...
Previous
...
Research
...
by
...
the
...
AguaClara
...
team
...
in
...
Fall
...
of
...
2005
...
to
...
Spring
...
of 2006
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2006 {float:right|border=2px solid black|width=202} !Picture1lime feeder experiment.jpg|width=200px! h5. Laboratory experimentation with the upflow suspended bed lime feeder during the spring of 2006.{float} |
The
...
lime
...
feeder
...
research
...
team
...
investigated
...
the
...
possibility
...
of
...
building
...
a
...
lime
...
feeder
...
for
...
the
...
AguaClara
...
plant
...
at
...
...
.
...
In
...
the
...
end
...
flocculation
...
at
...
Ojojona
...
was
...
successful
...
without
...
lime
...
addition
...
and
...
the
...
lime
...
feeder
...
project
...
was
...
dropped.
...
Daniel
...
Smith,
...
Fulbright
...
Scholar,
...
is
...
...
...
...
...
...
...
...
...
...
...
.
...
He
...
is
...
routinely
...
measuring
...
pH
...
and
...
alkalinity
...
of
...
the
...
raw
...
and
...
treated
...
waters.
...
From
...
Dan's
...
research
...
we
...
know
...
that
...
low
...
alkalinity
...
waters
...
are
...
common
...
in
...
Honduras
...
and
...
that
...
setting
...
an
...
appropriate
...
alum
...
dose
...
is
...
extremely
...
difficult
...
because
...
addition
...
of
...
a
...
little
...
bit
...
too
...
much
...
alum
...
consumes
...
all
...
of
...
the
...
alkalinity
...
and
...
results
...
in
...
low
...
pH
...
water.
...
At
...
low
...
pH
...
the
...
solubility
...
of
| Latex |
|---|
}\[Al\left( {OH} \right)_3 \]{latex} increases \\ [ANC control |
increases
ANC control with Lime by Amy Yeh and Melina Diaconis
The following analysis needs to be reviewed and converted to analysis in MathCAD. The analysis includes cost comparisons for ANC control using lime,
| Latex |
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with Lime|^ANC control with Lime.docx] by [Amy Yeh|mailto:Amy.Yeh@ch2m.com] and [Melina Diaconis|mailto:mnd25@cornell.edu] The following analysis needs to be reviewed and converted to analysis in MathCAD. The analysis includes cost comparisons for ANC control using lime, {latex}\[Ca\left( {OH} \right)_2 \]{latex} |
,
...
and
...
sodium
...
carbonate
| Latex |
|---|
}\[Na_2 CO_3 \]{latex} |
.
...
The
...
mass
...
of
...
the
...
chemical
...
stocks
...
per
...
day
...
is
...
also
...
calculated.
...
...
...
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spreadsheet|ANC Control^ANC control.xlsm] {float:right|border=2px solid black|width=502} !Picture2Coagulation zones.jpgpng|width=500px! h5. Aluminum solubility diagram showing the importance of maintaining a circumneutral pH for flocculation.{float} |