Method of removing lignin from bleach plant effluents

Details Method of removing lignin from bleach plant effluents Method of removing lignin from bleach plant effluents

1987-11-18

1989-03-14

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

162 38, 162 39, 210713, 210724, 210726, 210928, C02F 158, D21C 1100

Patent

active

048122076

ABSTRACT:
A method of removing lignin from bleach plant effluents by using cellulose fibres. The method comprises an acidous phase during which sludge containing cellulose fibres is added to the acidous effluent, and an alkaline phase during which alkaline waste water is added to the effluent-sludge solution. A portion of the produced fraction containing fibres is recirculated to the acidous phase for reuse of the fibres.

REFERENCES:
patent: 3627679 (1971-12-01), Fuller
patent: 4179329 (1979-12-01), Svarz
patent: 4420369 (1983-12-01), Eaton et al.
patent: 4490257 (1984-12-01), Becker
Rytholm "Pulping Processes"; Interscience Pub., New York, Sep. 1967 p. 849.
Fursell, "New Method of Fiber Recovery From Pulp & Paper Waste Sludge", Paper Trade Journal, Mar. 8, 1971 (162-190).

Affiliated with

Also associated with

Rating

Method of removing lignin from bleach plant effluents does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of removing lignin from bleach plant effluents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of removing lignin from bleach plant effluents will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-892059