Improvements in Sterilizing and Purifying Liquids.
Year: 1895

page_text: Date of Application, 2nd Mar., 1895
Complete Specification Left, 12th Nov., 1895-Accepted, 21st Dec., 1895
PROVISIONAL SPECIFICATION.
Improvements in Sterilizing and Purifying Liquids.
I PHILIBERT BOISSERAND of 68 Chaussée d'Antin Paris in the Republic of
France do hereby declare the nature of this invention to be as follows :-
This invention has for its object to purify and sterilize liquids by the addition
thereto of a permanganate of lime or of potash with or without the higher oxides
of manganese.
As an example, I add to ten tons of river water say four ounces of permanganate
of lime and four ounces of peroxide of manganese obtained by the Weldon process;
under these conditions the organic matters contained in the water will be found to
be oxidized and the bacteria destroyed,
To obtain the purifled and sterilized liquld in a clear condition it is merely
necessary to filter it through sand or charcoal or any other suitable material or
the filtering may be dispensed with and the liquid may be merely decanted.
When it is desired to treat residual waters such as drain water or the like
according to this invention potassium permanganate is preferably employed in the
place of permanganate of lime, and in this case without the addition of the
manganese. To obtain the liquid in a clear condition decantation is sufficient
without filtration. The resulting liquid though slightly alkaline will be found to
be very efficiently sterilized.
Dated this 2nd day of March 1895.
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents,
COMPLETE SPECIFICATION.
Improvements in Sterilizing and Purifying Liquids.
I, PHILIBERT BOISSERAND, of 58 Chaussée d'Antin, Paris, in the Republio
of France, do hereby declare the nature of my 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 has for its object to purify and sterilize liquids by the use of a
permanganate of lime or of potash or the like with or without the higher oxides of
manganesc.
As an example, I add to ten tons of river water say four ounces of permanganate
of lime and four ounces of peroxide of manganese obtained by the Weldon process;
under these conditions the organic matters contained in the water will be found to
be oxidized and the bacteria destroyed. To obtain the purified and sterilized
liquid in a clear condition it is merely necessary to filter it through sand or charcoal
or any other suitable material or the filtering may be dispensed with and the liquid
may be merely decanted.
When it is desired to treat residual waters such as drain water or the like
according to this invention potassium permanganate is preferably employed in the
place of permanganate of lime and in this case without the addition of tho

page_text: manganese. To obtain the liquid in a clear condition decantation is sufficient
without filtration. The resulting liquid though slightly alkaline will be found to
be very efficiently sterilized.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. For purifying and sterilizing liquids the use of permanganates of lime, potash,
or the liko, in combination with the higher oxides of manganese substantially as
described.
2. The purification and sterilization of river water or of drain water, substantially
in the manner described in the foregoing examples.
Dated this 12th day of November 1895.
JOHNSONS & WILLCOX,
Agents.