WATER TREATMENT PLANT WITH BALLASTED FLOCS AND DEGREASING
The invention concerns the use of a coagulation-flocculation-decantation device for water treatment to degrease water inside the device itself so as to eliminate therefrom more than 20% of hexane-extractable matter without resorting to separate degreasing means by flotation. The invention also conce...
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Main Author | |
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Format | Patent |
Language | English French German |
Published |
13.09.2006
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Subjects | |
Online Access | Get full text |
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Summary: | The invention concerns the use of a coagulation-flocculation-decantation device for water treatment to degrease water inside the device itself so as to eliminate therefrom more than 20% of hexane-extractable matter without resorting to separate degreasing means by flotation. The invention also concerns a plant comprising a coagulation-flocculation-decantation device by ballasted flocs having a coagulation zone ( 1 ), means supplying ( 4 ) a granular material denser than water ( 4 ), a flocculation ( 6 ), a decantation zone ( 8 ) and means for recycling ( 15 ) granular material including at least a hydrocyclone ( 17 ). The characterised in that it does nut comprise degreasing means provided upstream of the coagulation-flocculation-decantation device, the grease being removed from the water inside the coagulation-flocculation-decantation device itself without means for injecting air or an equivalent gas. |
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Bibliography: | Application Number: EP20020708408 |