A Process of and Apparatus for the Purification of Water and other Liquids.
Year: 1898

page_text: Date of Application, 10th Aug., 1898-Accepted, 1st Oct., 1898
COMPLETE SPECIFICATION.
A Process of and Apparatus for the Purification of Water and other
Liquids.
I, MARIUS OTTO, of 18, Avenue de Neuilly, Neuilly-sur-Seine, in the Republic
of France, Doctor of Science, do hereby declare the nature of this invention. and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
This invention relates to an apparatus intended for the purification of water
on a commercial scale by submitting it to the action of ozone; but the apparatus
may also be utilised for submitting liquids of any kind to the action of ozone.
My improved apparatus enables the following advantages to be obtained;
1. The water and the ozone enter into intimate contact.
2. The duration of the action of the ozone may be readily regulated and like-
wise the relative volumes of water and ozone taking part in the reaction.
3. The water, when once it has been treated, is protected from any fresh
pollution.
In the accompanying drawings,
Figure 1 shew's the apparatus half in section and half in elevation.
Figure 2 represents the said apparatus one half in plan and the other half in
horizontal section upon the line X X of Figure 1, and
Figure 3 is a sectional view of the emulsor in which the intimate mixing of
the water and ozone takes place.
The apparatus may be arranged directly in a filtering reservoir beneath the
water outlet.
Within the cylindrical vessel C is arranged another cylinder C3 which is open
at its upper portion.
The water enters the apparatus through the sieves G1 G2
the ozone is
admitted through the pipe 0 and the crown U which distributes it to the
emulsers E 2 E³
Each of these emulsers is constituted by a vessel E Figure 3 of cylindrical or
spherical form, provided with a lateral orifice 02 in this vessel fit one within
the other two tubes or nozzles 01 03 of conical shape. The current of ozonated
oxygen or of ozonated air enters the emulser through the orifice 01 and issues
through the orifice 03 carrying with it a current of water which, in the form
of a perfect emulsion, whirls round in the space comprised between the cylinders C
and C. This current is broken up by the plates T¹ T2. which form baffles.
The effect of the emulsers may be increased by the addition of mechanical
agitators serving to stir vigorously the mixture of water and ozone.
The destruction of microbes and of organic substances is accompanied by the
production of very remarkable phenomena of phosphoresence; the water becomes
luminous and retains its luminosity for several seconds.
The excess of air or of ozone escapes through the tubes arranged at the
upper portion of the apparatus and provided with funnel-shaped discharge

page_text: apertures P1 P2 P³. The ozonated water rises above the upper edge of the
cylinder Cand escapes through the pipe S which communicates directly with
the distributing mains.
By means of extremely simple accessory appliances, a certain number of
emulsers only may be caused to operate, the supply of water to each of them
being either partially or totally cut off.
The water is prevented from being forced back into the ozone supply pipe 0
and into the exhaust tubes t¹ 3 by means of suitable valves.
The water is not able to reach the distributing mains except by passing through
the emulsers; it is thus certain that each particle of water will be submitted
to the action of the ozone.
The period during which the water and the ozone remain in contact depends
upon the height of the annular space comprised between the cylinders C¹ C³.
If it is desired to arrange my apparatus outside the filtering reservoir, it is
only necessary to conduct the water to the emulsers through a circular conduit.
In such a case the air and the ozone escape freely or are collected for the purpose
of again being submitted to the action of the electric effluvium.
This arrangement may be adopted when the impurity of the water is such that
it is necessary to arrange several apparatus in series.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. A process for the purification of water upon a commercial scale or of any
liquid by means of ozone, characterised by the employment of emulsers arranged
at the bottom of an apparatus in which a constant circulation is maintained for
the admission of the liquid to be purified, the flowing out of the pure liquid and
the evacuation of the excess of the purifying gas.
2. For the application of the above process, the apparatus described above and
represented in the drawing.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.