The Memphis appeal. [volume] (Memphis, Tenn.) 1886-1890, 1886-12-03


by It's sinnosiiies,) above it5 mouth
were entered on for determining II
quality and condition when filtered
by tbs Hyatt method.
The results obtained from these ex
aminstions are exhibited Ia tn
analyses numbered IL, IL, 10, IA, 10
Is Of DR.. SIN arts report.
Since the main inquiry al this poin
was for resolving the utility and eff
cheney OF the Hyatt filter for clearing
the water when in it's woTsl condition
Ave gallons OF it were collected Sep
tembsr 1G, 1886, directly after beat
ing and heavy Taiofall Of several day
durat on, when the river was swoler
AID filed with dfiftwood, aud tLt
water moro tuIbid than Ii had beer
observed in many years. This sample
was sent by Capt Uleary to the writsl
in New York, one part Of which Wa
filtered by the Hyatt method. Equa
parts OF the natural and filtered watel
were then sent to DR.. Smart, at Wash
inRton, for analysis, corresponding II
the two bottles that are now exhibited
TO the COMMITTEES, which we're sent
back to Memphis
Tho filtered water, as will be noticed
is clear and pellucid; the natural
water muddy and repulsive to the
sight. The test was crucial The nat
ufal Watsr contained 146 paris Of solid
matter in 100 900, OF which the filtra'
ton removed II grains 10 each gallon
OR 81 200 pounds to 2, SOC, 900 gallone,
the assumed daily work Of 30-f0ot
filter. II Is not to be understood,
however, that the water would be
pumped for She public supply while
la Ibis anomalous condition, as this
experiment was employed only to test
the efficiency Of the Hyatt process Of
filtration.
"Fron these examinations, says
DR.. Smsr', at appears that the water
OF Wolf river, though extremely un.
slightly la Its turbid state, Is an ex-
cellent wstsr when its suspended mat
teTs have been removed. In contains
only about eight grains OF dissolved
saline substances per gallon, and the
organic ammonia distilled from IL falls
within the arbitrary limits of whole
someone's adopted by most eaaitary
authorities; andif filtration
BE- effected and q clear water furnished
that clear water will be OF satisfsc.
tory qudity for all the purposes OF q
municipal supply. This was demon
strated, not only by the present aus-
lyses, bat by several made in 1870.
II the Hyatt filter can &C.
complish the filtration, so far as the
demands Of quaint ~ are concerned,
the wiier (Dr. SMART is confident
that the altered water, II clear, will
be OF satisfactory purity. .
And, besides removing the suspended
matter and yielding a clear water for
domestic and manufacturing purposes,
the filtration may be conf.
dently expected to free the wa
ter from all suspicion of ma
larisl contamination. Small
streams are obviously better than large
etreRms ss q source Of supply, because
the area drained by them may be
more effectively guarded against dan
geroua examinations. An efficient
supervision Is che only known pre-
vontve Of the invasion OF typhoid
by the wster supply. With such care
exercised over the radioles and course
OF the Wolf river, and the subsequent
q tr don OF the water ss proposed,
pure aud healthful supply may be OBJ.
tained for the city OF Memphis"
FILTRATION 1T THE HYATT METHOD.
The filter plant proposed by the
Newark Filtehng Company for clear
Jog the water OF Wolf river, described
In the report of February %, 1885, has
since that date been recommended for
altering the public water supply Of
Washington, d. o. The examination
OF the works and method In this In
stance, was intrusled TO Capt. T. w.
SymonR Of the Corps Of Engineers Of
the United States army, by Major
General John Newton, Chief OF Engi.
neers, In pursuance Of resolution Of
the United States Senate February 8,
1885 lex. Doc. No. l54). The recon.
mendadon WG8 for a plant capable OF
flltering 10000, 600 gallons per twenty.
four hours, and 1t is believed that an
apraprisdon for carrying out the plan
viii be made by Congress during it's
approaching session. Similar works
are now in successful operation In
and Brunswick, N. j.;
Charleston, w. Va; Belleville, ILL.,,
ETC., and Others are being erected In
other cities.
The writer's own examinations and
observations Of the plan, extending
over q period oil fifteen months, had
satiefed him OF its efficiency, yet since
there had been no experience for de.
termining Its adaptability to the needs
OF Memphis, he required further de.
monstration. To this end the filter
was Auhteoted to the extreme test Of
tho turbid water Of Wolf river, as has
bean related, aud the determination
Of tho mechanical aud hydraulic oapa.
bilities referred TO Mr.. J. ]. r. Croee,
q. Il aud Mr.. A. A. Wilson, M. E. OF
New York, engineers OF established
reputation and high character, who,
IL may bs remarked, began the exami-
nation with characteristic professional
distrust Of innovations.
AuNI topOIbs hto noIoWltu buDmlJ-
ted (B and O OF sppendix) with the
plans and specifications for the Mem
phiB plant proposed by the Newark
FtlteTing Company ID, e, II, G, H, l
Of appeudix), who are to guarantee Its
efiioieucy and ara to receive no com.
pensatlon until its success has been
demonstrated, This plant differs from
the Washington plan IN linly in re-
spect a the method employed for
washing the filter bed, and consists Of
three cylindrical open iron tanks,
twenty feet high and thirty and one
quarter feet In diameter, each co utain-
ing o filter bed Of sand and coke six
feet deep; an apparatus for feeding the
coagulants; standpipe; wrought iron
we'll 100 feet deep aud Ave feet In
diameter, and the required pipes,
valves, gates, etc., all of which are
fully set forth in the specifications.
The proposal EN- braces the aeration OF
the water, aud the guaranteed daily
service 10 for 100000 gallons, filtered.
MIR. Willson In his report expresses
the opinion that "ths general design
aud arrangement OF the details OF this