Improvements in the Treatment of Sewage.
Year: 1890

page_text: Date of Application, 10th Sept., 1890
Complete Specification Left, 9th July, 1891-Accepted, 15 h Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Treatment of Sewage.
We, ALFRED ORLANDO JONES of Cardigan Villa, North Park Road,
Harrogate, in the County of York, Doctor of Medicine, and SAMSON Fox of
The Leeds Forge, New Wortley, in the County of York aforesaid, Engineer and
Iron Master, do hereby declare the nature of this invention to be as follows:-
This invention has reference to improvements in the treatment of sewage
whereby the solid portion thereof is converted into heating or illuminating gas,
and the liquid portion is also utilized in the production of gas, so that it need not
be discharged into streams or other places as heretofore, where it is liable to cause
a nuisance or danger.
According to this invention the solid portion of the sewage is removed in any
suitable or known way from the liquid portion and then charged either alone, or
mixed with other carbonaceous substance or substances such for examples as
coal, or coal dust, coke, town's refuse, sawdust, or soot, into a gas producer
of any known or suitable kind for the production of water or producer
gas, and wherein it is burnt and converted into gas especially suitable for
illuminating and heating purposes. By this means either water or producer gas,
according to the process adopted, can be obtained that contains a greater
percentage of carbon than water or producer gas obtained in the ordinary way and
which therefore is specially adapted for use for the purposes mentioned. The
liquid portion of the sewage is utilized by converting it into steam which together
with any noxious or other gases evolved from the liquid treated, is introduced into
a gas producer for the production of water gas, in lieu of or in addition to the
steam produced from ordinary service water as is now usual. Thus by this
invention sewage can be completely utilized in the production of valuable
products.
Dated this 10th dox of Sentember 1800
COMPLETE SPECIFICATION.
Improvements in the Treatment of Sewage.
We, ALFRED ORLANDO JONES, of Cardigan Villa, North Park Road,
Harrogate, in the County of York, Doctor of Medicine, and SAMSON Fox, of
The Leeds Forge, New Wortley, in the County of York aforesaid, Engineer and
Iron Master, 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 :-
and
This invention has reference to improvements in the treatment of sewage
whereby the solid portion thereof is converted into heating or illuminating gas,
the liquid portion, or a part thereof, is also utilized in the production of gas so
that it need not be discharged into streams or other places as heretofore in a
condition where it is liable to cause a nuisance or danger.

page_text: According to this invention the solid portion of the sewage is first removed in
known or suitable way from the liquid portion, and
carbonaceous substance or substances,
any
then
charged, either
alone or mixed with other
such for examples
as coal, coal-dust or smudge, coke, town's refuse, sawdust, or sunt,-into a gas
producer of ordinary construction for the production of water gas or producer gas,
and wherein it is burnt and converted into gas especially suitable for illuminating
heating purposes.
then added, it may be either in a dried state, or in a damp state, and the blowing
continned, additional
and
without admixture with other
starting, charged with fuel
state of bright incandescence by a blast of air.
When
the solid
carbonaceous
portion
matters,
of
the
sewage
the gas
is
producer
to
be
burnt
is, at
such
as
coal
or
roke,
which
is
ignited
and
raised
to
a
The solid portion of the sewage is
time to time as the
solid
quantities of
combustion of that
portion of the sewage is burnt
solid
in
80
of
say from 20 to
sludge may be
matter such
sewage only being afterwards added from
previously introduced proceeds. When the
admixture with other carbonaceous matter,
80 parts by weight of the solid but damp portion of the sewage or
mixed with say from to 20 parts by weight of other carbonaceous
for example as either the substances hereinbefore mentioned, or of
a mixture of such substances. It will however be obvious that the proportions can
he varied within wide limits. In either case the combustion of the charge in the
producer is first effected by the air blast, and the resulting producer gas is passed
through a scrubber to remove dust or suspended impurities therefrom, and then
to a gas holder whence it is passed through a purifier to remove ammonia and tar;
it may afterwards be passed either to another gas holder or direct into a gas main
for use. The scrubber and purifier can be of any known or suitable kind. When
the charge in the producer is raised to a state of intense incandescence, the air
blast is stopped, and a jet of steam turned on, which in passing through the
incandescent mass, produces water-gas as well understood. This water gas is also
passed through a serulber, gas holder and a purifier and thence either to another
gas holder or direct into a main for use. When the temperature of the charge is
reduced, say to a low red heat, the steam jet is cut off and the air blast again
turned on as before, these operations being repeated from time to time as well
understood by those skilled in the art of producing water gas.
The liquid portion of the sewage that is to say, the effluent water separated
from the solid portion, is heated in a boiler and thereby converted into steam,
which, together with any noxious or other gases evolved from the water is
introduced into the gas producer alternately with air as hereinbefore described for
the production of water gas. As there will be a larger quantity of effluent water
than can be advantageously utilized in the production of steam for use in the gas
producer, the excess when sufficiently purified which may be done in the usual way,
can be discharged into a stream or other place.
Although it is highly advantageous to use the effluent water for generating the
required steam to produce the water-gas, it will be evident that other water might
be used for the purpose.
The ammonia and tar separated from the gas by the purifiers can be recovered
in the usual manner to prepare the same for sale. These substances form valuable
bye-products. The producer gas can be used for various heating purposes, and
the water gas can also be used for heating purposes, or, by burning it in contact
with refractory bodios, it can be used for illuminating purposes, as well understood.
Thus by this invention, sewage sludge can be completely utilized in tho
production of valuable products and the difficulty be overcome that has heretofore
been experienced in treating sewage in a safe and economical manner.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what wo
laim is

page_text: 2. Utilizing sewage to produce gas for heating or illuminating purposes as
above set forth.
Dated this 9th day of July 1801
A. ORLANDO JONES, M.D.
W. Lloyd Wise,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants.