METHOD FOR THICKENING SLUDGE DERIVED FROM WATER TREATMENT BY FLOCCULATION-DECANTATION WITH BALLASTED FLOC
A method is provided for thickening sludge produced through a ballasted flocculation process. The sludge and granular material from the ballasted flocculation process are directed to a sludge separator where the sludge is separated from the granular material. Thereafter the separated sludge is sent...
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Main Author | |
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Format | Patent |
Language | English Portuguese |
Published |
22.10.2009
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Subjects | |
Online Access | Get full text |
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Summary: | A method is provided for thickening sludge produced through a ballasted flocculation process. The sludge and granular material from the ballasted flocculation process are directed to a sludge separator where the sludge is separated from the granular material. Thereafter the separated sludge is sent to a degassing area and the sludge is degassed. A flocculating agent is mixed or injected into the sludge. The sludge is directed to a sludge thickener with a load at a sill calculated on the surface of the thickener greater than 200 kgMIS/m2/day. This process produces a thickened sludge having a concentration greater than 10 gm/l. |
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Bibliography: | Application Number: PT20020704800T |