NO962003L - Fremgangsmåte for rensing av prosessvann fra massefremstilling - Google Patents
Fremgangsmåte for rensing av prosessvann fra massefremstillingInfo
- Publication number
- NO962003L NO962003L NO962003A NO962003A NO962003L NO 962003 L NO962003 L NO 962003L NO 962003 A NO962003 A NO 962003A NO 962003 A NO962003 A NO 962003A NO 962003 L NO962003 L NO 962003L
- Authority
- NO
- Norway
- Prior art keywords
- process water
- water
- mass production
- concentrate
- mixed
- Prior art date
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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0094—Evaporating with forced circulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
- B01D1/12—Evaporators with vertical tubes and forced circulation
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/928—Paper mill waste, e.g. white water, black liquor treated
Landscapes
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Physical Water Treatments (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Prosessvann fra massefremstilling (2) renses i en separatoranordning (7) ved mekanisk eller en kom- binasjon av mekaniske eller kjemiske metoder og deretter inndampes 3), idet minst en del av kon- sentratet erholdt ved inndampningen resirkuleres 4 og blandes med prosessvann, innmatet til separator- anordningen (7). I en foretrukket utførelsesform tilsettes et fellemiddel (5) til det blandede vann omfattende prosessvannet og konsentratet. Den delen av konsentratet som ikke resirkuleres og blandes med prosessvannet (11) tilsettes eventuelt etter ytterligere inndampning, en syre (13) til pH i området 1-5, hvoretter resulterende flokker og utfeininger fjernes i en separatoranordning (12).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9303762A SE9303762L (sv) | 1993-11-15 | 1993-11-15 | Sätt att rena processvatten från massaframställning |
PCT/EP1994/003609 WO1995013991A1 (en) | 1993-11-15 | 1994-11-08 | Method for purifying process water from pulp manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
NO962003D0 NO962003D0 (no) | 1996-05-15 |
NO962003L true NO962003L (no) | 1996-07-04 |
Family
ID=20391749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO962003A NO962003L (no) | 1993-11-15 | 1996-05-15 | Fremgangsmåte for rensing av prosessvann fra massefremstilling |
Country Status (15)
Country | Link |
---|---|
US (1) | US5437791A (no) |
EP (1) | EP0729439B1 (no) |
JP (1) | JPH09504990A (no) |
CN (1) | CN1135204A (no) |
AT (1) | ATE164569T1 (no) |
AU (1) | AU8105794A (no) |
BR (1) | BR9408042A (no) |
CA (1) | CA2176001A1 (no) |
DE (1) | DE69409396T2 (no) |
ES (1) | ES2115342T3 (no) |
FI (1) | FI961888A (no) |
NO (1) | NO962003L (no) |
SE (1) | SE9303762L (no) |
WO (1) | WO1995013991A1 (no) |
ZA (1) | ZA948659B (no) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9800497D0 (en) * | 1998-01-09 | 1998-03-04 | Allied Colloids Ltd | Dewatering of sludges |
FI115977B2 (fi) * | 2003-04-07 | 2019-03-29 | Stora Enso Oyj | Alkalisen pesunesteen puhdistaminen |
DE102011088202B4 (de) | 2011-12-10 | 2018-04-05 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Verfahren zur prozesswasserreinigung |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB208503A (en) * | 1922-12-16 | 1924-05-01 | Kestner App Evaporateurs | Improvements in connection with apparatus for distilling water |
US2218053A (en) * | 1938-02-18 | 1940-10-15 | Firm Th Goldschmidt A G | Water purification |
US2897148A (en) * | 1954-03-03 | 1959-07-28 | Applic Biochimiques Soc Et | Process of purifying and utilizing residual waters resulting from the manufacture of paper pulp prepared by the soda process |
US3141816A (en) * | 1960-07-27 | 1964-07-21 | Nalco Chemical Co | Method of improving operational efficiency of white water recovery systems |
US3324632A (en) * | 1965-12-07 | 1967-06-13 | Combustion Eng | Apparatus for concentrating residual pulp liquor by direct contact with flue gases |
US3745063A (en) * | 1971-11-01 | 1973-07-10 | British Columbia Forest Prod L | Process for simultaneous turpentine recovery and odor control |
SE357950B (no) * | 1972-02-22 | 1973-07-16 | Casco Ab | |
JPS5060484A (no) * | 1973-09-29 | 1975-05-24 | ||
DE2655504A1 (de) * | 1976-03-18 | 1977-10-06 | Uddeholms Ab | Verfahren zur reinigung von dunkel gefaerbten, chlorhaltigen ablaugen aus den auf chlorbasis betriebenen bleichanlagen von zellstoffabriken |
DE3233605A1 (de) * | 1982-09-10 | 1984-03-15 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von vernetzten polyurethan-ionomerdispersionen |
US4413111A (en) * | 1982-09-29 | 1983-11-01 | Mobay Chemical Corporation | Isocyanate-terminated prepolymers with low free monomer contents |
JPS5978227A (ja) * | 1982-10-27 | 1984-05-07 | Yokohama Rubber Co Ltd:The | ウレタンプレポリマ−組成物 |
CA1247809A (en) * | 1984-03-21 | 1989-01-03 | Robert J. Spannuth | Spent pulping liquor recovery process |
FI78279C (fi) * | 1985-02-14 | 1989-07-10 | Kamyr Ab | Foerfarande foer avlaegsnande av loesta och i kolloidal form varande stormolekyliga organiska aemnen ur traefoeraedlingsindustrins avfallsvatten. |
JPS6346257A (ja) * | 1986-06-09 | 1988-02-27 | ダブリユ−・ア−ル・グレイス・アンド・カンパニ− | 架橋されたポリウレタンのエマルジヨンおよびその製法 |
GB2199821B (en) * | 1986-06-09 | 1990-04-04 | Purewater Sciences Int Inc | Method of and arrangement for purifying contamied water |
DE3627407C2 (de) * | 1986-08-13 | 1994-05-19 | Steinbeis Temming Papier Gmbh | Verfahren zur Reinigung von Wasserkreisläufen bei der Halbstoff- und Papierherstellung |
JPH0684486B2 (ja) * | 1986-09-09 | 1994-10-26 | 三井東圧化学株式会社 | 塗料組成物 |
SE462170B (sv) * | 1987-10-27 | 1990-05-14 | Aahlstrom Corp | Avlaegsnande av loesta och kolloidala makromolekylaera organiska aemnen ur effluenter |
DE3739261A1 (de) * | 1987-11-18 | 1989-06-01 | Bayer Ag | Verfahren zur herstellung von urethangruppen aufweisenden polyisocyanaten und ihre verwendung |
JPH0228210A (ja) * | 1988-04-26 | 1990-01-30 | Asahi Glass Co Ltd | プレポリマー組成物,その製造方法,およびその用途 |
US5000821A (en) * | 1988-05-25 | 1991-03-19 | Resources Conservation Company | Apparatus for controlling solid particle flow in an evaporator |
GB8913644D0 (en) * | 1989-06-14 | 1989-08-02 | Ici America Inc | Aqueous dispersions |
US5174859A (en) * | 1990-04-11 | 1992-12-29 | Hpd Incorporated | Method for treating mechanical pulp plant effluent |
US5230808A (en) * | 1991-06-17 | 1993-07-27 | Nalco Canada Inc. | Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater |
DE4141004A1 (de) * | 1991-12-12 | 1993-06-17 | Wurster Gerd | Verfahren zur wartungserleichterung von verdampfern und zusaetzlichen anlagenteilen, die mit dem verdampfer in verbindung stehen |
SE500783C2 (sv) * | 1992-05-05 | 1994-09-05 | Eka Nobel Ab | Sätt att rena vedhartsinnehållande process- eller avloppsvatten |
-
1993
- 1993-11-15 SE SE9303762A patent/SE9303762L/xx not_active Application Discontinuation
-
1994
- 1994-02-02 US US08/190,367 patent/US5437791A/en not_active Expired - Fee Related
- 1994-11-03 ZA ZA948659A patent/ZA948659B/xx unknown
- 1994-11-08 CN CN94194151A patent/CN1135204A/zh active Pending
- 1994-11-08 ES ES95900107T patent/ES2115342T3/es not_active Expired - Lifetime
- 1994-11-08 AU AU81057/94A patent/AU8105794A/en not_active Abandoned
- 1994-11-08 JP JP7514184A patent/JPH09504990A/ja not_active Withdrawn
- 1994-11-08 BR BR9408042A patent/BR9408042A/pt not_active Application Discontinuation
- 1994-11-08 WO PCT/EP1994/003609 patent/WO1995013991A1/en active IP Right Grant
- 1994-11-08 DE DE69409396T patent/DE69409396T2/de not_active Expired - Fee Related
- 1994-11-08 CA CA002176001A patent/CA2176001A1/en not_active Abandoned
- 1994-11-08 AT AT95900107T patent/ATE164569T1/de not_active IP Right Cessation
- 1994-11-08 EP EP95900107A patent/EP0729439B1/en not_active Expired - Lifetime
-
1996
- 1996-05-03 FI FI961888A patent/FI961888A/fi unknown
- 1996-05-15 NO NO962003A patent/NO962003L/no unknown
Also Published As
Publication number | Publication date |
---|---|
SE9303762D0 (sv) | 1993-11-15 |
ES2115342T3 (es) | 1998-06-16 |
SE9303762L (sv) | 1995-05-16 |
CA2176001A1 (en) | 1995-05-26 |
FI961888A0 (fi) | 1996-05-03 |
ZA948659B (en) | 1995-07-07 |
CN1135204A (zh) | 1996-11-06 |
EP0729439B1 (en) | 1998-04-01 |
WO1995013991A1 (en) | 1995-05-26 |
DE69409396D1 (de) | 1998-05-07 |
BR9408042A (pt) | 1996-12-24 |
EP0729439A1 (en) | 1996-09-04 |
NO962003D0 (no) | 1996-05-15 |
US5437791A (en) | 1995-08-01 |
FI961888A (fi) | 1996-05-13 |
DE69409396T2 (de) | 1998-08-27 |
ATE164569T1 (de) | 1998-04-15 |
JPH09504990A (ja) | 1997-05-20 |
AU8105794A (en) | 1995-06-06 |
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