Printech Archive, February, 1998
Newsprint sludge


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From: Wayne Pferdehirt (pferdehi@epd.engr.wisc.edu)
Date: Tue Feb 17 1998 - 15:36:00 CST


FYI, forwarded from P2tech listserv. Message is in response
to someone asking about options for disposal of newsprint
sludge.
-Wayne

------- Forwarded Message Follows --

The sludge that doesn't make the grade is made up of short fibers and
kaolin (clay), which gives the glossy inserts their gloss, in addition
to the ink to which others have replied. Marcal Paper was faced with
disposing of truckloads of the stuff per day. They found that it is
highly absorbant "kitty litter," but rather than sell it in the pet
trade, they went even "greener:" they market it for cleaning up
environmental spills. If you've ever used kitty litter to clean up
those oil drips in your garage, you know how effective this is.

Bruce Herrick, Ph.D.
NJTAP



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