The weekly Iberian., 1909-02-27
INTERPRETATION
BY OZONE,

|
\ country, on account of the cost y
+ operation. This obstacle has no,
been largely removed hy improve
m"nfs IN the machinery. MIR. $
II. Hart tells IN 1He IXfcffjcH He
rfcr (ChlcaGo, January y Of .
small plant installed IN the tow
Oi Lindsay, Ontario, where $40,
600 gallons a day are purified al
IN initial cost Of ". 600, with III,
expenditure Of not more than ten
horse power The ozone, ~ il
customary in III processes of this
kind, is produced by HE action Of
u high tension electric Discharge
on the oxygen Of the air, but the
air ~ handled and comprcst 10 Dc
prlve i partially Of its moisture
entirely by the action of the llow
''s- ""''i itS'ii i nc compress
SION takes place in IN underground
chamber into which .he air is fore
g! by the aspIrating action Of the
rushing current. and it ~ then sent
through the ozonizcrs under pres
sure and forced into the water to
do its work Of the oxidizlng i'm
pnritics and killing harmful germs.
Says Mr.. Hart:
"TI'is development is Of cspc-
clal interest to small electric pow
er plants, since il offers new
lield for development and consump
ton Of power in small units in
many Of the large cities in coI-
junction with the water sys-
tenn. Practically no watcrworks il
too small TO install such u plant,
and, while the current consump-
ton is small. il is. as i general
thing, absolutely continuous and
would naturally he obtained from
the lighting service Of The town il
preference 10 the installation az
an individual plant for tins pttr
pose. Its development IN this
country, however, is only ii il~
inception, but he general use ui
ozone for a number Of p1rifyin
purposes has received tremen
do"s impetus by virture OF tins
development and application"
The process is described in more
detail in another article rs follows.
"In the apparatus (shown in an
} direct or alternating
current casually Of 10 vo'ts) il
taken from the ordinary electric
light circuit and by transformer
is slept mp to about 5000 volts.
This high voltage produces IN
the OzOnizer, a box containing al
ternate plates Of aluminium and
q silent clcctrict dis
charge, converting the ordinary
atmospheric air drawn through
The OzOnizcr into ozone.
"The water to be treated flows,
under its own pressure, from the
city mains through the plpe to
ts highest point, and in descending
he water draws the ozone, by
means Of an aspirator, from the
,zonizer, the wator and ozone
thoroughly com:lingling. This
sctl0n is constant during the pro
,ress of the water in its down
ward descent into the glass sterll.
,er where the ozone ascends in
Millions Of minute bubbles, com
ng into intimate contact with
very particle Of the water and
completely destroys all the dis
'ase- producing bacteria contain
ID in the water. The ozOnlzcd
vater then finds an outlet at the
Op of the sterilizer and may be
into any suitable stor-
age-receptacle for future use.
"The reason for this destruction
f the bacteria by the ozone is
cry simple. Chemical analysis
t the bodies Of bacteria show that
hey are made up of about 81 per
ent. of water and 16 per cent. Of
Olids. OF these solids more
han half is made up of carbon
he strong affinity Of oxygen for
arbOn is well known. Ozone
eing a concentrated form or
xygen, has an even greater aflini-
y for carbon; and the moment
ac'llas comes in contact with
ubble Of OzOnized air the carbon
t it's body combines oxygen, and
he bacillus is consumed as com
letely as il it had touched a
ame. indeed. the rIoress is