Method for stabilizing and conditioning urban and industrial wastewater sludge
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United States of America Patent
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Mar 3, 2009
Grant Date -
Apr 14, 2005
app pub date -
Nov 29, 2002
filing date -
Nov 29, 2001
priority date (Note) -
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Abstract
per ton of dry sludge; mixing the treated sludge for a time interval sufficient to stabilize the sludge and improve its dehydrability; then flocculating the stabilized sludge by adding an organic polymer; then dehydrating the flocculated sludge. Said method enables to significantly improve the dehydrability properties of the sludge while increasing the dry solid content during its mechanical dehydration.
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