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{anchor:inlet2}[!Pilot Plant- Sedimentation Sludge Blanket Tank^IMG_0975.jpgEffluent Launder.JPG|thumbnail!|width=200px!|Pilot Plant- Sedimentation Sludge Blanket Tank^IMG_0975.jpgEffluent Launder.JPG]
h5.Effluent Launder
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Orifice
...
Diameter
...
The
...
orifice
...
equation
...
was
...
used
...
to
...
determine
...
the
...
necessary
...
area
...
of
...
the
...
orifice
...
that
...
gives
...
the
...
correct
...
amount
...
of
...
head
...
and
...
matches
...
with
...
an
...
existing
...
drill
...
bit
...
size.
...
The
...
flow
...
rate
...
used
...
in
...
this
...
equation
...
was
...
the
...
total
...
plant
...
flow
...
rate
...
divided
...
by
...
the
...
number
...
of
...
orifices.
...
The
...
minor
...
loss
...
coefficient
...
for
...
an
...
orifice
...
is
...
assumed
...
to
...
be
...
0.63.
...
The
...
head
...
loss
...
term
...
in
...
the
...
equation
...
is
...
total
...
head
...
available
...
less
...
the
...
head
...
loss
...
in
...
the
...
manifold
...
pipe
...
less
...
the
...
velocity
...
component
...
of
...
head
...
loss
...
through
...
the
...
pipe.
...
This
...
area
...
was
...
then
...
converted
...
into
...
a
...
diameter
...
and
...
rounded
...
to
...
the
...
next
...
smallest
...
drill
...
bit
...
size
...
(0.7541cm
...
or
...
19/64").
...
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