US PATENT SUBCLASS 210 / 715
.~.~.~ Utilizing sludge or floc blanket

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

600  DF  PROCESSES {14}
702  DF  .~ Making an insoluble substance or accreting suspended constituents {14}
714  DF  .~.~ Seeding {1}
715.~.~.~ Utilizing sludge or floc blanket

DEFINITION

Classification: 210/715

Utilizing sludge or floc blanket:

(under subclass 714) Process wherein the contact is effected by passage through a suspended or dense bed of agglomerated material.