An Improved Filter for Sewage Effluent and the like.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
An Improved Filter for Sewage Effluent and the like.
CHARLES FELL 95 Lichfield Street Hanley Staffordshire Artificial Manure
Manufacturer I do hereby declare the nature of this invention to be as follows:-
A system of filtering so as to dispense with the necessity of irrigation. The
effluent after leaving the settling tanks, I allow to pass through a series of trays,
in an enclosed chamber, the trays being covered with some suitable filtering
Inatter, such as sand, polarite, or magnetic carbide of iron, the ammonia and
organic matters contained in the effluent, are converted into nitrates and nitrites.
By this means of filtration I am able to produce an effluent free from pollution.
Date 19th of October 1906
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for Sewage Emuen
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CHARLES FELL 95 Lichfield Street Hanley Staffordshire Artificial Manure
Manufacturer I 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:-
A system of filtering so as to dispense with the necessity of Irrigation. The
purification of sewage effluent, the effluent after leaving the settling tanks, I
allow to pass through a series of trays or boxes, in an enclosed chamber, the boxes
containing some suitable filtering matter, such as sand, polarite, magnetic carbide
of iron, or Chloride of Lime, the ammonia and organic matters contained in the
effluent are converted into nitrates and nitrites. By this means of filtration, I
am able to produce an effluent free from pollution. The trays or boxes I place
either horizontally or vertically. I prefer to place them horizontally. I will
more particularly describe in what manner my, said invention may be carried into
effect In the channel along the front of the settling tanks, where the sewage
comes in, I place perforated zinc boxes, in which I put Chloride of Lime, the crude
Sewage having then to pass through these boxes before going into the tanks, this
causes both precipitation and purification, then right across the other end of the
same tanks I place finely perforated zinc boxes again, through which the effluent
passes, the size of these boxes are six inches wide, and nine inches deep and in.
these I place Chloride of Lime, by these means, and using about eighty pounds
of Chloride of Lime to every million gallons of sewage, I am able to produce an
inodorous and satisfactory effluent, the effluent being also free from sediment,
does away with the necessity of irrigation. The accompanying drawing will still

page_text: more particularly describe in what manner my said invention may be carried into
effect. Figure 1 represents a pair of sewage settling tanks. Figure 2 is a plan
showing side view of Figure 1. Figures 3 & 4 are longitudinal sections of the
perforated zinc boxes. The sewage is conveyed by a 12 inch pipe at point E and
delivered into channels C passed through perforated zinc boxes BB viz. Fig. 3
containing Chloride of Lime, then through 9 inch pipes placed at equal distances
in walls of tanks D D. The flow of the sewage following the course indicated by
the arrows, and finally passing over the lips of the tanks at AA on which are the
perforated zinc boxes (Fig. 4) containing Chloride of Lime, the same being fixed
on the whole length of lips of tanks, the sewage then flows into channel F. The
perforated zinc boxes Fig. 4 are 6 inches wide and 9 inches deep.
Channel G is only used in case the tanks DD require repairs, in that case the
crude sewage is then allowed to flow direct through channel G without being
filtered.
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:
1st. A filter for the purification and precipitation of sewage effluent, consisting
of perforated zinc boxes, containing Chloride of Lime, and the mode of application.
2nd. In a filter made of finely perforated zinc boxes, and placed right across the
sewage settling tanks, the size of the boxes are, six inches wide and nine inches
deep, and the quantity of Chloride of Lime I put in the boxes is eighty pounds to
every million gallons of sewage effluent.
3rd. In a filter made of finely perforated zinc boxes, containing Chloride of
Lime, for the purification of sewage effluent, substantially as herein before
described.
Dated this 9th day of July One Thousand eight hundred and ninety seven.