Sewage and other Foul Waters or Matters.
Year: 1885

page_text: Sewage and other Foul Waters or Matters.
I JOHN HANSON of Wakefield in the County of York Manufacturing Chemist
do hereby declare the nature of this Invention to be as follows:-
My Invention relates to the disinfection deodorisation and purification of sewage
or other foul waters or matters by means of free sulphurous acid which I obtain by
the action of an acid (preferably hydrochloric acid or sulphuric acid) upon substances
containing either sulphites or byposulphites or both-I apply my process by
causing the aforesaid substances in a finely divided state or ground with water to
be acted upon by the acid and to be agitated or mixed with the sewage or other
foul water or matters.
The substances suitable for my purpose are Black ash waste or alkali waste or
lime which has been used in the purification of gas the sulphur compounds in
which have been converted into sulphites or hyposulphites or both by natural or
artificial oxidation when treating sewage or foul waters and precipitation of matters
in suspension is desired treatment with lime may be resorted to either before or
after the foregoing process or treatment.
When it is not desired to precipitate matters in suspension but simply to
disinfect and deodorize the sewage or foul waters treatment with lime is
unnecessary.
The compound for use according to my Invention may be prepared for sale or
for subsequent use by treating the finely divided substances with the acid and
enclosing the compound in suitable receptacles.
J. HENRY JOHNSON,
Agent for the said John Hanson,

page_text: Sewage and other Foul Waters or Matters.
I, JOHN HANSON of Wakefield in the County of York Manufacturing Chemist
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:—
My Invention relates to the disinfection deodorization and purification of sewage
or other foul waters or matters by means of free sulphurous acid which I obtain by
the action of an acid (preferably hydrochloric acid or sulphuric acid) upon sub-
stances containing either sulphites or byposulphites or both-I apply my process
by causing the aforesaid substances in a finely divided state or ground with water
to be acted upon by the acid and to be agitated or mixed with the sewage or other
foul water or matters in such manner that as and when the sulphurous acid is
formed or liberated it acts upon the sewage or other foul water or matter to
disinfect deodorize and purify it. The substances suitable for my purpose are
black ash waste or alkali waste or lime which has been used in the purification of
gas, the sulphur compounds in which have been converted into sulphites or
hyposulphites or both by natural or artificial oxidation.
When treating sewage or foul waters and precipitation of matters in suspension
is desired, treatment with lime or other equivalent precipitate may be resorted to
either before or after the foregoing process or treatment.
When it is not desired to precipitate matters in suspension, but simply to
disinfect and deodorize the sewage or foul waters, treatment with lime or other
equivalent precipitates is unnecessary.
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
The disinfection deodorizing and purifying of sewage or other foul waters or
matters by treatment with free sulphurous acid obtained and applied substantially
as hereinbefore described.