WO2004044324A1 - Procede de reduction des depots contenus dans l'eau de machines a fabriquer la pate a papier, le papier ou le carton - Google Patents

Procede de reduction des depots contenus dans l'eau de machines a fabriquer la pate a papier, le papier ou le carton Download PDF

Info

Publication number
WO2004044324A1
WO2004044324A1 PCT/EP2002/012662 EP0212662W WO2004044324A1 WO 2004044324 A1 WO2004044324 A1 WO 2004044324A1 EP 0212662 W EP0212662 W EP 0212662W WO 2004044324 A1 WO2004044324 A1 WO 2004044324A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
paper
bromine
pulp
stabilised
Prior art date
Application number
PCT/EP2002/012662
Other languages
English (en)
Inventor
Alfred Pohlen
Gerhard Kern
Jeffrey Spedding
Original Assignee
Alfred Pohlen
Gerhard Kern
Jeffrey Spedding
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 Alfred Pohlen, Gerhard Kern, Jeffrey Spedding filed Critical Alfred Pohlen
Priority to PCT/EP2002/012662 priority Critical patent/WO2004044324A1/fr
Priority to AU2002368355A priority patent/AU2002368355A1/en
Priority to AU2003273412A priority patent/AU2003273412A1/en
Priority to DE03755567T priority patent/DE03755567T1/de
Priority to PCT/EP2003/011029 priority patent/WO2004031481A1/fr
Priority to DE60332549T priority patent/DE60332549D1/de
Priority to AT03755567T priority patent/ATE467721T1/de
Priority to EP03755567A priority patent/EP1556547B1/fr
Publication of WO2004044324A1 publication Critical patent/WO2004044324A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
    • C02F5/125—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen combined with inorganic substances
    • 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
    • C02F2103/023—Water in cooling circuits
    • 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
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry

Definitions

  • the present invention concerns a method for reducing deposits in water derived from or circulating in a pulp, paper or board making machinery.
  • Deposits forming within the water circuits in industrial plants are well known to cause problems. For instance scale forming on the surfaces of a heat-exchanger will reduce the efficiency of heat-transfer. In a cooling tower system, deposits can lead to mechanical breakdown of the cooling surfaces. Particularly in paper machines for example, deposits forming in the circuits can lead to detachment of these deposits and can lead to spots or defects in the paper sheet or to breaks in production. It can be clearly understood that a clean paper machine will have a significantly better runabil- ity than when contaminated with deposits and that the paper quality is enhanced.
  • Micro-organisms often find ideal growing conditions in a ' paper machine due to the warm temperature and substances present which can act as nutrients. These micro-organisms do not only multiply in the circuit water but also can form slime or bio-films on surfaces.
  • Fresh water can be an infection source of the micro-organisms, alternatively, raw materials used and especially waste paper used as secondary fibre can be further sources .
  • Some paper machines have large volume secondary water circuits such as intermediate storage tanks for cleaned white water, from a poly-disc or fibre recovery system for instance, whereby this water is re-used for stock preparation or for shower water on the machine.
  • any ' dissolved oxygen will rapidly be used up and lead eventually to anaerobic conditions especially in large vessels with slow throughput of circuit water.
  • Intermediate storage vessels for return water or sedimentation funnels are typical of this.
  • the anaerobic state that can develop in such vessels can lead to formation of fatty acids which can cause smell in the finished paper or to sulphides which can cause corrosion or disturb the chemical and biological equilibrium in the complex circuit system of the paper machine.
  • a significant reduction of the general microbiological activity in such machines can be of benefit in preventing unwanted smells, as well as reducing deposits caused by such microorganisms .
  • a: system can be used that does not necessarily reduce the number of non-sessile micro-organisms but prevents unwanted formation of slime colonies or over-thick bio-films.
  • lignosulphonates can be used for deposit control whereby it is said that the growth of microbes can be influenced to promote the presence of non-sessile microorganisms instead of slime building ones and thus reduce growth of colony-forming microbes.
  • a high microbe count can reduce biological deposits.
  • oxidising biocides There are ways of reducing micro-organism levels and thus deposits due to biological slime by using oxidising biocides. Not only can use of oxidizing biocides reduce numbers of micro-organisms directly but also through oxidising ability can eliminate anaerobic conditions thus reducing the chances that anaerobic micro-organisms can grow. Anaerobic metabolism can be responsible for the production of low molecular weight fatty acid products which cause smell problems in papermak- ing. Further, such oxidizing biocides can directly react with and eliminate some products of anaerobic respiration such as sulphides which can also cause smells and in fact corrosion.
  • BCDMH bromo-chloro-dimethyl hydantoin
  • the present invention is based on the problem of developing a process for control of micro-organisms and deposits connected thereof in the circuits of a pulp, paper or board machine whereby:
  • the number of micro-organisms in the circuit water can be reduced
  • the added products can be dosed using simple pumps such as a diaphragm pump
  • the activity of the oxidising component of the products added should not be high enough to damage other papermaking additives the oxidising biocide component of the added products does not cause significant corrosion of the machine parts
  • any unwanted reducing substances in the circuit such as for instance sulphides, can be oxidised to reduce anaerobic zones and reduce smells
  • object of the present invention is a method for reducing deposits in a pulp, paper or board making machinery by adding as a shock dose or continually a solution of a stabilised bromine in an amount ranging from 10 to 10.000 ppm based on the dry weight of solids contained in the (circulating) water in the machinery.
  • object of the present invention is a method for reducing deposits in a pulp, paper or board making machinery by adding as a shock dose or continually a solution of a stabilised bromine chloride in an amount ranging from 10 to 10.000 ppm based on the dry weight of solids contained in the (circulating) water in the machinery.
  • Preferred embodiments of the present invention can be derived from the subclaims . With the method of the invention the ad- vantages can be achieved which are described below and in the following examples.
  • deposits within the context of this invention means material which has accumulated or is present within the circuits, vessels and construction of paper, board or pulp making machinery and which can pose a threat to the quality of the paper or pulp being produced or to the runability of the machinery.
  • Typical locations for such deposits can be the inner surfaces of pipe-work, pumps or other devices carrying white-water, paper stock or pulp, the inside surfaces of the head-box, regions of the machinery where water is sprayed, inside surfaces of chests or holding tanks, formation-wire supports of de-watering foils and vacuum pumps.
  • Sources of such deposits can be due to the growth of microorganisms, especially slime-forming or filamentous bacteria and fungi. Deposits can also be caused by natural wood resins (pitch), synthetic resins, spun-fibres, stickies from adhesive contaminants in waste paper raw materials, certain papermaking additives, substances produced by chemical reactions in the circuit water and to inorganic scaling due to hardness of water.
  • pitch natural wood resins
  • synthetic resins synthetic resins
  • spun-fibres stickies from adhesive contaminants in waste paper raw materials
  • certain papermaking additives substances produced by chemical reactions in the circuit water and to inorganic scaling due to hardness of water.
  • the deposits can often be any combination of these biological, organic and inorganic materials.
  • Reduction of deposits within the context of this invention means the prevention, reduction or elimination of deposits which otherwise by their presence as a sessile growth or as particles set free into the circuits or process streams could adversely affect the quality of the paper of pulp being produced or affect the runability of the machinery. Total deposit reduction would mean that the surfaces of the machinery in contact with water or stock would be completely clean.
  • the method of this invention is primarily intended to reduce or stop microbiological activity whereby through reduction of the biological slime component of mixed deposits it can be that the whole deposit formation will loose its integrity and be dispersed or prevented from growing in the first place leading to a general reduction in many types of deposits not only purely those of biological origin.
  • DIP re-cycle pulp
  • the solution of stabilised bromine chloride as relating to the method of this invention can be dosed in appropriate quantities into the water circuits of pulp making machinery or into the aqueous circuits of paper or board machines and by measuring the effects in the ways described it has been possible to demonstrate that this method is able to successfully solve the problem as set out for this invention.
  • Addition levels of the solution of stabilised bromine chloride as a shock dose or continually to an aqueous system of a pulp, paper or board machine can be in the range of 10 to 10000 ppm based on the dry weight of solids contained in the aqueous system, preferably 50 to 1000 ppm but more typically 200 to 500 ppm. Examples
  • a solution of stabilised bromine chloride was obtained which was prepared under industrial conditions by bringing together bromine and chlorine to form bromine chloride and adding this stream to an over-based sodium salt of sulphamic acid whilst cooling to remove the exothermically generated heat using a similar process to that described in US patent 6,068,861.
  • the resultant product had a bromine chloride content of 11 % and a pH of 13.
  • the product so prepared had a mild odour, free of any intense halogen odour and was in the form of a low viscosity pale yellow liquid.
  • Example 2 Extended activity in a system with high levels of oxidizable substances
  • the stabilised bromine chloride product used for this example was a development product supplied under the name APIBROM L (API-Additives for Paper Industry GmbH) which was produced as in example 1.
  • the stabilised bromine chloride product used for this example was a development product supplied under the name APIBROM L (API-Additives for Paper Industry GmbH) which was produced as in example 1.
  • the stabilised bromine chloride product used for this example was a development product supplied under the name APIBROM L (API-Addit,ives for Paper Industry GmbH) which was produced as in example 1.
  • the following oxidising biocides were compared by measuring the Redox potential in a solution of the biocides dissolved in tap water with a Redox electrode.
  • Example 5 Prevention of biological deposits in a wood-free fine paper machine
  • the stabilised bromine chloride product used for this example was a development product supplied under the name APIBROM L (API-Additives for Paper Industry GmbH) which was produced ' as in example 1.
  • APIBROM L API-Additives for Paper Industry GmbH
  • a fine paper machine was producing special paper at a rate of approximately 80 tons per day.
  • the white water circuits were already being treated by continual addition of a development product known as APICLEAN OR-N-0-3 into the white water I circuit.
  • the product APICLEAN OR-N-0-3 supplied by API- Additives for Paper Industry GmbH
  • a solution of bromo-chl ⁇ ro dimethyl hydantoin (BCDMH) was being added into the head-box anti-foam shower water directly before the head-box.
  • BCDMH bromo-chl ⁇ ro dimethyl hydantoin
  • BCDMH was achieved by filling a dissolving unit known as a "Brominator" every few days with tablets of BCDMH. This was seen as an unwanted task due to the corrosive dust from the tablets necessitating the use of gloves, breathing filters etc. during re-filling.
  • the stabilized bromine chloride was added to the head-box shower water instead of the BCDMH solution, the machine ran for 20 days with no spot problems until a mechanical defect caused a necessary stop whereby, on opening the head-box, all surfaces under the water level were completely clean.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (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)
  • Paper (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne un procédé de réduction des dépôts contenus dans une machine à fabriquer la pâte à papier, le papier ou le carton, par addition, sous forme de dose ponctuelle ou en continu, d'une solution de brome ou de chlorure de brome stabilisé dont la quantité, qui est comprise dans une plage allant de 10 à 10000 ppm, dépend du poids sec des solides contenus dans l'eau (de circulation) de ladite machine.
PCT/EP2002/012662 2002-10-07 2002-11-12 Procede de reduction des depots contenus dans l'eau de machines a fabriquer la pate a papier, le papier ou le carton WO2004044324A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
PCT/EP2002/012662 WO2004044324A1 (fr) 2002-11-12 2002-11-12 Procede de reduction des depots contenus dans l'eau de machines a fabriquer la pate a papier, le papier ou le carton
AU2002368355A AU2002368355A1 (en) 2002-11-12 2002-11-12 Method for reducing deposits in water from pulp, paper or board making machines
AU2003273412A AU2003273412A1 (en) 2002-10-07 2003-10-06 Additive and method for avoiding or at least reducing deposits in water bearing and/or contacting industrial systems
DE03755567T DE03755567T1 (de) 2002-10-07 2003-10-06 Additiv und verfahren zur verhinderung oder wenigstens verminderung von ablagerung in wasserführenden und/oder mit wasser in kontakt stehenden industrieanlagen
PCT/EP2003/011029 WO2004031481A1 (fr) 2002-10-07 2003-10-06 Additif et procede permettant d'eviter ou d'au moins reduire les depots dans les systemes industriels transportant de l'eau et/ou se trouvant en contact avec de l'eau
DE60332549T DE60332549D1 (de) 2002-10-07 2003-10-06 Additiv und verfahren zur vermeidung oder zumindest zur verringerung von ablagerungen in wasserführenden industriellen systemen
AT03755567T ATE467721T1 (de) 2002-10-07 2003-10-06 Additiv und verfahren zur vermeidung oder zumindest zur verringerung von ablagerungen in wasserführenden industriellen systemen
EP03755567A EP1556547B1 (fr) 2002-10-07 2003-10-06 Additif et procede permettant d'eviter ou d'au moins reduire les depots dans les systemes industriels transportant de l'eau et/ou se trouvant en contact avec de l'eau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2002/012662 WO2004044324A1 (fr) 2002-11-12 2002-11-12 Procede de reduction des depots contenus dans l'eau de machines a fabriquer la pate a papier, le papier ou le carton

Publications (1)

Publication Number Publication Date
WO2004044324A1 true WO2004044324A1 (fr) 2004-05-27

Family

ID=32309289

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/012662 WO2004044324A1 (fr) 2002-10-07 2002-11-12 Procede de reduction des depots contenus dans l'eau de machines a fabriquer la pate a papier, le papier ou le carton

Country Status (2)

Country Link
AU (1) AU2002368355A1 (fr)
WO (1) WO2004044324A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009065829A1 (fr) * 2007-11-22 2009-05-28 Bim Kemi Ab Limitation des dépôts
RU2727726C2 (ru) * 2017-11-30 2020-07-23 Альфред ПОЛЕН Применяемое при эксплуатации очищающее средство для водоносного или состоящего в контакте с водой оборудования

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190491A (en) * 1976-08-02 1980-02-26 Rohm And Haas Company Process for controlling pitch in papermaking
US4966716A (en) * 1988-06-24 1990-10-30 Great Lakes Chemical Corporation Method for the control of biofouling in recirculating water systems
JPH08176996A (ja) * 1994-12-26 1996-07-09 Hakuto Co Ltd パルプ工場・製紙工場におけるスライム障害防止方法
JPH08325995A (ja) * 1995-05-10 1996-12-10 Calgon Corp 紙処理系におけるジクロロイソシアヌル酸アルカリ金属塩（無水）と臭化アルカリの使用法
US5976386A (en) * 1994-10-03 1999-11-02 A.Y. Laboratories Ltd. Method and apparatus for treating liquids to inhibit growth of living organisms
US6068861A (en) * 1998-06-01 2000-05-30 Albemarle Corporation Concentrated aqueous bromine solutions and their preparation
JP2000256993A (ja) * 1999-03-08 2000-09-19 Hakuto Co Ltd スライムコントロール方法
US20020003114A1 (en) * 2000-01-31 2002-01-10 Lonza Inc.; Partially halogenated hydantoins in papermaking applications

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190491A (en) * 1976-08-02 1980-02-26 Rohm And Haas Company Process for controlling pitch in papermaking
US4966716A (en) * 1988-06-24 1990-10-30 Great Lakes Chemical Corporation Method for the control of biofouling in recirculating water systems
US5976386A (en) * 1994-10-03 1999-11-02 A.Y. Laboratories Ltd. Method and apparatus for treating liquids to inhibit growth of living organisms
JPH08176996A (ja) * 1994-12-26 1996-07-09 Hakuto Co Ltd パルプ工場・製紙工場におけるスライム障害防止方法
JPH08325995A (ja) * 1995-05-10 1996-12-10 Calgon Corp 紙処理系におけるジクロロイソシアヌル酸アルカリ金属塩（無水）と臭化アルカリの使用法
US6068861A (en) * 1998-06-01 2000-05-30 Albemarle Corporation Concentrated aqueous bromine solutions and their preparation
JP2000256993A (ja) * 1999-03-08 2000-09-19 Hakuto Co Ltd スライムコントロール方法
US20020003114A1 (en) * 2000-01-31 2002-01-10 Lonza Inc.; Partially halogenated hydantoins in papermaking applications

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 12 3 January 2001 (2001-01-03) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 18 5 June 2001 (2001-06-05) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009065829A1 (fr) * 2007-11-22 2009-05-28 Bim Kemi Ab Limitation des dépôts
RU2727726C2 (ru) * 2017-11-30 2020-07-23 Альфред ПОЛЕН Применяемое при эксплуатации очищающее средство для водоносного или состоящего в контакте с водой оборудования

Also Published As

Publication number Publication date
AU2002368355A1 (en) 2004-06-03

Similar Documents

Publication Publication Date Title
CA3007778C (fr) Procedes de lutte microbienne
JP5174717B2 (ja) 工業プロセス水中におけるバイオフィルム生成の制御
JP3740157B2 (ja) 水の消毒のための方法
JP6498148B2 (ja) 紙を製造する方法
US9272927B2 (en) Method for preventing growth of microorganisms, and a combination for the prevention of microbial growth
US6054054A (en) Chemical for the prevention of attachment of microorganisms to surfaces
CN105829250A (zh) 使用杀生物剂用于处理工业水循环的方法
Lutey Process cooling water
WO2004044324A1 (fr) Procede de reduction des depots contenus dans l'eau de machines a fabriquer la pate a papier, le papier ou le carton
AU718226B2 (en) A method to solve the swelling sludge problem in waste treatment plants by controlling mycelium bacteria
AU2010226915B2 (en) Control of development of biofilms in industrial process water
WO2021235056A1 (fr) Procédé de suppression de production de sulfure d'hydrogène dans des réservoirs d'eau
JP2005161254A (ja) 水系のスライム付着防止方法
AU2002324310A1 (en) Control of development of biofilms in industrial process water
JP2006055727A (ja) パルプ系排水を処理する方法
IL159911A (en) Control of the development of a biological coil in industrially processed water
ZA200400701B (en) Control of development of biofilms in industrial process water.

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 SD SE SG SI 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 IE IT LU MC NL PT SE 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
NENP Non-entry into the national phase

Ref country code: JP