NO790263L - PROCEDURE FOR CLEANING THE WASHING AND WASTE THAT APPEARS IN PREPARATION OF OLD PAPER - Google Patents
PROCEDURE FOR CLEANING THE WASHING AND WASTE THAT APPEARS IN PREPARATION OF OLD PAPERInfo
- Publication number
- NO790263L NO790263L NO790263A NO790263A NO790263L NO 790263 L NO790263 L NO 790263L NO 790263 A NO790263 A NO 790263A NO 790263 A NO790263 A NO 790263A NO 790263 L NO790263 L NO 790263L
- Authority
- NO
- Norway
- Prior art keywords
- washing
- water
- calcium
- substances
- soap
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000002360 preparation method Methods 0.000 title claims description 7
- 238000004140 cleaning Methods 0.000 title description 4
- 239000002699 waste material Substances 0.000 title 1
- 239000000344 soap Substances 0.000 claims description 24
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 20
- 239000011575 calcium Substances 0.000 claims description 20
- 229910052791 calcium Inorganic materials 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000005406 washing Methods 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 17
- 150000001298 alcohols Chemical class 0.000 claims description 7
- 239000002351 wastewater Substances 0.000 claims description 6
- 238000005188 flotation Methods 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 239000008213 purified water Substances 0.000 claims description 2
- 238000011109 contamination Methods 0.000 claims 1
- 239000000976 ink Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- -1 terpene hydrocarbons Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
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)
- Paper (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Detergent Compositions (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Physical Water Treatments (AREA)
- Water Treatment By Sorption (AREA)
Description
Oppfinnelsen vedrører en fremgangsmåte til rensing The invention relates to a method for cleaning
ved vaske- eller avvann som fremkommer ved oppberedning av gammelt papir for fremmedstoffer, spesielt for stoffer som forholder seg hydrofobt. by washing or waste water arising from the preparation of old paper for foreign substances, especially for substances that are hydrophobic.
På grunn av økologiske betingelser og vannknapphet Due to ecological conditions and water scarcity
er det nødvendig ved oppberedning av gammelt papir å kjøre mest mulig i kretsløp med det vann som anvendes. Oppberedningen av vaske- eller avvann byr imidlertid på vanskeligheter. For det meste etterrenses vaske- eller avvann i omstendelig flota-sjons- eller sedimentasjonsanlegg og innføres deretter igjen i oppberedningsprosessen. Uheldig er derved imidlertid at disse metoder er relativt omstendelig eller avvannet bare renses util-strekkelig. Foregår gammelt papir oppberedning ved en vaskefremgangsmåte, består vanskeligheter i å utskille de trykkfarvepartikler som er tilstede :i vaskevannet.1 Da vaskevannet vanlig-vis igjen tilbakeføres i prosessen, fører dette til at ved en stadig sterkere blivende anrikning med trykkfarvepartikler blir produktet alltid mørkere. when processing old paper, it is necessary to cycle as much as possible with the water used. However, the preparation of washing or waste water presents difficulties. For the most part, washing or waste water is purified in an elaborate flotation or sedimentation plant and then reintroduced into the preparation process. Unfortunately, however, these methods are relatively cumbersome or the dewatered water is only insufficiently purified. If old paper is prepared by a washing process, there are difficulties in separating the printing ink particles that are present: in the washing water.1 As the washing water is usually returned to the process, this leads to an increasingly stronger enrichment with printing ink particles, the product always becomes darker.
Til grunn for oppfinnelsen ligger følgelig den oppgave å tilveiebringe en fremgangsmåte til rensing av vaske- The invention is therefore based on the task of providing a method for cleaning laundry
eller avvannet som fremkommer ved oppberedning av gammelt papir, og hvorved det oppnås en bedre rensing av avvannet. or the waste water that arises from the preparation of old paper, and by which a better purification of the waste water is achieved.
Ifølge oppfinnelsen løses denne oppgave ved at According to the invention, this task is solved by
vannet som skal '. renses blandes med kalsiumsåper og kalsiumsåpene som virker som samlere for de hydrofobt reagerende stoffer utskilles ved sedimentasjon, flotasjon, sentrifugering eller ut-siling sammen med de hydrofobe stoffer og det rensede vann til-bakeføres igjen i oppberedningsprosessen. the water that should '. cleaned is mixed with calcium soaps and the calcium soaps, which act as collectors for the hydrophobically reacting substances, are separated by sedimentation, flotation, centrifugation or screening together with the hydrophobic substances and the purified water is fed back into the preparation process.
Det har nemlig vist seg at kalsiumsåper sammen med hydrofobt reagerende, dvs. vannavstøtende stoffer utfnokker meget godt og således kan utskilles på grunn av deres størrelse ved sedimentasjon, enkel flotasjon, siling eller sentrifugering fra vannet som skal renses. Spesielt ved rensing av vaskevann har det vist seg at trykkfarvepartiklene kan utskilles iløpet av kort tid. It has been shown that calcium soaps together with hydrophobically reacting, i.e. water-repellent, substances degrade very well and can thus be separated due to their size by sedimentation, simple flotation, screening or centrifugation from the water to be purified. Especially when cleaning washing water, it has been shown that the printing ink particles can be separated within a short time.
En fordelaktig videreutforming av oppfinnelsen består i at kalsiumsåpene behandles med terpeniske hydrokarboner eller deres alkoholer, alifatiske eller aromatiske hydrokarboner eller deres alkoholer resp. deres blandinger. Disse tilsetnings-stoffer som tilblandes til kalsiumsåpen tjener i det vesentlige som klebe- resp. bindemiddel. An advantageous further development of the invention consists in the calcium soaps being treated with terpenic hydrocarbons or their alcohols, aliphatic or aromatic hydrocarbons or their alcohols or their mixtures. These additives which are mixed into the calcium soap essentially serve as adhesives or binder.
For kjemikaliebesparelse er det derved fordelaktig når det som bærestoff for kalsiumsåpekulene anvendes stoffer med spesifikt stor overflate,på deres overflater påføres en såpe som deretter omdannes i en kalsiumsåpe. In order to save chemicals, it is therefore advantageous when substances with a specifically large surface are used as a carrier for the calcium soap balls, and a soap is applied to their surfaces which is then converted into a calcium soap.
En fordelaktig fremgangsmåte til rensing av vaskevann ved vaske-"deinken" består i at vaskevannet blandes i en blandebeholder med kalsiumsåper og i et etterfølgende skilletrinn fore-tas adskillelse av vaskevannet fra de til kalsiumsåpen hengende forurensninger. An advantageous method for purifying washing water at the washing "deinken" consists in the washing water being mixed in a mixing container with calcium soaps and in a subsequent separation step the washing water is separated from the contaminants attached to the calcium soap.
En fordelaktig utførelse av oppfinnelsen består i at skilletrinnet har en eller flere hydrocykloner. An advantageous embodiment of the invention consists in the separation step having one or more hydrocyclones.
I det følgende omtales eksempel på oppfinnelsen for en vaskefremgangsmåte. In the following, an example of the invention is described for a washing method.
Det ved vaskefremgangsmåten dannede vaskevann ifylles i en blandebeholder og blandes der intenst sammen med natriumsåpe impregnert trestoff. Når det er tilstede en tilstrekkelig høy vannhårdhet på mer enn 6° dH og en pH-verdi på ca. 10, omdannes natriumsåpen til kalsiumsåpe. Alt etter trykkfarvenes sammen-setning kan det dessuten tilsettes terpeniske hydrokarboner eller deres alkoholer, alifatiske eller aromatiske hydrokarboner eller deres alkoholer resp. deres blanding. Disse kjemikalier blandes derved best på forhånd allerede med kalsiumsåpen. The washing water produced by the washing process is filled into a mixing container and mixed intensively with sodium soap impregnated wood. When there is a sufficiently high water hardness of more than 6° dH and a pH value of approx. 10, the sodium soap is converted into calcium soap. Depending on the composition of the printing inks, terpene hydrocarbons or their alcohols, aliphatic or aromatic hydrocarbons or their alcohols or their alcohols can also be added. their mixture. These chemicals are therefore best mixed in advance already with the calcium soap.
For kjemikaliebesparelse er det også mulig å fukte opphakket kutt eller andre stoffer med spesifikk stor overflate med oljesyre som deretter forsåpes. I:'tilsvarende hårdt vann danner det seg da på hakkekuttets overflate kalsiumsåper, hvorpå da trykkfarvepartiklene og andre hydrofobt reagerende stoffer legger seg. To save chemicals, it is also possible to moisten chopped cuts or other substances with a specific large surface area with oleic acid which is then saponified. In correspondingly hard water, calcium soaps form on the surface of the chop, on which the printing ink particles and other hydrophobically reacting substances settle.
Kalsiumsåpene, hvorpå trykkfarvepartiklene legger seg, The calcium soaps, on which the ink particles settle,
faller ut under blandeprosessen i beholderen i. størrelse på falls out during the mixing process in the container i. size of
ca. 1 til 5 mm. Ved sedimentasjon, fIotasjon eller ved skilling i en hydrocyklon, kan disse fremmedstoffer deretter avsiles. about. 1 to 5 mm. By sedimentation, flotation or by separation in a hydrocyclone, these foreign substances can then be filtered out.
På grunn av deres størrelse er det også mulig med en sortering over en sikt. Due to their size, it is also possible to sort over a sieve.
Claims (5)
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 |
|---|---|
| NO790263L true NO790263L (en) | 1979-07-31 |
Family
ID=6030596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO790263A NO790263L (en) | 1978-01-28 | 1979-01-26 | PROCEDURE FOR CLEANING THE WASHING AND WASTE THAT APPEARS IN PREPARATION OF OLD 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) |
Families Citing this family (5)
| 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 |
| DE69333941T2 (en) * | 1992-12-23 | 2006-06-14 | Imerys Minerals Ltd | Process for the treatment of waste suspensions |
| DE69408807T2 (en) * | 1993-12-14 | 1998-06-18 | Ecc Int Ltd | Water and solids recovery in a paper mill |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54110652A (en) | 1979-08-30 |
| IT7919243A0 (en) | 1979-01-12 |
| DE2803700A1 (en) | 1979-08-02 |
| FI790245A (en) | 1979-07-29 |
| SE7900652L (en) | 1979-07-29 |
| FR2415606A1 (en) | 1979-08-24 |
| ES477150A1 (en) | 1979-07-01 |
| AT362321B (en) | 1981-04-27 |
| GB2013169A (en) | 1979-08-08 |
| ATA812678A (en) | 1980-09-15 |
| IT1110985B (en) | 1986-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4360402A (en) | Process and apparatus for preparing waste paper for reuse | |
| CN105780568A (en) | Pulp making technology through performing biological enzyme softening lignin removal twice combined with mechanical method | |
| ES478106A1 (en) | Recovering waste paper | |
| JPS63243390A (en) | Method and plant for regenerating old paper | |
| KR101918638B1 (en) | Method for removing ink from paper | |
| EP0178009B1 (en) | Process for reconditioning contaminated soil | |
| CN210262480U (en) | Biological chemical mechanical pulp production equipment | |
| NO790263L (en) | PROCEDURE FOR CLEANING THE WASHING AND WASTE THAT APPEARS IN PREPARATION OF OLD PAPER | |
| US3248277A (en) | Process for the purification of aqueous dispersions of fibrous materials | |
| WO1993024702A1 (en) | Waste paper treatment process | |
| KR890000069B1 (en) | Process for preparation of waste paper | |
| US2347147A (en) | Clarification of white water by froth flotation | |
| US2264421A (en) | Wood chip cleaning process | |
| US3032188A (en) | Method of separating wood chips from bark chips | |
| CA2216063C (en) | Method for cleanup of contaminated sandy soils and recovery of hydrocarbons therefrom | |
| JP2645303B2 (en) | Deinking method of coated printing waste paper | |
| US4904373A (en) | Fossil resin flotation from coal by selective coagulation and depression of coal | |
| NO167311B (en) | PROCEDURE FOR THE REMOVAL OF USED OR SURFACE COOKING CHEMICALS. | |
| SU1090446A1 (en) | Method of dressing fluorite ores | |
| JP2000027084A (en) | Regeneration of waste paper of corrugated board by rising-floating and kneading treatment | |
| CN107419576A (en) | The production method of deinking recycled writing paper | |
| RU2051752C1 (en) | Method for concentration of small-size muscovite | |
| JP6808457B2 (en) | Manufacturing method of deinked pulp | |
| JPH0681287A (en) | Method for removing lightweight foreign material in pulp | |
| EP1223245B1 (en) | Process for cleaning a pulp of primary fibres |