An Improved Mechanical Arrangement for Causing Aeration or the Absorption of Gases by Liquids.
Year: 1899

page_text: Date of Application, 27th Jan., 1899
Complete Specification Left, 27th Nov., 1899-Accepted, 30th Dec., 1899
Date of Application, 27th Jan., 1899
Complete Specification Left, 27th Nov., 1899-Accepted, 30th Dec., 1899
PROVISIONAL SPECIFICATION.
An Improved Mechanical Arrangement for Causing Aeration or the
Absorption of Gases by Liquids.
We, JAMES ALFRED WANKLYN, of 6, Derby Villas, New Malden, Surrey,
Professor of Chemistry, and WILLIAM JOHN COOPER, of 6, Derby Villas, New
Malden, Surrey, Consulting and Analytical Chemist, do hereby declare the nature
of this invention to be as follows:-
Our invention, although it is generally applicable to the absorption of gases
by liquids, has a special application to aëration or oxygenation of sewage for
which there is most pressing and urgent need in view of the welfare of the
public.
Our improvement is founded on the recognition of the principle that absorption
of gases by liquids takes place at the surface of the liquid and that portions of
the liquid at a distance from the surface require to be placed in contact with liquid
already saturated if the whole mass of liquid is required to be rapidly aërated or
saturated with any gas.
In order to cause aëration of the whole mass of the liquid the plan we propose
consists in the continual removal of the uppermost layer of the liquid and the
continual putting of that uppermost layer down to the bottom of the vessel or
vessels containing the liquid: we feed at the bottom and run off from the top.
Assuming that it were required to aërate sewage contained in a tank or reser-
voir 100 feet in length 25 feet broad and 7 feet high, the following is our improved
mechanical arrangement.
We divide the tank or reservoir into three or more compartments by means
of partitions across the tank.
One partition is placed across at 33 feet from one end, another partition at
66 feet from the same end and the third at 99 feet from the same end. These
three partitions are to be joined to the bottom and sides of the tank, but the
first is to stop short 4 inches from the top of the tank the second is to stop
short 8 inches, and the third is to stop short 12 inches from the top.
The effect of these partitions arranged in this manner is to divide the tank into
three main sections No. 1, No. 2, and No. 3, and a narrow end-space six inches
in width.
Pipes should be run from near the bottom of this end-space so as to allow free
exit for liquid and pipes should be let into section No. 1 so as to allow liquid
to enter at the bottom of section No. 1. In order to complete the arrangement
two other partitions are required. These partitions are joined only to the two
sides of the tank and stop short six inches from the bottom of the tank reaching
however to the top of the tank. The one is placed 33 feet from the end of the
tank and the other 66 feet from the same end of the tank. By these disposi-
tions of the partitions or septa we convert the tank or reservoir into our improved
aërator. If the sewage be forced through the pipes entering at the bottom of
section No. 1 the liquid will gradually rise in section No. 1 until it fills section
No. 1 up to 4-inches from the top of the tank then the liquid will overflow to the

page_text: bottom of No. 2 which will be gradually filled up to 8 inches from the top, and
No. 3 will in like manner become charged up to 12 inches from the top and the
liquid will finally run down the end space and out of the tank. Different dimen-
sions may be used..
1 11
T
11.
An Improved Mechanical Arrangement for Causing Aeration or the
Absorption of Gases by Liquids.
We, JAMES ALFRED WANKLYN, of No. 6, Derby Villas, New Malden, Surrey,
Professor of Chemistry, and WILLIAM JOHN COOPER, of No. 6, Derby Villas, New
Malden, Surrey, Consulting and Analytical Chemist, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:.
Our invention although it is generally applicable to the absorption of gases
by liquids has a special application to aeration of sewage. Our invention is
founded on the recognition of the principle that absorption of gases by liquids
takes place at the surface of the liquid and that portions of the liquid at a distance
from the surface require to be placed in contact with liquid already saturated if
the whole mass of liquid is required to be rapidly aërated or saturated with any
gas. In order to cause aëration of the whole mass of the liquid our plan consists
in the continual removal of the uppermost layer of the liquid and the continual
putting of that uppermost layer down to the bottom of the vessel or vessels con-
taining the liquid: we feed at the bottom and run off from the top.
Assuming that it were required to aërate sewage contained in a tank or reser-
voir 100 feet in length, 25 feet broad and 7 feet high the following is our improved
mechanical arrangement.
We divide the tank or reservoir into three or more compartments by means of
partitions across the tank.
One partition is placed across at 33 feet from one end, another partition at
66 feet from the same end, and the third at 99 feet from the same end. These
partitions are to be joined to the bottom and sides of the tank, but the first is to
stop short 4 inches from the top of the tank; the second is to stop short 8 inches
from the top and the third is to stop short 12 inches from the top.
The effect of these partitions, arranged in this manner, is to divide the tank
into three main sections No. 1, No. 2 and No. 3, and a narrow end-space six
inches in width.
Pipes should be run from near the bottom of this end-space so as to allow free
exit for liquid and pipes should be let into section No. 1 so as to allow liquid to
enter at the bottom of No. 1.
In order to complete the arrangement two other partitions are required.
These partitions are joined only to the two sides of tank and stop short 6 inches
from the bottom of the tank reaching, however, to the top of the tank. The one
is placed 33 feet from the end of the tank, and the other 66 feet from the same
end of the tank.
By these dispositions of the partitions we convert the tank into our improved
acrafor. If sewage, or other liquid, be forced through the pipes entering at the
hottom of section No. 1 the liquid will gradually rise in section No. I until it
fills section No. 1 up. to 4 inches from. the top of the tank, then the liquid will

page_text: overflow to the bottom of No. which will be gradually filled up to 8 inches off
the top, and No. 3 will in like manner become charged up to 12 inches off the
top, and the liquid will finally run down the end space and out of the tank.
Different dimensions may be taken.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed we declare that
what we claim is;-
The improved aërator constructed substantially as herein described, in which
there is a succession of shielded waterfalls with continual flow.
this Tanter careanth day November 1899
JAMES ALFRED WANKLYN.
WILLIAM JOHN COOPER.