Improvements in the Purification of the Waste Effluent Waters from Manufacturing Processes.
Year: 1891

page_text: Date of Application, 6th Nov., 1891
Complete Specification Left, 5th Sept., 1892-Accepted, 8th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Purification of the Waste Effluent Waters
from Manufacturing Processes.
ERNEST GRIMSHAW, 41 North Road Clayton Manchester, and HARRY
GRIMSHAW, Thornton View Ashton New Road Clayton Manchester, do hereby
declare the nature of this invention to be as follows:-
The waste effluent water from various manufacturing processes such as dyeing,
paper making & other manufactures, contains various matters in suspension &
solution which are difficult to remove by any known methods of precipitation.
The object of this invention is to purify such waste water. This is effected by
the addition thereto of a solution of gelatinous or albuminous materials which are
subsequently coagulated by the further addition of a solution of a salt of iron or
alumina preferably the perchloride of iron. The coagulated material is precipitated
in the insoluble form and by enclosing or adhering to the impurities in the waste
water carries them down as a sediment which may be removed by subsidence or
filtration.
The solutions of gelatinous or albuminous matters which I prefer to use are
(1) Waste liquors from the manufacture of glue, gelatine blood albumen & the
like.
(2) Waste liquors from the tanning and treating of hides.
(3) Solutions of the gelatinous part of sea-weeds.
(1) The soluble
COMPLETE SPECIFICATION.
Improvements in the Purification of the Waste Effluent Waters
from Manufacturing Processes.
We ERNEST GRIMSHAW of 41 North Road Clayton, Manchester and HARRY
GRIMSHAW of Thornton View, Ashton New Road, Clayton Manchester 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:-
The waste effluent water from various manufacturing processes, such as dyeing,
paper making, bleaching & other manufactures contain various matters in solution
& suspension which are difficult to remove by any known means & methods of
precipitation.
The object of this invention is to purify such waste waters.
This is effected by the addition thereto of gelatinous or albumenous materials
which are subsequently coagulated by the further addition of a solution of a salt of
iron or alumina preferably the perchloride or the persulphate of iron.
The coagulated material is precipitated in the insoluble form, and enclosing or
adhering to the impurities in the waste water carries them down as a sediment which
may be removed by subsidence or filtration.
The solutions of albuminous or gelatinous matter which we prefer to use are
(1). Waste liquors from the manufacture of glue, gelatine, leather, blood albumen,
and the like.

page_text: (2). Solutions of the gelatinous parts of seatweeds.
(3). The soluble parts of fæces and similar material.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is-
The use of gelatinous & albuminous materials of the kind above set forth
together with soluble salts of iron and alumina for the precipitation and purification
offwaste waters, substantially as hereinbefore set forth.
Dated this 15th dow of Awoust 1909
ERNEST GRIMSHAW. 1
HARRY GRIMSHAW.