FR2202043A1 - Purificn. of waste water fronm paper prodn. - contg. bleaching cpds. and lignins by precipitation and ion exchange - Google Patents

Purificn. of waste water fronm paper prodn. - contg. bleaching cpds. and lignins by precipitation and ion exchange

Info

Publication number
FR2202043A1
FR2202043A1 FR7335294A FR7335294A FR2202043A1 FR 2202043 A1 FR2202043 A1 FR 2202043A1 FR 7335294 A FR7335294 A FR 7335294A FR 7335294 A FR7335294 A FR 7335294A FR 2202043 A1 FR2202043 A1 FR 2202043A1
Authority
FR
France
Prior art keywords
waste water
cpds
bleaching
ion exchange
precipitation
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.)
Granted
Application number
FR7335294A
Other languages
French (fr)
Other versions
FR2202043B1 (en
Inventor
B Broddevall
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.)
Uddeholms AB
Original Assignee
Uddeholms AB
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 Uddeholms AB filed Critical Uddeholms AB
Publication of FR2202043A1 publication Critical patent/FR2202043A1/en
Application granted granted Critical
Publication of FR2202043B1 publication Critical patent/FR2202043B1/fr
Granted legal-status Critical Current

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028—Effluents derived from the washing or bleaching plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
    • B01J41/04—Processes using organic exchangers
    • B01J41/07—Processes using organic exchangers in the weakly basic form
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Paper (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

Waste water from bleaching of sulphated paper pulp using chlorine and/or chlorine cpds. is purified by (a) treating the waste water from the first stage of alkaline extraction with sulphuric, sulphurous or hydrochloric acid to precipitate lignin and other organics, (b) separating the ppt. (c) redissolving it in alkali for recycling (d) treating the acid liquor from (b) with a weakly basic ion exchange resin, (e) regenerating the resin when satd. using alkali, (f) recycling most of this alkali to the black liquor. With sulphurous acid a salt may be added to assist precipitation. A mixt. of H2SO4/HCl is added to pH =2. The process reduces pollution and allows reduction in consumption of purifying agents.
FR7335294A 1972-10-04 1973-10-03 Purificn. of waste water fronm paper prodn. - contg. bleaching cpds. and lignins by precipitation and ion exchange Granted FR2202043A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7212772A SE372298B (en) 1972-10-04 1972-10-04

Publications (2)

Publication Number Publication Date
FR2202043A1 true FR2202043A1 (en) 1974-05-03
FR2202043B1 FR2202043B1 (en) 1977-05-27

Family

ID=20296281

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7335294A Granted FR2202043A1 (en) 1972-10-04 1973-10-03 Purificn. of waste water fronm paper prodn. - contg. bleaching cpds. and lignins by precipitation and ion exchange

Country Status (4)

Country Link
JP (1) JPS4971201A (en)
CA (1) CA1013511A (en)
FR (1) FR2202043A1 (en)
SE (1) SE372298B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2290399A1 (en) * 1974-11-11 1976-06-04 Rohm & Haas Effluent purificn. in paper esp kraft pulp prodn - by passage through crosslinked aliphatic esp acrylic anion exchange resin
FR2605306A1 (en) * 1985-03-13 1988-04-22 Stone Container Corp PROCESS FOR DECOLORATING WASTE WATER FROM PULP AND PAPER

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695386A (en) * 1985-05-20 1987-09-22 Advanced Separation Technologies Incorporated Process for the decolorization of pulp mill process streams
JPH0351387A (en) * 1989-07-19 1991-03-05 Mitsubishi Paper Mills Ltd Method for washing digested pulp prior to oxygen bleaching

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2290399A1 (en) * 1974-11-11 1976-06-04 Rohm & Haas Effluent purificn. in paper esp kraft pulp prodn - by passage through crosslinked aliphatic esp acrylic anion exchange resin
FR2605306A1 (en) * 1985-03-13 1988-04-22 Stone Container Corp PROCESS FOR DECOLORATING WASTE WATER FROM PULP AND PAPER

Also Published As

Publication number Publication date
JPS4971201A (en) 1974-07-10
CA1013511A (en) 1977-07-12
FR2202043B1 (en) 1977-05-27
SE372298B (en) 1974-12-16

Similar Documents

Publication Publication Date Title
RU93004865A (en) METHODS FOR PRODUCING CHLORINE DIOXIDE
KR960703093A (en) METHOD FOR THE TREATMENT OF WATER TREATMENT SLUDGE
GB1426606A (en) Method of removing phenol from waste water
FR2202043A1 (en) Purificn. of waste water fronm paper prodn. - contg. bleaching cpds. and lignins by precipitation and ion exchange
GB1454660A (en) Method of recovering sodium hydroxide from pulping or bleaching waste liquor
BR8405541A (en) PROCESS FOR THE PRODUCTION OF LIGNINE THROUGH THE PRECIPITATION OF ALKALINE LIGNINE SOLUTIONS
KR910019961A (en) Method of Purifying Glycine
JPS5520666A (en) Sludge recovery method
RU95106466A (en) Method of reducing chloride content in system of recovery of pulping chemicals
JPS5554535A (en) Tin recovering method
Reeve et al. The recovery of sodium chloride from bleached Kraft pulp mills
EP0263424A3 (en) Process for removing arsenic from waste water containing arsenic
FI941238A (en) Method for ozone bleaching of pulp
DE3670778D1 (en) HYDRATION OF SULFONED CATION EXCHANGE RESINS.
SU143733A1 (en) Method of wastewater treatment plants viscose fibers
GB1029099A (en) Process for the production of pure glucose oxidase
SU785403A1 (en) Method of obtaining raw tall oil
SE8102091L (en) SET TO CLEAN SOLUTIONS CONTAINING ALKALIC CARBONATE AND ALKALISULPHATE, ANY ALKALI HYDROXIDE AND AT LEAST ONE OF THE METALS VANADIN, URANE AND MOLYBID
ATE13868T1 (en) PROCESS FOR THE ANAEROBIC DEGRADATION OF CALCIUM ION CONTAINING FLOUM AND WASH WATER AS WELL AS DECANTED MUD TRANSPORT WATER.
GB1007873A (en) Process for the manufacture of boric acid from calcium borate ores
Berov et al. Mechanism of Aluminum Sulfate Recovery from Lignin Sludge(Mekhanism izvlecheniya sulfat alyuminiya iz shlam-lignina)
KR870004673A (en) Calcium Carbonate Extraction Method Using Abandoned Shell
GB761786A (en) Improvements relating to the recovery of zinc sulphate from solutions containing zinc sulphate and magnesium sulphate
Nikolov et al. Treatment of chromium waste waters from tanneries and possibilities for recovery of chromium
Puzyrev PURIFICATION OF WASTE WATER FROM PAPER INDUSTRY

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse