Method for dewatering municipal solid waste refuse
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United States of America Patent
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Nov 22, 1994
Grant Date -
N/A
app pub date -
May 24, 1993
filing date -
May 24, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for dewatering the refuse ash generated by a municipal solid waste facility by adding to the ash a copolymer and a nonionic surfactant selected from the group consisting of primary alcohol ethoxylates, secondary alcohol ethoxylates and alkyl phenol ethoxylates. The copolymer consists of repeat units of an ethylenically unsaturated compound and an acrylamido alkane sulfonic acid compound.
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