METHOD FOR TREATMENT OF SLUDGE OR WASTEWATER
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United States of America Patent
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Issued Date -
Feb 11, 2010
app pub date -
Apr 10, 2007
filing date -
Apr 12, 2006
priority date (Note) -
Abandoned
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Abstract
A method of treating sludge or wastewater involving the following steps: a swelling step which prepares a swelling liquid by adding a powdery polymer flocculant to water; a dissolution step which obtains an aqueous flocculant solution by supplying the swelling liquid to a filtration component and passing a filtering area of the filtration component; a flocculation treatment step which adds the aqueous flocculant solution to sludge or wastewater, wherein the total processing time from the time point where the powdery polymer flocculant was added to water until just before adding to sludge or wastewater to the aqueous flocculant solution is less than 3 hours.
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