The Hawaiian gazette. [volume] (Honolulu [Oahu, Hawaii]) 1865-1918, 1914-10-23
Substitutes for Cloth

5uDstituteS lot Cloth 49, .fS tr "a NJ
There have been many. substitutes
or cloth in these filters, among the first
Icing bagasse, but this, was not sue
ess, because Of the dirt carrying 1t
back and forth from the mill. NJ
"Among the bcst known, types IN
lawah are the Sand and Excelsior
iltors. There are quite number Of
hese filters working in the different
,aetories, while, believe in the ma.
ority there arc none Of either kind.
some Of the troubles prohibiting the
more general use of sand filters here,
Is the inability TO obtain the desired
quality Of sand, which may DE rather
expensive, and 1t is mot advisable to
nse any other kind which may differ in
efficiency and spoil the work. 1t of
course may be washed repeatedly, but
there is always a certain amount OF
waste with each washing. Sand filters
are used extensively in the beet sugar
factories in Europe, with remaflxabio
success, but then they can obtain at
moderate cost the silicious sand, which
is so important to the successful opera.
ton of this type of filter The sand
obtained in Hawaii is of coral origin,
land is so porous, that the proper wash
ing of il becomes rather expensive, and
in some factories where II has been
tried the results were 80 unfavorable
owing to the contamination of the
iuiec, that their use had to be aban.
doned. Others again have had very
favorable results which undoubtedly
may be due to tho use of the right quail,
ity of sand
Treatment Of Juice
This is taken from Fred Il. williams
article on Qualification: ~"
"The necessary electrical apparatus
Onsists Of an eleetrode 4'x5'x3" thick,
used in a tank 4,x5'x6' high so as TO
give clear moving space Of g. This
Electrodes arc Suspended over the tank
and moved up and down at speed of
iV q minute This would require an
electric current of 20 volts at 1900 amp.
Three tanks WOULD be required: one
hillng, one emptying and one being
treated, The electrodc works upon a
crane moving from one tank to another.
The up and down motion Is furnished
by an .eccentric--a go II. p. engine
being needed.
''This will treat successfully $50
gallons per minute The best results,
have been found by the addition Of
lime, one gram TO 10000 of liquid before
treatment;,if heated afterwards clear
white solution with an increase of
purity Of at least 5 points will result 4
Cost Of Equipment
"sIt is claimed the great difficulty in.
the capitalization of sucrose ii the III.
organic salts; electricity is the only.
process by which these can be convert,
ed into insoluble salts, throwing them
down in ,preeipitate. The cost of an
equipment would be: Electrodes, $1,000
each, two being needed equals $4,000.
The filters to handle $50 gallons min.
ute would be $4,000.
Another system used in many places
on these Islands is using an automatic
scale Of about 1900 lbs. capacity. tbs
scale discharging into the lime tanks.
Then through heater, heated by vapor
from the preheater. al 5 lbs, heating
the Juice to about 214o, then TO settling
taufs and being drawn off the usual
way. -
Mr. Kinds Opening Address
The following is taken, from Mr..
Hind Is opening address;
''At our last convention the chair
man, Mr. J. r sheedy, welcomed you
Zoe. s