SE7910282L - VIEW TO REDUCE EMISSIONS OF DANGEROUS SUBJECTS IN THE MANUFACTURE OF STRONG MECHANICAL AND CHEMICAL MECHANISM - Google Patents

VIEW TO REDUCE EMISSIONS OF DANGEROUS SUBJECTS IN THE MANUFACTURE OF STRONG MECHANICAL AND CHEMICAL MECHANISM

Info

Publication number
SE7910282L
SE7910282L SE7910282A SE7910282A SE7910282L SE 7910282 L SE7910282 L SE 7910282L SE 7910282 A SE7910282 A SE 7910282A SE 7910282 A SE7910282 A SE 7910282A SE 7910282 L SE7910282 L SE 7910282L
Authority
SE
Sweden
Prior art keywords
permeate
water
led
manufacture
view
Prior art date
Application number
SE7910282A
Other languages
Swedish (sv)
Other versions
SE440095B (en
Inventor
J E Hook
H T Lundahl
Original Assignee
Eka 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 Eka Ab filed Critical Eka Ab
Priority to SE7910282A priority Critical patent/SE440095B/en
Publication of SE7910282L publication Critical patent/SE7910282L/en
Publication of SE440095B publication Critical patent/SE440095B/en

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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • 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
    • D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
    • 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)
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Paper (AREA)

Abstract

During the manufacturing of heavy mechanical and chemi-mechanical pulp the chips are led to a chip washer (1), an impregnation device (2), defibration (4), cleaning (5), screening (10) and water extraction (11). Waste (6) from the cleaning process (5) is divided in a semi-permeable membrane device (7) in a concentrate (8) containing highly molecular substances and a permeate (6) containing low molecular substances as well as chemical remains. The concentrate (8) is led away and destroyed while the permeate (9) is re-circulated to the process, appropriately to the chip wash (1) impregnation (2) and/or defibration (4). The surplus of back water from the water extractor (11), back water drain (14), can also be led to the membrane device (7) and the permeate to be partially used from there as a replacement for fresh water.<IMAGE>
SE7910282A 1979-12-13 1979-12-13 Method used in the manufacturing of heavy mechanical and chemi-mechanical pulp SE440095B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE7910282A SE440095B (en) 1979-12-13 1979-12-13 Method used in the manufacturing of heavy mechanical and chemi-mechanical pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7910282A SE440095B (en) 1979-12-13 1979-12-13 Method used in the manufacturing of heavy mechanical and chemi-mechanical pulp

Publications (2)

Publication Number Publication Date
SE7910282L true SE7910282L (en) 1981-06-14
SE440095B SE440095B (en) 1985-07-15

Family

ID=20339550

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7910282A SE440095B (en) 1979-12-13 1979-12-13 Method used in the manufacturing of heavy mechanical and chemi-mechanical pulp

Country Status (1)

Country Link
SE (1) SE440095B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE1000219A1 (en) * 2010-03-09 2011-09-10 Metso Paper Inc Method and system for treatment of a drain

Also Published As

Publication number Publication date
SE440095B (en) 1985-07-15

Similar Documents

Publication Publication Date Title
ATE24023T1 (en) PROCESS FOR MAKING PAPER PULP FROM AN UNSORTED MIXTURE OF PRINTED WASTE PAPER.
DE60233879D1 (en) DEVICE FOR PROCESSING USED PAPER THREADS
EP0073609A3 (en) Rotary screening machine
DK0482045T3 (en) Procedure for reprocessing old paper
SE8700143D0 (en) PROCEDURAL METHOD OF BLACKING CELLULOSAMAS OR FRACTION THEREOF, APPLICATION FOR APPLICATION BY IMPLEMENTATION OF THE PROCEDURAL KIT AND SCREW PRESSURE, IN PARTICULAR FOR USE OF THE PROCEDURAL RESP IN THE PLANT
SE8700549D0 (en) SET TO CLEAN GROUNDLUT IN SULPHATE MASFACTURER&#39;S CHEMICALS RECOVERY
DK446480A (en) PROCEDURE FOR RECOVERING USED PAPER
SE8405798L (en) DEVICE PREPARATION DEVICE
ATE19416T1 (en) PROCESS FOR THE CONTINUOUS REMOVAL OF SILICA FROM PULP WASTE.
SE9203745D0 (en) PROCEDURE AND DEVICE FOR TREATMENT OF BACKGROUND WATER
SE7910282L (en) VIEW TO REDUCE EMISSIONS OF DANGEROUS SUBJECTS IN THE MANUFACTURE OF STRONG MECHANICAL AND CHEMICAL MECHANISM
DE59403619D1 (en) Process water recycling plant and process
DK536187A (en) METHOD AND APPARATUS FOR SEPARATING LIQUID FROM SOLID PARTICLES
FI872279A (en) FOERFARANDE OCH ANLAEGGNING FOER TVAETTNING AV TRANSPORTBEHAOLLARE SAMT FOER BEHANDLING OCH CIRKULERING AV VAETSKOR ANVAENDA VID TVAETTNINGEN.
SE7608391L (en) SET AND DEVICE FOR TREATMENT OF WASTE MATERIAL
FI96522C (en) Method for the production of bleached chemithermomechanical pulps
JPS54102056A (en) Process for high-speed treatment of waste water
DE60009485D1 (en) METHOD AND DEVICE FOR PRODUCING FIBER FIBER FROM OLD PAPER
SE7910281L (en) WAY TO REDUCE EMISSIONS IN DANGEROUS SUBJECTS IN THE MANUFACTURE OF INK, MECHANICAL MASS
ES477150A1 (en) &gt;Purifying Water from Waste Paper Treatment
GB1082273A (en) Deinking of waste paper
FI954089A (en) Method and apparatus for cleaning cellulose residue
JPS5387552A (en) Water treating apparatus
JPS57177306A (en) Treatment of emulsified oil
SE7907666L (en) FIBER FRACTIONING DEVICE

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 7910282-8

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 7910282-8

Format of ref document f/p: F