strong alkali resistant membrane relates to any membrane capable of acting at the pH of a strong alkali, grenerally above pHll, and usually in the range pH12 or above, up to pH14.
  • the membrane is a nanofiltration membrane.
  • the membrane is adapted to allow passage of the caustic-bearing solution, whilst retaining- in the reject stream heavy metal ions which are typically divalent and trivalent species. In the washing of returnable glass bottles, such heavy metal ions typically come from crown closures and labels and debris.
  • Some of the residual caustic may pass through the membrane into the contaminate stream which is dependant on the competing ions at the membrane interface. They can be neutralised at that time in a known manner such as with acid solution or on a cation column. However, typically the amount of caustic in the contaminate stream will not be so significant that acid addition increases the salinity to significantly effect recovery of the contaminate stream for subsequent use in e.g. irrigation or secondary water services.
  • the process of the present invention may be carried out at elevated temperatures, e.g. 35°C, to promote univalent salt passage through the membrane.
  • trace caustic in the contaminate stream can be e.g. absorbed on a de- causticiser cation unit.
  • the clean caustic-bearing stream is reusable, more preferably re-usable with the cleaning process from which the contaminated caustic effluent stream originated. That is, a looped system.
  • the clean caustic-bearing stream is concentrated, for example by a factor of 10, prior to re-use.
  • the present invention is useable with any contaminated caustic effluent stream.
  • Such streams can be used in the cleaning or other processes involving caustic systems, including but not limited to one or more of recycling, washing, cleaning, etc of bottles, metals, etc.
  • the present invention will generally be part of a. larger cleaning treatment process, which involves other filtration steps, such as carbon filtration, and the like, all known in the art.
  • the effluent from the bottle washer is passed through a heat exchanger, sand filter, carbon filter, cation column with acid addition, leading to a final effluent treatment plant (see Figure 1) .
  • This is typically provided an effluent from a treatment plant of a stream having a Total Dissolved Salts ( "TDS" ) content of over 2000ppm, which is now becoming the general environmental upper level of TDS water content that allows the water to be reused.
  • TDS Total Dissolved Salts
  • the present invention avoids the need for the acid addition, and the resultant significantly high salinity in the effluent stream .
  • a process for treating the effluent of a bottle washer comprising the steps of ;
  • step (b) passing the effluent of step (a) through a strong alkali resistant membrane to provide a separate clean caustic-bearing stream and a separate residual contaminate stream;
  • a water treatment plant having a strong alkali resistant membrane unit through which contaminated caustic effluent stream can be passed, and which plant does not include means to neutralise the caustic stream prior to passage through the membrane.
  • a strong alkali resistant membrane in the treatment of contaminated caustic effluent stream.
  • Figure 1 is a prior art bottle washer effluent stream treatment process
  • Figure 2 is a bottle washer effluent stream treatment process according to the present invention.
  • FIG. 1 there is shown the general process steps used to treat the effluent of a returnable glass bottles (RGB) plant.
  • the automated machinery for bottle washing uses large quantities of water heated to 60-70°C containing sodium hydroxide, typically of a concentration of 2-3%, as the primary cleansing, fluid, with a, fresh water rinse at the end of each cycle.
  • The. sand filter provides protection of the membrane from gross suspended solids contamination, and the carbon filter provides biological and colour removal treatment .
  • the caustic is then neutralised by direct acid addition and/or by using a cation column.
  • This generally creates .very high levels of sodium chloride, rendering the treated effluent water as unusable.
  • the ability of the effluent stream to add value is based on the physical and chemical characteristics which enable the treated effluent to be utilised and so save new water resources being consumed.
  • the level of salinity may not allow water to be recovered by reverse osmosis as the concentrate so derived would become injurious to the environment or to subsequent processing plant.
  • the effluent as treated may so compromise discharge that it may require a carrier water stream to allow its disposal. In this instance the effluent not only presents severe environmental impact but also increases the water consumed to affect its discharge.
  • FIG. 2 An embodiment of the present invention is shown in Figure 2.
  • the initial treatment steps are the same as in Figure 1, but after the carbon filter, a pH14 membrane cast from polysulfone and characterised as a nanofiltration membrane with a nominal cut off in the range 100 - 200K Daltons is used to provide a ⁇ clean caustic-bearing stream' as a permeate, and a contaminate, stream.
  • a pH14 membrane cast from polysulfone characterised as a nanofiltration membrane with a nominal cut off in the range 100 - 200K Daltons is used to provide a ⁇ clean caustic-bearing stream' as a permeate, and a contaminate, stream.
  • Prior to the nanofiltration there could be an optional ultrafiltration step to reduce suspended solids and fouling of the nanofiltration membrane.
  • the effect of the process is to reduce fc>y at least 50%, generally greater, the saline content of the contaminate stream.
  • the caustic bearing stream will have a caustic content of 0.05— 0.1% sodium hydroxide.
  • the recovered ⁇ clean' caustic water stream is suitable for reuse, with the caustic quantity typically being approximately 70-80% of t ie feed load in 80-85% of the feed volume. Dosing of this stream with further sodium hydroxide allows it to be recycled or reused in the bottle washer, where a sodium hydroxide concentration is typically 3%.
  • the final effluent treatment plant generally involves the use of a reverse osmosis (RO) membrane.
  • RO reverse osmosis
  • Such a membrane can concentrate the salt content in the contaminate stream by 3-4 times, and the reduction is saline content of the incoming stream will therefore allow the effluent to be reduced by 30% of its volume, and still meet discharge limits which are supposed to protect the environment, (generally TDS ⁇ 2000) .
  • the recovered 70% of the water can still be reused, and, similar to the caustic water recovery, reduce the input of fresh water.
  • Fresh water is a scarce commodity in some countries, and the process of the present invention reduces the cost of water produced, and treated for the RGB facility, whilst decreasing the environmental impact of the manufacture and bottle washer.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

L'invention concerne un processus pour le traitement d'un écoulement d'effluent de caustique contaminé. Ledit processus comprend les étapes suivantes : a) passer ledit flux à travers une membrane à forte résistance aux alcalis ; b) produire un flux contenant du caustique propre séparé et un flux contaminé résiduel séparé, cela sans neutraliser ledit flux de caustique contaminé avant le passage du flux à travers la membrane. Grâce à l'utilisation d'une membrane à forte résistance aux alcalis, lesdits constituants caustiques du flux d'effluents contaminés n'ont pas besoin d'être neutralisés avec de l'acide, souvent de l'acide hydrochlorydrique, tout en formant des concentrations importantes de chlorure de sodium, c'est à dire du sel. Grâce à la réduction de la salinité de l'effluent, l'impact de l'effluent complet sur l'environnement est réduit, ce qui permet de récupérer et de réutiliser le flux contaminé pour l'irrigation ou des services des eaux secondaires. Ledit processus est particulièrement approprié pour laver et nettoyer des bouteilles en verre.
PCT/GB2003/003457 2002-08-13 2003-08-08 Ameliorations apportees au traitement de l'eau Ceased WO2004014805A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003255758A AU2003255758A1 (en) 2002-08-13 2003-08-08 Improvements relating to water treatment
GB0504024A GB2407316A (en) 2002-08-13 2003-08-08 Improvements relating to water treatment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0218722A GB0218722D0 (en) 2002-08-13 2002-08-13 Improvements relating to water treatment
GB0218722.7 2002-08-13

Publications (1)

Publication Number Publication Date
WO2004014805A1 true WO2004014805A1 (fr) 2004-02-19

Family

ID=9942160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/003457 Ceased WO2004014805A1 (fr) 2002-08-13 2003-08-08 Ameliorations apportees au traitement de l'eau

Country Status (3)

Country Link
AU (1) AU2003255758A1 (fr)
GB (2) GB0218722D0 (fr)
WO (1) WO2004014805A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869309A1 (fr) * 2004-04-22 2005-10-28 Sidel Sas Procede de production d'eau de qualite a partir d'un effluent contenant un melange de reactifs oxydants peroxygenes et application a une installation de decontamination d'objets
US7575687B2 (en) 2005-08-16 2009-08-18 Ge Osmonics, Inc. Membranes and methods useful for caustic applications
US7909179B2 (en) 2005-08-16 2011-03-22 Ge Osmonics, Inc. Modified polyamide matrices and methods for their preparation
CN102557285A (zh) * 2011-12-16 2012-07-11 乌毡帽酒业有限公司 可回收利用的水循环处理系统
CN106186337A (zh) * 2016-08-03 2016-12-07 余乾 一种重金属废水处理系统
WO2025038612A1 (fr) * 2023-08-14 2025-02-20 The Coca-Cola Company Système de lavage de bouteille amélioré

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0551245A1 (fr) * 1992-03-06 1993-07-14 Filtrox-Werk AG Procédé de filtration de lessives polluées et installation pour mettre en oeuvre ce procédé
WO1995027681A1 (fr) * 1994-04-07 1995-10-19 Membrane Products Kiryat Weizmann Ltd. Procede et systeme de purification d'une solution caustique contaminee alimentee en continu
EP0884096A1 (fr) * 1997-06-10 1998-12-16 Crosswinds, Inc. Membranes semi-perméables encapsulées avec stabilité amélioré a l'acide et la base, procédé de leur fabrication et leur utilisation
US5888311A (en) * 1995-07-03 1999-03-30 Henkel-Ecolab Gmbh & Co. Ohg Process for cleaning factory equipment with integrated prerinse
DE19741546A1 (de) * 1997-09-20 1999-04-01 Inocermic Ges Fuer Innovative Reinigungsverfahren mit zwei Flüssigkeitskreisläufen
EP1044718A2 (fr) * 1999-04-13 2000-10-18 Nitto Denko Corporation Elément de membrane enroulé en spirale

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0551245A1 (fr) * 1992-03-06 1993-07-14 Filtrox-Werk AG Procédé de filtration de lessives polluées et installation pour mettre en oeuvre ce procédé
WO1995027681A1 (fr) * 1994-04-07 1995-10-19 Membrane Products Kiryat Weizmann Ltd. Procede et systeme de purification d'une solution caustique contaminee alimentee en continu
US5888311A (en) * 1995-07-03 1999-03-30 Henkel-Ecolab Gmbh & Co. Ohg Process for cleaning factory equipment with integrated prerinse
EP0884096A1 (fr) * 1997-06-10 1998-12-16 Crosswinds, Inc. Membranes semi-perméables encapsulées avec stabilité amélioré a l'acide et la base, procédé de leur fabrication et leur utilisation
DE19741546A1 (de) * 1997-09-20 1999-04-01 Inocermic Ges Fuer Innovative Reinigungsverfahren mit zwei Flüssigkeitskreisläufen
EP1044718A2 (fr) * 1999-04-13 2000-10-18 Nitto Denko Corporation Elément de membrane enroulé en spirale

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SPENCER P: "Highly stable membrane modules", FILTRATION AND SEPARATION, ELSEVIER ADVANCED TECHNOLOGY, OXFORD, GB, vol. 36, no. 7, September 1999 (1999-09-01), pages 28, XP004179535, ISSN: 0015-1882 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869309A1 (fr) * 2004-04-22 2005-10-28 Sidel Sas Procede de production d'eau de qualite a partir d'un effluent contenant un melange de reactifs oxydants peroxygenes et application a une installation de decontamination d'objets
WO2005113452A1 (fr) * 2004-04-22 2005-12-01 Sidel Participations Procede de production d'eau de qualite a partir d'un effluent contenant un melange de reactifs oxydants peroxygenes et application a une installation de decontamination d'objets
US7575687B2 (en) 2005-08-16 2009-08-18 Ge Osmonics, Inc. Membranes and methods useful for caustic applications
US7909179B2 (en) 2005-08-16 2011-03-22 Ge Osmonics, Inc. Modified polyamide matrices and methods for their preparation
CN102557285A (zh) * 2011-12-16 2012-07-11 乌毡帽酒业有限公司 可回收利用的水循环处理系统
CN106186337A (zh) * 2016-08-03 2016-12-07 余乾 一种重金属废水处理系统
CN106186337B (zh) * 2016-08-03 2019-06-14 江西利华环保有限公司 一种重金属废水处理系统
WO2025038612A1 (fr) * 2023-08-14 2025-02-20 The Coca-Cola Company Système de lavage de bouteille amélioré

Also Published As

Publication number Publication date
GB2407316A (en) 2005-04-27
GB0218722D0 (en) 2002-09-18
AU2003255758A1 (en) 2004-02-25
GB0504024D0 (en) 2005-04-06

Similar Documents

Publication Publication Date Title
AU2010101488A4 (en) Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane
CN101481157B (zh) 一种集成膜深度处理电镀废水工艺
CN103979729A (zh) 一种脱硫废水循环利用及零排放系统及方法
CN105776670A (zh) 废水分流分离分质处理利用工艺方法
CN108176229A (zh) 水处理中超滤滤芯污染控制方法
JP2016123949A (ja) 六価クロム代替となる処理水の無排水処理装置と、その方法
JP6344114B2 (ja) 水処理装置及び水処理設備の洗浄方法
WO2004014805A1 (fr) Ameliorations apportees au traitement de l'eau
CN114075011B (zh) 一种煤制甲醇工艺清净废水的处理方法及系统
CN103058406A (zh) 一种应用于双氧水净化的装置及工艺
CN101596410A (zh) 一种钢铁中水膜法除盐系统反渗透膜的清洗方法
JP2005288442A (ja) 膜モジュールの洗浄方法
CN102452696A (zh) 一种高盐含量高cod碱渣中和水的治理方法
JP2005137949A (ja) 食品工場工程水再利用方法
Kowalik-Klimczak et al. Regeneration of spent caustic and acidic cleaning baths using a pilot membrane system
US20140076808A1 (en) Sanitary cold water treatment systems and methods
KR100313664B1 (ko) 배추절임용소금물의회수.정제방법
JP6428017B2 (ja) 水処理装置及び水処理設備の洗浄方法
Kowalik-Klimczak et al. Application of pressure membrane processes for the minimization of the noxiousness of chromium tannery wastewater
JPH07148423A (ja) 膜分離装置の洗浄方法
JP2005538268A (ja) プロセス中の水およびＮａＣｌの再使用のための膜プロセスによる染浴の処理
KR20180065787A (ko) 폐역삼투막 재사용을 위한 세정 방법
JPH01119306A (ja) 逆浸透膜の洗浄方法
JP4415592B2 (ja) 膜分離方法および装置
JP6370629B2 (ja) 排水処理システム及びそれを用いた排水処理方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 0504024

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20030808

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP