Process for the elimination of heavy metals

Process for the elimination of heavy metals

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,...

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Hauptverfasser: ENGSTROEM, BENGT T
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
METALLURGY
METHODS OF PRODUCING PAPER THEREON
PAPER-MAKING
PAPER-MAKING MACHINES
PRODUCTION OF CELLULOSE
TEXTILES
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator ENGSTROEM
BENGT T
description 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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subjects CHEMISTRY
METALLURGY
METHODS OF PRODUCING PAPER THEREON
PAPER-MAKING
PAPER-MAKING MACHINES
PRODUCTION OF CELLULOSE
TEXTILES
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Process for the elimination of heavy metals
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