Savannah morning news. [volume] (Savannah) 1868-1887, 1885-09-26
no Cr.ARu7Y LONDON SEWAGE.
abs Undertaking on Canvey Island.

f"ft sec A-t"e' f"t '"'f
The disposal of metropolitan sewage
has lang been one OF the problems which
-, -.,is,,l tl,o ,ost er,ireorine, spd
nv -
sanitary tSleht Vl TIE U3y' 4" juno "
1882 SIR William Harconrt deemed II nee
essary to recommend the appointment of
r,vel commission, to inouira into and
-, -, a., s,,t;-o+ b-,t herord tho
va -S..s.--
closh& OF lue inquiry anu the eoAAPie'iou
Of the report 10 apparent steps nave uceh
takcn toward the providing of a remedy
Tor tina ,,ost unaasirahfa eondifion OF
-. - 49, ,,,-.,il,r, -
ta'AS7 VIII "n'0n rs
LONDON are oL.luu"iIy OtNesul iacs "
lace.
ltau. -roi. A. =. Jones and MIR. Bailey
Denton have now metnoriailzed Sir Rich
erg Cf,s- rpu7fndfuy tina right honorable
gentleman al the on sci thatno substan-
usl efort has been made 10 tive practical
ef-srr no fha re,ount nIatf0ns of the com
mission. although their report was sub
lpf1ted six months ago. The design u
the msmorialists embraces the extension
O. The utttfall sewer 10 Capvev island. sir
Io-eru Bazal.-ette.tt will b. remembered
praf,9sed that the outfa1 sbould he at
thames Haven. which Is sanaratad from
Canvev island bv Hole Haven creek. II
is vrenisnd that A good and DracticabIe
scheme for the clsrifcstion Of the sewage
al the point OF outfsu might he devised.
Bv extending the sewer IN NanVav island
instead Of dlscharefur the sewage directly
into the river ii is assumed that the pro-
cess OF treatment would r. Greatly facili-
fated. The ineynorialsts rronosa thattha
sewer should deliver at a bei5bt equal Ia
tnat OF tbe banks or walls bv which can
Vev island is surrounded. about 10 ie-t
above ordinary high tide. The purpose
for which these banks exist is f0 prevent
The flooding Of the island hT outside tidal
water To effect the Qualification OF the
sewage upon the island, inside the banks
il is rr0fSsed to have recourse 10 me-
chauicaI deposition and chemical precipi-
ration whereby the solid portions may be
separated from the LIQUID. and subse-
quently 70 apply the LIQUID % land BY
way Of filtration OF irrigation. separately
OF in combination. Whereby the etiluent
will be brought TO such condition as
will render ID perfectly admissible into
anv tidal waters. 10 is intended to con-
vert the extracted solid on fpr4lizing por- /
tons Of the sewage into salable manure
as Tar as il VIII be profitable to do 30, or /
bv mixture with soil 10 bury the slGdge.
Failing profitable or adva atareous use,
an alternative process would be the burn I
ing OF the perishsble or organic matter. !
Il is pointed out that Canvey island con- I
talns about 400 acres-surely "A sufii /
Client area for the practical accomplish /
ment Of the scheme if space is a desidera- /.
tum. There are WAYS and means, how /
ever OF adding 200 acres TO the island I
81 a comparatively small outlay. The /
proximity OF the island to South Benheet, /
where there exists = station on the Lon /
don, Tilbury and South End railway, Will |
facilitate the construction of tramwav |
10 and across the island for the transmits
sion Of produce, lime and materials by /
land. While The frontage OF the island to |
the river will afford access by water. The
surface of the island within It's banks is
on general level. with only such hollows
and cutters i'm its combination as have
been naturally formed by the of-Aow OF
surface water. TIE height of the land is
from feet TO 9 feet above ordnance, da-
tum, while the surrounding banks have |
been raised about 3 feet higher, so that |
there physically exists within the island, /
between the surface or the land and the |
top Of the inclOeing banks, ready-Inade |
basin capable Of holding. without over /
flow, about 10, 000. 100000 gallons of liq- |
uids. 1t is not anticipated however, that |
this capabilitv will ever be utilized, The |
present quantity of dry-weather sewage |
daily DISCHARGED from the metropolis has |
been taken by the ROYAL Commissioners
10 DE $50, 600 600 gallons. while the future /
dry-weather discharge has been estimated /
bv certain authorities as likely 10 reach |
200 900. 900 gallons. There exists. there /
fore, within the island space sufficient to |
hold for two month"; the present drv- !
weather sewage of London without over |
How and without calling into reouisitiou /
the absorbent mowers of the so1 upon |
which the LIQUID sewage would rest. and
which. with weIl-devieed underdrainago.
would be very effective for iufltra-
ton An area Of from seventy 10
eighty acres within the banks il capable
OF receiving a DAVIS discharge of savage
without overflow.
These are the leading features OF tho
scheme. Ii NAV be added that the memo
riallsts assume A suficienev Of snace on
the island TO receive and clarity the sew
age of the mptronoliq for a century IN
TIE gradual reduction ~ area sip " VIA Wbatey s
FEa intrinsic or of Ia.