Method and apparatus for recovering wash water from pulp and pap

Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

210650, 210651, 210175, 210180, 210770, 210774, 2102572, 162 29, 162261, B01D 6100

Patent

active

054704812

ABSTRACT:
A method and apparatus for recovering wash water from effluent generated by a pulp and paper mill. The method includes filtering at least a portion of the effluent to form a filtrate stream and an organic solids feed stream. The organic solids feed stream is exposed to a temperature and a pressure which are supercritical for water to cause a substantial portion of the organic component to oxidize and form a product stream that, when cooled, includes a gaseous component, an inorganic solids component, and a liquid wash water component. The wash water component is separated from the gaseous and inorganic solids components, thereby recovering wash water.

REFERENCES:
patent: 3627679 (1971-12-01), Fuller
patent: 3639206 (1972-02-01), Spruill
patent: 3876497 (1975-04-01), Hoffman
patent: 3876536 (1975-04-01), Pradt et al.
patent: 3977966 (1976-08-01), Pradt et al.
patent: 4100730 (1978-07-01), Pradt
patent: 4113446 (1978-09-01), Modell et al.
patent: 4141829 (1979-02-01), Thiel et al.
patent: 4155845 (1979-05-01), Ancelle et al.
patent: 4174280 (1979-11-01), Pradt et al.
patent: 4241722 (1980-12-01), Dickinson
patent: 4292953 (1981-08-01), Dickinson
patent: 4338199 (1982-07-01), Modell
patent: B14338199 (1988-11-01), Modell
patent: 4543190 (1985-09-01), Modell
patent: 4564458 (1986-01-01), Burleson
patent: 4692252 (1987-09-01), Atwood et al.
patent: 4713177 (1987-12-01), Atwood et al.
patent: 4822497 (1989-04-01), Hong et al.
patent: 4869833 (1989-09-01), Binning et al.
patent: 5075017 (1991-12-01), Hossain et al.
patent: 5100560 (1992-03-01), Huang
patent: 5106513 (1992-04-01), Hong
patent: 5133877 (1992-07-01), Rofer et al.
patent: 5252224 (1993-10-01), Modell et al.
patent: 5296099 (1994-03-01), Griggs et al.
Bramlette, et al., Sandia Report (SAND90-8229), "Destruction of DOE/DP Surrogate Wastes with Supercritical Water Oxidation Technology," (Nov. 1990).
Ermolaev, N. P., et al., "Pipe Inner Surface Scale Sample Remover--has Washing Soln. Vessel Connected to Shaft with Brush, by Flexible Pipeline," (From Derwent Publications, Ltd., London, GB, Week 8350, Section EI, Feb. 25, 1983, Abstract SU-996908).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for recovering wash water from pulp and pap 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 and apparatus for recovering wash water from pulp and pap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for recovering wash water from pulp and pap will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2011062

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.