Improvements in the Deodorisation and Disposal of Sewage and in Apparatus therefor.
Year: 1887

page_text: Date of Application, 9th Aug., 1887
Complete Left, 8th-May, -1888
Complete Accepted, 8th June, 1888
Improvements in the Deodorisation and Disposal of Sewage and in
Apparatus therefor.
We, ARTHUR HENRY CURLING, of Ravenscroft, Clifton Road, Norbiton, in the
County of Surrey, and JAMES DUNBAR, of 9, Lena Gardens, West Kensington Park,
in the County of Middlesex, Engineers, do hereby declare the nature of this invention
to be as follows:-
This invention relates to an improved method of and means for deodorising sewage
and the like putrescible or refuse matters, and rendering the same fit for transportation
with a view to disposal on land or otherwise.
In sewage purification, as distinguished from irrigation, works, the principal
obstacles to economical treatment have been due to the difficulty of completely
separating the liquid from the solid matters and to the cost of reducing the sludge to
a condition suitable for enabling it to be transported to localities where it may be
utilised for manurial purposes, or otherwise disposed of.
According to our improved method of treatment, the sewage is received in tanks
wherein it may, if preferred, be subjected to the action of precipitating agents; and
whence the effluent water, when sufficiently purified, may be discharged to a
neighbouring water-course. The concentrated sewage or sludge is thereupon tapped
off into boxes or trays and conveyed to a freezing house or chamber maintained at a
suitably low temperature by any known means. The contents of the boxes or trays
when completely frozen are removed and conveyed forthwith to the land to be
manured, or out to sea, or stored in a refrigerating chamber until they can be
conveniently disposed of.
3
By the above described means, the sewage, whether concentrated or otherwise, is
converted into frozen blocks, practically deodorised, and adapted for transport by land
or sea.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C.,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in the Deodorisation and Disposal of Sewage and in
Apparatus therefor.
We, ARTHUR HENRY CURLING, of Ravenscroft, Clifton Road, Norbiton, in the
County of Surrey, and JAMES DUNBAB, of 9, Lena Gardens, West Kensington Park,
in the County of Middlesex, Engineers, 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 improved method of and means for deodorising sewage
and the like putrescible or refuse matters and rendering the same fit for transportation
with a view to disposal on land or otherwise.
In sewage purification-as distinguished from irrigation-works, the principal
obstacles to economical treatment have been due to the difficulty of completely
separating the liquid from the solid matters and to the cost of reducing the sludge to
a condition suitable for enabling it to be transported to localities where it may be
utilised for manurial purposes or otherwise disposed of.
According to our improved method of treatment, sewage is received in tanks,
wherein it may, if preferred, be subjected to the action of precipitating agents, and
whence the effluent water, when sufficiently purified, may be discharged to a
neighbouring water-course. The concentrated sewage or sludge is thereupon tapped
off into trays, moulds or other suitable receptacles, and conveyed to a freezing house
or chamber maintained at a suitable low temperature by any known means. Or, the
sewage or sludge-charged moulds may be plunged in a tank or tanks containing
freezing mixture, as commonly practised in the manufacture of ice. The contents of
the trays or moulds, when completely frozen, are removed and conveyed forthwith to
the land to be manured, or out to sea, or are stored in a refrigerating chamber until
they can be conveniently disposed of.
By the above described means, the sewage, whether concentrated or otherwise, is
converted into frozen blocks practically deodorised and adapted for transport by land
or sea.
Having thus particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we claim :-
:-
In the treatment, for the purpose of disposal, of sewage, sewage-sludge or similar
liquid or semi-liquid compounds of a putrescible nature, freezing the same into blocks,
whereby deodorisation is effected and the mass adapted for transport in a solidified
condition.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C.,
Agent for the Applicants.