SE8008115L - PROCEDURE FOR UTILIZATION OF WASTEWATER FALLS - Google Patents

PROCEDURE FOR UTILIZATION OF WASTEWATER FALLS

Info

Publication number
SE8008115L
SE8008115L SE8008115A SE8008115A SE8008115L SE 8008115 L SE8008115 L SE 8008115L SE 8008115 A SE8008115 A SE 8008115A SE 8008115 A SE8008115 A SE 8008115A SE 8008115 L SE8008115 L SE 8008115L
Authority
SE
Sweden
Prior art keywords
alkali
vacuum filter
dewatered
activated sludge
fibre
Prior art date
Application number
SE8008115A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE444013B (en
Inventor
V P Grudinin
B M Bukhteev
T V Dergunova
Original Assignee
Vn Proizv Ob Celljuloszno
Amursk Tsellyuloz Kartonnyj K
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
Priority claimed from SU792840536A external-priority patent/SU1038287A1/en
Priority claimed from SU792847164A external-priority patent/SU1044708A1/en
Application filed by Vn Proizv Ob Celljuloszno, Amursk Tsellyuloz Kartonnyj K filed Critical Vn Proizv Ob Celljuloszno
Publication of SE8008115L publication Critical patent/SE8008115L/en
Publication of SE444013B publication Critical patent/SE444013B/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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • D21C11/12—Combustion of pulp liquors
    • D21C11/122—Treatment, e.g. dissolution, of the smelt
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D21F1/74—Pulp catching, de-watering, or recovering; Re-use of pulp-water using cylinders
    • D21F1/76—Pulp catching, de-watering, or recovering; Re-use of pulp-water using cylinders with suction
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/01—Waste products, e.g. sludge

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)
  • Processing Of Solid Wastes (AREA)

Abstract

A method for recovery of wastewater residues containing the activated sludge biomass, fibre and rind and recycling the recovered residues back to the main production process comprising the steps of treating the waste water residues with alkali solution having a concentration of 5-80 g/l on the Na2O basis at a temperature of 20-70 DEG C and dewatering, e.g. in a vacuum filter, the reaction mixture obtained, the alkali filtrate decanted containing the activated sludge alkali hydrolysis products being used to dissolve the melt in the course of preparing an alkali pulping liquor used in the main production process, and the dewatered alkali mass being added, in an amount of up to 40 percent by mass, to a fibred mass composition for the manufacture of cardboard and wood-fibre board. The alkali solution may be a white sulphate liquor. From a sump 1, waste activated sludge is forwarded to a mixer 2 to which sewage containing fibre and rind is also fed. The mixture is dewatered in a vacuum filter 3, and the filtrate decanted from the vacuum filter is forwarded for washing the pulp or discharged on the purification structures. The dewatered layer of the residue is placed in an agitator 4 where the alkali solution (on an Na2O basis) is added. Liquid and solid phases are finally obtained from a second vacuum filter 5. <IMAGE>
SE8008115A 1979-11-20 1980-11-19 PROCEDURE TO USE WASTEWATER DISPENSES SE444013B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU792840536A SU1038287A1 (en) 1979-11-20 1979-11-20 Method of treating excessive active slurry
SU792847164A SU1044708A1 (en) 1979-12-03 1979-12-03 Fibrous mass for making cardboard and fibreboard

Publications (2)

Publication Number Publication Date
SE8008115L true SE8008115L (en) 1981-05-21
SE444013B SE444013B (en) 1986-03-17

Family

ID=26665812

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8008115A SE444013B (en) 1979-11-20 1980-11-19 PROCEDURE TO USE WASTEWATER DISPENSES

Country Status (4)

Country Link
DE (1) DE3043518C2 (en)
FI (1) FI73253C (en)
GB (1) GB2066304B (en)
SE (1) SE444013B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113173743A (en) * 2021-04-12 2021-07-27 新华盛节能科技股份有限公司 Method for preparing environment-friendly and energy-saving geopolymer material by taking fresh water sludge as single raw material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9212867D0 (en) * 1992-06-17 1992-07-29 Wiggins Teape Group Ltd Recovery and re-use of raw materials from paper mill waste sludge
RU2079454C1 (en) * 1995-07-18 1997-05-20 Грудинин Владимир Павлович Method of processing excessive activated sludge
CN106809938A (en) * 2016-05-24 2017-06-09 江山显进机电科技服务有限公司 Paper mill sludge press filtration water process acid adding system
CN107445291B (en) * 2017-09-11 2020-12-15 浙江海洋大学 Method for strengthening synchronous removal of nitrogen and bisphenol A in sewage based on modified sludge alkaline hydrolysate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113173743A (en) * 2021-04-12 2021-07-27 新华盛节能科技股份有限公司 Method for preparing environment-friendly and energy-saving geopolymer material by taking fresh water sludge as single raw material

Also Published As

Publication number Publication date
GB2066304B (en) 1983-11-02
DE3043518C2 (en) 1985-08-01
FI73253B (en) 1987-05-29
GB2066304A (en) 1981-07-08
DE3043518A1 (en) 1981-09-03
FI73253C (en) 1987-09-10
SE444013B (en) 1986-03-17
FI803603L (en) 1981-05-21

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