liquor, passes on to the next stage of
The cake that is sluiced off the pressure filters goes
to a second stage of filtration, where it is desweetened
by the addition of wash water. cake removed
as a waste product and sweet water generated
in the desweetening process is utilized elsewhere in
the refinery, generally for sugar.
A more recent development is the utilization of
a single membrane plate filter for both pressure filtration
and cake desweetening. This leads to a significantly
simplified plant and is likely to be a more
commonly used option in future.
Sizing and design of saturators. Two or three