Transcript No Slide Title

Wastewater
Treatment Plant Tour
Dr. Marty Auer
Professor of
Civil & Environmental Engineering
Take a web tour of a wastewater treatment plant at
http://www.wef.org/publicinfo/#
Click on “Go With The Flow”
What’s in wastewater?
Waste
 human feces and urine
 food from sinks
 soaps and other cleaning agents
 runoff from streets and lawns
 industrial discharges
What’s in wastewater?
Water
 lots of it!
 Urinal - 1 gallon per flush
 Toilet - 4 gallons per flush
 Shower - 20 gallons per use
 Overall - 55 gal/person/day
It’s mostly water!
H2O
There are about 500
parts of waste in
every 1 million parts
of wastewater; that’s
500 ppm.
It’s like trying to find this class at
a sold out Packers game!
So what’s the problem?
Pollutant
Problem
Pathogens
Solids
Nutrients
Organics
Toxics
Solids
Disease
Aesthetics
Algae
Oxygen
Wildlife
P SNOT: it snot a pretty picture!
Where does it go when
you flush the toilet?
This is really
not something
I’ve given a lot
of thought to.
Portage Lake Sewer System
Houghton
P
Franklin Sq.
G
Surface; 30”
Super 8
G
Near Surface; 30”
MTU
G
10’;36”
M&M Bldg.
G
Lake; 48”
POTW
P
20’; 48”
P
Hancock
It’s a 24/7 thing!
The Portage Lake Wastewater Treatment
Plant was built in 1991-93 and cost$20M.
On average, the plant receives 2.8 MGD of
raw wastewater with peak flows >10 MGD.
How much?
If there are 7.48 gallons in 1 ft3, how
many days of sewage flow would it take
to fill Hancock H.S. to the roof?
It’s a 24/7 thing!
The Portage Lake Wastewater Treatment
Plant was built in 1991-93 and cost$20M.
On average, the plant receives 2.8 MGD of
raw wastewater with peak flows >10 MGD.
How much?
The average daily flow to the Portage
Lake Treatment Plant would fill the
EERC to the roof in 4 days.
P SNOT: it snot a pretty picture!
Pollutant
Problem
Pathogens
Solids
Nutrients
Organics
Toxics
Disease
Aesthetics
Algae
Oxygen
Wildlife
Pollutant
Treatment
Pathogens Zap 'em
Solids
Sink 'em or Squeeze 'em
Nutrients Trap 'em
Organics Eat 'em
Toxics
Suck 'em up
Solids Then it snot a problem!
How do we treat it?
Bacteria
Protozoa
Pollutant
Treatment
Pathogens
Solids
Nutrients
Organics
Toxics
Solids
Zap 'em
Sink 'em or Squeeze 'em
Trap 'em
Eat 'em
Suck 'em up
Then it snot a problem!
And where does it
go from here?
Treated effluent from the Portage
Lake Wastewater Treatment Plant
is discharged to Portage Lake … an
important recreational resource
for all of us.
Associate of Applied Science Degree
in Water Technology
Provides specialized training in water and
wastewater treatment theory and application to
both entry level personnel and those already in the
field. Persons who complete degree requirements
and gain appropriate work experience may qualify
to progress through certification to highest grade
licensure in municipal and industrial water and
wastewater treatment.
http://www.baydenoc.cc.mi.us/www/wthomep.html
B.S. Environmental Engineering
Work for an engineering consulting firm designing
and constructing plants to treat drinking water and
wastewater and the associated sewers and water
distribution systems, predict down wind
concentrations of air pollutants for companies
attempting to obtain air permits, develop a solid
waste management plan, clean up contaminated
soil, groundwater, river and lake sediments,
restore abandoned urban sites to viable business or
community green spaces.
http://www.cee.mtu.edu
Lift
Station
Bar
Screens
Grit
Chamber
Flow
Equalization
Fe
added
1°
Clarifier
1°
Clarifier
1°S
Land
Application
WAS
Supernatant
RAS
Aeration
Tank
RAS
2°
Clarifier
Sludge
Storage
1st Stage
Anaerobic
Digester
Fe
added
2°
Clarifier
Recycle
Filter
Press
2nd Stage
Anaerobic
Digester
UV
Disinfection
Portage Lake Wastewater Treatment Plant
Polymer Added