Liquid purification or separation – Flow – fluid pressure or material level – responsive – Discharge of treated material
Reexamination Certificate
2006-08-01
2006-08-01
Hruskoci, Peter A. (Department: 1724)
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Discharge of treated material
C210S188000, C210S195300, C210S199000, C210S202000, C210S522000
Reexamination Certificate
active
07083715
ABSTRACT:
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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Coats & Bennett P.L.L.C.
Hruskoci Peter A.
OTV SA S.A.
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