Clinton News-Record, 1974-06-20, Page 10OFFICIAL OPENING
Town of Clinton
Water Pollution Control
Plant
3 P.M.
June 26, 1974 no Victoria Terrace
Quoin
Speaker Mr. Douglas McTavish
Ministry of the Environment
Everyone Cordially invited
Guided Tours Will Follow Ceremony
C, C. Proctor e„ SyttiOas
Clark Mayor
ecora±n9 [to.
Clinton, Ontario
DRAPERIES PAINTS WALLCOVERINGS
Congratulations To The
Town of Clinton on Their New
Pollution Control Plant. We
Pay Tribute To Their Foresight
and Genuine Community Concern,
R.J. Campbell
Seof orth S27.0675,. R.R.
to the
TOWN OF CLINTON
ON THE OPENING OF THEIR
MODERN, ENLARGED,
TREATMENT PLANT
As one of your Huron County neighbours we
supply Duneold Hypalon flexible liners for all
types of industry throughout Canada.
. . and now Clinton has selected our
material as part of its safe economical
sewage treatment system,
DUNLINE LIMITED
HURON PARK, ONTARIO
Next Wednesday after-
noon, June 26, Clintonians
will be able to see what hap-
pens after they flush the
toilet, as an efficial opening
will be held at Clinton's
new sewage $750,000 treat-
ment plant or pollution con-
trol facilities.
The new plant, one of the
most modern and
sophisticated in Ontario,
will be officially opened at 3
p.m. with tours of the
facility to follow.
The new plant incor-
porates a modification of
the activated sludge process,
known as contact
stabilization, It basically
consists of screening the in-
coming sewage, contact
aeration, final settling, ef-
fluent filtering, chlorination
and aerobic sludge
digeStion.
In order to permit
maximum flexibility for
future expansion, the new
treatment units have, in
some rases, been selected to
accept then anticipated
flows and have been located.
to facilitate the installation
of additional future works.
The average daily design
flow is 400,000 gallons per day.
Raw sewage from the
town is collected by a SerieS
Of gravity sewers leading to
a main pumping station on
and subsequent discharge
into the. Bayfield River.
Screening
The raw sewage enters the
plant influent works and
passes through a shredding
device known as a bar-
minutor which
automatically cuts up larger
particles and returns them
to the waste flow. This en-
sures suitably sized particles
that are easily handled in
subsequent treatment units.
Grit Removal
Following barminution,
the raw sewage enters the
air grit tank where the grit
and sand particles are
separated from organic mat-
ter and removed from the
waste flow. The tank design
is such that the organics,
which are lighter than the
grit, are retained in the,
wasteflow for further treat-
ment,
The settled grit in the
tank hoppers is continually
pumped (air-lifted) to the
grit se,tling channels. At
this stage, quiet conditions
are induced and the grit set-
tles out. The liquid portion
is pumped back to the tank
and the accumulated grit
periodically removed for
final disposal.
Aeration Contact
The sewage flow now en;
tern the contact tank where
a controlled and balanced
bacteriological environment
(oxygen, bacteria and food
or waste constituents
homogeneously mixed) is
maintained. To provide this
environment, large quan-
tities of oxygen and return
sludge containing bacteria
(from the re-aeration tank)
are required.
At this installation, the
waste flow is normally in
the new control building.
This operation violently
mixes and agitates the tank
contents to prevent
disposition of solids and
allows surface oxygen to be
entrapped by the liquid par-
ticles.
Final Settling
The flow from the contact
tank now enters. the final
settling tank for another
period of about 2 1/2 hours
to allow the "activated"
sludge to settle, out. This
tank is also equipped with a
scrapper mechanism to
collect the settled sludge for
subsequent pumping and
return n tto'-• •4reua Oration
tank.
Although the larger por-
tion of this sludge is retur-
ned to the re-aeration tank
to supply the contact tank, a
small portion must be
"wasted" to the aerobic
digester to maintain the
The Royal Conservatory of
Music, Toronto, publishes the
following list of successful
students for the recent
examinations held in Clinton:
Grade IX Piano, pass —
Marjorie I. Freeman; Grade
VIII Piano, honours — Dana
Morgan, pass — Robert
Wilson, Margaret J. Wilkin,
Michele Flowers; Grade VII
Piano, honours — Elaine Hop-
per, Jane M. Ribey; pass — Jeff
Allan, Christine Carter (equal),
Marian Doucette; Grade VI
Piano, honours — Laurel R.
Loraine MacMillan of Huron
Park came through with a solo
bingo and took the .$1,000.00
Jackpot in Monday night's
Monster Bingo, June De Ryter,
Diane Parsons and Diane Ryan
each won over $200 on Share-
the-Wealth prizes.
Joyce Kennedy, Thelma
Jones, Kathy Smith, Gloria
McClinchey and Helen Ann
Elliott each won $50 regular
games.
Other regular game winners
were James Hunter, Wilma
McMichael, Bill Keating, Kay
Itacho, Bev Vanninhais, Ches'
Higdon, Mrs. W, Barwick, Mrs.
Lenna Pennington, Matty
Francis, Kay Radio for the
The June meeting of the
Goderich Township Women's
Institute was held Monday,
June 10 at Holmesville School,
Twenty members and sir guests
answered the roll call, "A twin.
try which belongs to the United
Nations." Mary Anne Yates
gave the presentation on Pen-
nies for Friendship as presen-
ted by the Ittstitue at the
biattict Annual in Selgrave
last month,
The metthera were asked to
assist with lunch for the
evening planned to honour
Mrs, Powell on het retirement
balance in the contact tank.
At this stage of the procesa,
the relatively clear effluent
from the final settling tank
flows into a large rubber
lined reservoir,
Tertiary Treatment
Due to the low annual
flow in the Bayfield River
and the incompatible high
flows from the expanded
Pollution Control Plant, an
additional treatment (ter-
tiary treatment) stage is em-
ployed.
Inside the rubber-lined
reservoir, the fluctuating
daily flows are retained for
constant pumping into two
effluent filters which are
two storeys high in the con-
trol building. Each filter has
a layer of fine sand (12"
deep) and a layer of an-
thracite coal (18" deep)
through which the effluent
flows for collection in a
storage compartment in the
filter.
Overflow from the storage
compartment flows to the'
parshall flume for recording
of flow 'quantities.
Chlorination
Prior to leaving the flume
structure, chlorine solution
is mixed with the flow in
direct proportion to the
treatment plant flow rate
and is directed to the
chlorine contact tanks
where is it is retained for at
least 30 minutes, to give the
chlorine time to do its work.
This disinfection destroys
any pathogenic (disease
carrying) bacteria which
may be contained in the ef-
fluent prior to the final
discharge to the Bayfield
River.
Sludge Digestion and
Disposal
As previously indicated,
sludge from the final set-
tling tank is pumped to the
Te-aeration tank for ac-
1 i`va ti an by -an ea ris 'of
'aeration. Following this, the
sludge flows into the contact
tank for mixing with the
waste flow.
Some of the sludge is
"wasted" to the aerobic
digester rather than being
returned to the re-aeration
Levis, Grant D. Morgan, Tami
A. Thurlow (equal); pass —
Margot G. Menzies, Jan M.
Divok; Robin Ormandy,
Patricia L. Petrie (equal);
Grade V Piano, pass — Julia
M. Armstrong; Grade IV
Piano, honours — Carolyn
Wilson; Grade III Piano,
honours — Peggy L. Jones,
Karen J. Farquhar, Cathy D.
Lewis; Grade II Piano, first
class honours — Glenn C.
Brandon; honours — Lynne C.
Cochrane, Carolyn J. Wood
(equal).
second time, Edith Campbell,
Mrs. Rean, Kay Seers, Becky
Howse, Mrs, Dick Freeman,
Marion Wasson, Mrs. Geo,
Earle, Maude Weston, Janet
Therwell, Judy Dixon, Ray
Beuerman, Barb Rau, Mrs. Bill
Crawford, Mrs. McKinnon of
Zurich, W. D. Wilson, Edith
Campbell once more, Kathy
Smith, Diane Oud, Sarah An.,
stett, Barbara Batkin, Shirley
Smith and Marie Hamilton.
There is one more Monster
Bingo this month and that's
this coming Monday, June 24.
The bingos will resume in July
on the last three Mondays of
the Month. That's the 15th,
22nd and 29th of July.
which is to be held at
Holmesville School on Friday,
!lane 21st at 8 p.m,
It was decided that we would
plan a bus trip to Mennonite
Country in mid Septeinber,
Alice Porter and her group
gave an interesting and infor-
Mative program on UNICEF,
covering different countries in
Which the money collected is
spent on health care and
etiOation, The seine group
provided a delicious lunch of
English Trifle and coffee,
The next meeting will be
held Metiday0 September 9th.
tank. This excess sludge is
stablized (decomposed)
prior to final disposal, Air is
continously introduced by
means of large air blowers
in the new control building.
An ample supply of air
assures a completely aerobic
(oxygenated) tank mass free
from any obnoxious or of-
fending odours.
FolloWing several days
detention in the aerobic
digester, the sludge is con-
veyed to a sludge holding
tank where the aeration
process continues. At
periodic intervals, the
aeration system in the
sludge Holding Tank' is
stopped and the stabilized
aerobic sludge is settled,
decanted and pumped to a
tank truck for final disposal,
usually as fertilizer.
Torn McMahon, who operates Clinton's new $750,000 sewage
treatment plant looks oveta few of the pumps that are required
to process Clinton's sewage and prevent pollution of the
Bayfield River. The plant will be open for tours next
Wednesday afternoon, (News-Record photo)
14-CLINTON NEW$-RECORD, THURSDAY, JUNE %),1974
Clinton's new sewage plant to be opened
Piano exam results
Monster bingo winners
God erich Twp. meets