IMPROVEMENTS IN TREATING SEWAGE WATER AND OTHER FOUL LIQUIDS FOR THE PURPOSE OF PURIFICATION, AND IN THE MANUFACTURE OF MANURE
Year: 1874

page_text: LETTERS PATENT to Augustus Edward Schmersahl, of Manchester,
in the County of Lancaster, Manufacturing Chemist, for the In-
vention of "IMPROVEMENTS IN TREATING SEWAGE WATER AND OTHER FOUL
LIQUIDS FOR THE PURPOSE OF PURIFICATION, AND IN THE MANUFACTURE OF
MANURE."
Scaled the 5th January 1875, and dated the 11th July 1874.
PROVISIONAL SPECIFICATION left by the said Augustus. Edward
Schmersahl at the Office of the Commissioners of Patents, with
his Petition, on the 11th July 1874.
I, AUGUSTUS EDWARD SCHMERSAHL, of Manchester, in the County of
Lancaster, Manufacturing Chemist, do hereby declare the nature of the
said Invention of "IMPROVEMENTS IN TREATING SEWAGE WATER AND OTHER
FOUL LIQUIDS FOR THE PURPOSE OF PURIFICATION, AND IN THE MANUFActure of
MANURE," to be as follows:-
My process consists in treating the sewage water or other foul liquid
with a mixture of acids, say, two parts of diluted sulphuric acid and one

page_text: part of hydrochloric acid. Of this mixture I use only sufficient to make
the sewage or other liquid slightly acid to decompose all matters in
combination or solution contained therein; or instead of the acid
mixture herein-before mentioned I employ either phospho-muriate of lime,
commonly called bone liquor, or chloride of manganese, for the same
purpose, and then I add to the so treated sewage or other foul liquid
sufficient milk lime to neutralize the acid again. After agitation a
precipitate immediately falls, and the effluent water resulting is clear
and without smell.
The proportions herein-before stated are varied according to the nature
of the sewage or other foul liquid under operation.
By this treatment I produce a precipitate containing all the useful
matters in combination, or solution, or suspension in the sewage or other
foul liquid; and which precipitate I employ as manure, or in the manu-
facture of manure when mixed with other suitable ingredients.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Augustus Edward Schmersahl in the Great Seal
Patent Office on the 11th January 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, AUGUSTUS
EDWARD SCHMERSAHL, of Manchester, in the County of Lancaster,
Manufacturing Chemist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her
Letters Patent, bearing date the Eleventh day of July, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors; give
and grant unto me, the said Augustus Edward Schmersahl, Her special
licence, that I, the said Augustus Edward Schmersahl, my executors,
administrators, and assigns, or such others as I, the said Augustus Edward
Schmersahl, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within tlie United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Inven

page_text: tion for "IMPROVEMENTS IN TREATING SEWAGE WATER AND OTHER FOUL LIQUIDS
FOR THE PURPOSE OF PURIFICATION, AND IN THE MANUFACTURE OF MANURE,"
upon the condition (amongst others) that I, the said Augustus Edward
Schmersahl, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Augustus Edward Schmersahl, do
hereby declare the nature of my said Invention, and in what manner
the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
-
My process consists in treating the sewage water or other foul liquid
with a mixture of acids, say, two parts of diluted sulphuric acid and one
part of hydrochloric acid. Of this mixture I use only sufficient to make
the sewage or other liquid slightly acid to decompose all matters in
combination or solution contained therein. Although I prefer to mix
the acids together in the proportion stated, more or less, previous to
treating the sewage water or other foul liquid therewith, it will be readily
understood that these acids may be added separately to the sewage
or other foul liquid; or instead of the acid mixture herein-before
mentioned I employ cither phospho-muriate of lime, commonly called
bone liquor, or chloride of manganese, for the same purpose, and then I
add to the so treated sewage or other foul liquid sufficient milk lime to
neutralize the acid again. After agitation a precipitate immediately
falls, and the effluent water resulting is clear and without smell.
The proportions herein-before stated are varied according to the
nature of the sewage or other foul liquid under operation.
By this treatment I produce a precipitate containing all the useful
matters in combination, or solution, or suspension in the sewage or other
foul liquid; and which precipitate I employ as manure, or in the manu-
facture of manure when mixed with other suitable ingredients.
Having thus particularly described and ascertained the nature of this
my said Invention, together with the best methods with which I am
acquainted for carrying the same into practical effect, I desire it to be

page_text: understood that I claim, treating sewage or other foul liquids in the
manner and for the purpose substantially as hercin-before described.
In witness whereof, I, the said Augustus Edward Schmersahl, have
hereunto set my hand and seal, this Seventh day of January,
in the year of Our Lord One thousand eight hundred and seventy-
five.