DE2803700A1 - METHOD OF CLEANING WASHER OR WASTE WATER FROM RECEIVING PAPER - Google Patents
METHOD OF CLEANING WASHER OR WASTE WATER FROM RECEIVING PAPERInfo
- Publication number
- DE2803700A1 DE2803700A1 DE19782803700 DE2803700A DE2803700A1 DE 2803700 A1 DE2803700 A1 DE 2803700A1 DE 19782803700 DE19782803700 DE 19782803700 DE 2803700 A DE2803700 A DE 2803700A DE 2803700 A1 DE2803700 A1 DE 2803700A1
- Authority
- DE
- Germany
- Prior art keywords
- water
- calcium
- washing
- substances
- soap
- 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- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Description
28037Q028037Q0
S yz(K J.M. Voith GmbH S yz (K JM Voith GmbH
Kennwort: "V'T'J-Abwasserreinigung" HeidenheimKeyword: "V'T'J wastewater treatment" Heidenheim
Verfahren zum Reinigen des bei der Altpapieraufbereitung anfallenden Waschoder AbwassersProcess for cleaning the washing or waste paper processing Sewage
Die !Erfindung betrifft ein Verfahren zum Reinigen des bei der Altpapieraufbereitung anfallenden Wasch- oder Abwassers von Fremdstoffen, insbesondere von sich hydrophob verhaltenden St offen.The invention relates to a method for cleaning the in the Recycled paper treatment of washing or waste water from Foreign substances, in particular of hydrophobically behaving St open.
Aufgrund der Umweltschutzbedingungen und der Wasserknappheit ist es erforderlich, bei der Altpapieraufbereitung weitgehend im Kreislauf mit dem verwendeten Wasser zu fahren. Die Aufbereitung des Wasch- oder Abwassers bereitet jedoch Schwierigkeiten. Zumeist wird das Wasch- oder Abwasser in aufwendigen Flotations- oder Sedimentationsanlagen nachgereinigt und dann wieder in den Aufbereitungsprozeß eingeführt. Nachteilig ist dabei jedoch, daß diese Methoden relativ aufwendig sind oder das Abwasser nur ungenügend gereinigt wird. Erfolgt die Altpapieraufbereitung durch ein Waschverfahren, bestehen Schwierigkeiten, die in dem Waschwasser vorhandenen Druckfarbeteilchen auszuscheiden. Da das Waschwasser im allgemeinen wieder in den Prozeß zurückgeführt wird, führt dies dazu, daß durch die immer stärker werdende Anreicherung mit Druckfarbeteilchen der Gutstoff immer dunkler wird.Due to the environmental protection conditions and the scarcity of water, it is necessary to a large extent in the recycling of waste paper to run in a cycle with the water used. However, the treatment of the washing or waste water causes difficulties. The washing or wastewater is mostly cleaned in complex flotation or sedimentation systems and then cleaned again introduced into the preparation process. The disadvantage here, however, is that these methods are relatively expensive or the wastewater is only insufficiently cleaned. If the waste paper is prepared by a washing process, there are difficulties that to separate ink particles present in the wash water. Since the wash water is generally fed back into the process is, this leads to the fact that the accept is always due to the ever increasing enrichment with printing ink particles gets darker.
Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, ein Verfahren zum Reinigen des bei der Altpapieraufbereitung anfallenden Wasch- oder Abwassers zu schaffen, durch das eine bessere Reinigung des Abwassers erreicht wird.The present invention is therefore based on the object of providing a method for cleaning the waste paper that arises To create washing or waste water, through which a better cleaning of the waste water is achieved.
31/022831/0228
38037003803700
Erfindungsgemäß wird dieie "Aufgabe dadurch gelöst, daß das zu
reinigende Wasser mit Kalziumseifen gemischt wird und die als
Sammler für die hydrophob reagierenden Stoffe wirkende Kalziümseife
durch Sedimentation, Flotation, durch Zentrifugieren oder Aussieben zusammen mit den hydrophoben Stoffen abgeschieden und
das gereinigte Wasser wieder in den Aufbereitungsprozeß zurückgeführt wird.According to the invention, the "object is achieved in that the to
Cleansing water is mixed with calcium soaps and used as
Collector for the hydrophobically reacting substances calcium soap separated by sedimentation, flotation, centrifugation or sieving together with the hydrophobic substances and the purified water is returned to the treatment process.
Es hat sich nämlich gezeigt, daß Kalziumseifen zusammen mit
hydrophob reagierenden, d.h. wasserabstoßenden Stoffen sehr gut iiusflocken und so aufgrund ihrer Größe durch Sedimentation, einfache
Flotation, durch Sieben oder Zentrifugieren aus dem zu
reinigenden Wasser abgeschieden werden können. Insbesondere bei der Reinigung des Waschwassers hat sich herausgestellt, daß die
Druckfarbeteilchen in sehr kurzer Zeit abgeschieden werden können.It has been shown that calcium soaps work together with
hydrophobically reacting, ie water-repellent substances very well iiusflocken and so due to their size by sedimentation, simple flotation, by sieving or centrifugation from the to
cleaning water can be separated. Particularly when cleaning the washing water, it has been found that the printing ink particles can be separated out in a very short time.
Eine vorteilhafte Weiterbildung der Erfindung besteht darin, daß die Kalziumseifen mit terpenischen Kohlenwasserstoffen oder deren
Alkoholen, aliphatischen oder aromatischen Kohlenwasserstoffen oder deren Alkoholen bzw. deren Gemisch behandelt werden.
Diese Zusatzstoffe, die der Kalziumseife beigemischt werden, dienen im wesentlichen als Kleber bzw. Bindemittel.An advantageous further development of the invention consists in treating the calcium soaps with terpenic hydrocarbons or their alcohols, aliphatic or aromatic hydrocarbons or their alcohols or a mixture thereof.
These additives, which are added to the calcium soap, essentially serve as adhesives or binders.
Zur Chemikalleneinsparunp; ist es dabei vorteilhaft, wenn als
Trägersubstanz für die Kalziumseifenkugeln Stoffe mit spezifisch
großer Oberfläche verwendet werden, auf deren Oberflächen eine
Seife aufgebracht wird, die anschließend in eine Kalziumseife umgewandelt wird.For chemical savings; it is advantageous if as
Carrier substance for the calcium soap balls Substances with a specific large surface are used, on the surfaces of which a
Soap is applied, which is then converted into a calcium soap.
Ein vorteilhaftes Verfahren zur Reinigung des Waschwassers beim Waschdeinken besteht darin, daß das Waschwasser in einem Mischbehälter mit Kalziumseifen gemischt wird und in einer nachfolgenden Trennstufe die Trennung des Waschwassers von den an den Kalziumseifen haftenden Verunreinigungen vorgenommen wird.An advantageous method for cleaning the washing water when washing thought is that the washing water is in a mixing container is mixed with calcium soaps and in a subsequent separation stage the separation of the washing water from the calcium soaps adhering impurities is made.
Eine vorteilhafte Ausbildung der Erfindung besteht dabei darin, daß die Trennstufe ein oder mehrere Hydrozyklone aufweist.An advantageous embodiment of the invention consists in that the separation stage has one or more hydrocyclones.
909831/0228909831/0228
Nachfolgend ist ein Beispiel der Erfindung für ein Waschverfahren beschrieben.An example of the invention for a washing method is described below.
Das beim Waschverfahren anfallende Waschwasser wird in einen Mischbehälter eingegeben und dort intensiv zusammen mit mit Natriumseife getränktem Holzstoff gemischt. Wenn eine genügend hohe Wasserhärte von mehr als 6° dH und ein pH-Wert von ca. 10 vorhanden ist, werden die Natriumseifen in Kalziumseifen umgewandelt. Je nach der Zusammensetzung der Druckfarben können noch terpenlsche Kohlenwasserstoffe oder deren Alkohole, aliphatische oder aromatische Kohlenwasserstoffe oder deren Alkohole bzw. deren Gemisch zubegeben werden. Diese Chemikalien werden dabei am besten vorher nchon mit der Kalziumseife gemischt.The washing water resulting from the washing process is poured into a Entered mixing container and mixed there intensively together with wood pulp soaked with sodium soap. If one is enough If there is a high water hardness of more than 6 ° dH and a pH value of approx. 10, the sodium soaps are converted into calcium soaps. Depending on the composition of the printing inks, you can still terpenic hydrocarbons or their alcohols, aliphatic or aromatic hydrocarbons or their alcohols or their Mixture are added. It is best to mix these chemicals with the calcium soap beforehand.
Zur Chemikalieneinsparung ist es auch möglich, Hackschnitzel oder andere Stoffe mit spezifisch großer Oberfläche mit ölsäure zu benetzen, die anschließend verseift wird. In entsprechend hartem V/asser bilden sich dann auf der Oberfläche der Hackschnitzel Kalziumseifen, an die sich dann die Druckfarbeteilchen und andere hydrophob reagierende Stoffe anlegen.To save chemicals, it is also possible to use oleic acid to treat wood chips or other substances with a specific large surface area to wet, which is then saponified. In correspondingly hard water, the wood chips then form on the surface Calcium soaps, to which the ink particles and other hydrophobically reacting substances then attach themselves.
Die Kalziumseifen, an die sich die Druckfarbeteilchen angelegt haben, fallen während des Mischvorganges in dem Behälter in Größen von ca. 1 bis 5 rom aus. Durch Sedimentation, Flotation oder durch eine Trennung in einem Hydrozyklon können diese Fremdstoffe dann abgeschieden werden. Aufgrund ihrer Größe ist auch eine Sortierung über ein Sieb möglich.The calcium soaps to which the ink particles have applied fall into the container during the mixing process Sizes from approximately 1 to 5 rom. By sedimentation, flotation or these foreign substances can then be separated out by separation in a hydrocyclone. Because of their size is too sorting via a sieve is possible.
909831/022*909831/022 *
Heidenheim, den 25.01.78
Lo/SröHeidenheim, January 25th, 78
Lo / Srö
Claims (4)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782803700 DE2803700A1 (en) | 1978-01-28 | 1978-01-28 | METHOD OF CLEANING WASHER OR WASTE WATER FROM RECEIVING PAPER |
AT812678A AT362321B (en) | 1978-01-28 | 1978-11-14 | METHOD FOR CLEANING THE WASHING OR WASTE WASTE FROM WASTE PAPER TREATMENT |
GB7848963A GB2013169A (en) | 1978-01-28 | 1978-12-18 | >Purifying Water from Waste Paper Treatment |
IT1924379A IT1110985B (en) | 1978-01-28 | 1979-01-12 | WASTEWATER OR WASHING WATER PURIFICATION PROCESS PRODUCED DURING WASTE PAPER TREATMENT |
JP403079A JPS54110652A (en) | 1978-01-28 | 1979-01-19 | Method for purifying washing water or waste water formed in case when used paper is selected |
FR7901723A FR2415606A1 (en) | 1978-01-28 | 1979-01-22 | PROCESS FOR DEPURING WASH WATER OR WASTEWATER RESULTING FROM THE PROCESSING OF OLD PAPER |
SE7900652A SE7900652L (en) | 1978-01-28 | 1979-01-24 | PROCEDURE FOR CLEANING THE WASHING OR WASTEWATER WHEN PREPARING RETURN PAPER |
ES477150A ES477150A1 (en) | 1978-01-28 | 1979-01-25 | >Purifying Water from Waste Paper Treatment |
FI790245A FI790245A (en) | 1978-01-28 | 1979-01-25 | FOERFARANDE FOER RENING AV TVAETT- OCH AVFALLSVATTEN SOM UPPKOMMER VID AOTERBEREDNING AV AVFALLSPAPPER |
NO790263A NO790263L (en) | 1978-01-28 | 1979-01-26 | PROCEDURE FOR CLEANING THE WASHING AND WASTE THAT APPEARS IN PREPARATION OF OLD PAPER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782803700 DE2803700A1 (en) | 1978-01-28 | 1978-01-28 | METHOD OF CLEANING WASHER OR WASTE WATER FROM RECEIVING PAPER |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2803700A1 true DE2803700A1 (en) | 1979-08-02 |
Family
ID=6030596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782803700 Withdrawn DE2803700A1 (en) | 1978-01-28 | 1978-01-28 | METHOD OF CLEANING WASHER OR WASTE WATER FROM RECEIVING PAPER |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS54110652A (en) |
AT (1) | AT362321B (en) |
DE (1) | DE2803700A1 (en) |
ES (1) | ES477150A1 (en) |
FI (1) | FI790245A (en) |
FR (1) | FR2415606A1 (en) |
GB (1) | GB2013169A (en) |
IT (1) | IT1110985B (en) |
NO (1) | NO790263L (en) |
SE (1) | SE7900652L (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3914146A1 (en) * | 1989-04-28 | 1990-10-31 | Baehre & Greten | Disposal of flushing water produced in mfr. of composite wood prods. - by absorbing waste water into wood particles forming raw material for mfg. process |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE201072T1 (en) * | 1992-12-23 | 2001-05-15 | Imerys Minerals Ltd | METHOD FOR TREATING WASTE SUSPENSIONS |
ES2113056T3 (en) * | 1993-12-14 | 1998-04-16 | Ecc Int Ltd | RECOVERY OF WATER AND SOLIDS IN A PAPER FACTORY. |
JP5252485B2 (en) * | 2008-05-12 | 2013-07-31 | 中越パルプ工業株式会社 | Method for producing deinked pulp and deinking aid used therefor |
JP5215799B2 (en) * | 2008-09-30 | 2013-06-19 | 東邦化学工業株式会社 | Pitch remover |
-
1978
- 1978-01-28 DE DE19782803700 patent/DE2803700A1/en not_active Withdrawn
- 1978-11-14 AT AT812678A patent/AT362321B/en not_active IP Right Cessation
- 1978-12-18 GB GB7848963A patent/GB2013169A/en not_active Withdrawn
-
1979
- 1979-01-12 IT IT1924379A patent/IT1110985B/en active
- 1979-01-19 JP JP403079A patent/JPS54110652A/en active Pending
- 1979-01-22 FR FR7901723A patent/FR2415606A1/en active Pending
- 1979-01-24 SE SE7900652A patent/SE7900652L/en unknown
- 1979-01-25 FI FI790245A patent/FI790245A/en unknown
- 1979-01-25 ES ES477150A patent/ES477150A1/en not_active Expired
- 1979-01-26 NO NO790263A patent/NO790263L/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3914146A1 (en) * | 1989-04-28 | 1990-10-31 | Baehre & Greten | Disposal of flushing water produced in mfr. of composite wood prods. - by absorbing waste water into wood particles forming raw material for mfg. process |
Also Published As
Publication number | Publication date |
---|---|
IT1110985B (en) | 1986-01-13 |
AT362321B (en) | 1981-04-27 |
ES477150A1 (en) | 1979-07-01 |
IT7919243A0 (en) | 1979-01-12 |
SE7900652L (en) | 1979-07-29 |
GB2013169A (en) | 1979-08-08 |
FI790245A (en) | 1979-07-29 |
FR2415606A1 (en) | 1979-08-24 |
JPS54110652A (en) | 1979-08-30 |
NO790263L (en) | 1979-07-31 |
ATA812678A (en) | 1980-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAP | Request for examination filed | ||
OD | Request for examination | ||
8139 | Disposal/non-payment of the annual fee |