Process for the elimination of heavy metals
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United States of America Patent
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May 27, 1997
Grant Date -
N/A
app pub date -
Feb 16, 1995
filing date -
Feb 21, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a process for the elimination of heavy metals from a closed white water system within the pulp and paper industry, wherein one adjusts the pH of the white water to between 5 and 11, and that one subsequently precipitates the resins present using a flocculation agent, whereby by a simultaneous elimination of the heavy metals is obtained.
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