US PATENT SUBCLASS 210 / 661
.~.~ By passing through suspended bed

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

600  DF  PROCESSES {14}
660  DF  .~ Ion exchange or selective sorption {8}
661.~.~ By passing through suspended bed

DEFINITION

Classification: 210/661

By passing through suspended bed:

(under subclass 660) Process wherein the liquid being treated is passed through a mass of particulate separatory material suspended within a definite zone by the velocity of the liquid in a direction opposite to the force of gravity (e.g., a fluidized bed).

SEE OR SEARCH THIS CLASS, SUBCLASS:

715, for passing a liquid through a sludge or floc blanket.