WATER: Necessity of Life by Debbie Purcell

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WATER Necessity of Lifeby Debbie Purcell
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Water Usage
Each person in the U.S. uses about 150 gallons
of water a day for drinking, cooking, bathing,
flushing the toilet, laundry, washing cars, and
watering lawns. Water treatment facilities have
the tremendous responsibility of supplying clean
drinkable water to a town, city, or community.
Water facilities measure water in cubic feet
whereas, we usually measure water in gallons.
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Smyrna Water Treatment

• Pretreatment
• Coagulation/
• Flocculation
• Filtration
• Disinfection

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Manager Chris Lambert received praise of Best
run facility in the state.
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Water Treatment Coagulation
Randy Jones Chris Lambert watch the process of
coagulation.
Surface water usually has a lot of suspended and
dissolved matter. Coagulation facilitates the
removal of small, non-settleable solids.
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Filtration
Water passes through beds of sand, anthracite
coal, granular activated carbon, or a
combination to remove particle impurities.
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Disinfection

• Destroy disease-causing organisms,
• pathogens, only

• Technology determines the amount of chemicals
  to make water safe.

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Murfreesboro Water Sewer Dept.
Asst. Dir. Gene Casto demonstrates the
coagulation process at the Murfreesboro Water
Plant.
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Murfreesboro Water Plant
Assistant Director Gene Casto
This filtration room equipment to soon be
replaced with newer technology, a membrane
filtration system.
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Murfreesboro customers use an average of
10,000,000 gallons of potable water a day.
Subjected to chemical treatment, sedimentation,
filtration, and disinfection to be ready for
human consumption. Substantial capital is
invested in treatment plant, storage,
chemicals, distribution, highly skilled labor.

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Murfreesboros Wastewater
Wastewater is not just sewage.
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Wastewater

• All water used in the home that goes
• down the drains or into sewage system
• Average American contributes 265-
• 568 liters (66-192 gallons) each day.
• Wastewater is about 99 water by
• weight.

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Dewatering Press
First in the U.S. to implement the rotator
dewatering presses.
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Returned to Source

• Physical removal of floatable/settleable solids
• Biological removal of dissolved solids
• Disinfect using chlorine
• Release into Stones River

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Repurified Water

• New 500,000 gallon reuse water tank
• Allocated for irrigation at Old Fort Golf Course
  and Medical Center Parkway

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Consolidated Utility District
David Jones (Sandfilter Operations) Larry
McElroy, General Manager

• Largest utility district in the state
• Supplies potable water to rural
• customers

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Advantages of Recirculating Sand Filters

• Effective land use
• Less capital cost
• Relative low maintenance
• Energy efficient
• Reliable
• Resilient
• Essentially order
• free

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State Aquatic Biology Department
Tennessee Department of Health
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Water Pollution Control
Biologist, Pat Alicia, performs a
macroinvertebrate stream survey.
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What are stream surveys?

• Collect spring, lake, river samples
• Identify macroinvertebrates
• Examine aquatic specimens
• Count number of specimens in each
• stage
• Record for comparison with past/
• future samplings.

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Biologist, Pat Alicia examines
aquatic specimens to determine how polluted or
clean a stream is.
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Fleming Training Center
Trains water operators to be certified
licensed by state to operate water wastewater
treatment plants
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Training Supervisor, Randy Jones figures chemical
amounts
Demonstrates coagulation test
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Awareness Training at MTSU
Center of Environment Ed.
Laura McCall
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Dr. Kathy Mathis admires new pervious
concrete used in parking lot.
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Environmental Education
Dr. Padgett Kelly brings classes to nearby
streams ponds.
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Performance Objective

• TSW learn different water usages
• TSW analyze data
• TSW display data in chart/graph form

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Applications

• TSW keep a daily personal water usage record.
• TSW calculate total daily usage.
• TSW construct charts graphs
• TSW display collected data in various chart/graph
  forms.
• TSW analyze interpret data

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Personal Water Meter

• Drinking water 1 cup or 1/8 gallon
• Flushing toilet 5 gallons
• Brushing teeth 2 gallons (running)
• Dishwasher 20 gallons (/ family)
• Dish washing (by hand) 30 gallons
• Load of laundry 40 gallons
• Shower/bath 5 gallons per minute

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Activities

• Student keeps a record of his/her water usage for
  2 3 days in a frequency chart.
• Student calculates amount of water for each usage
  based on Personal Water Meter (previous slide).
• Student calculates total usage.
• Student determines of each usage.
• Students construct and display usage in bar and
  circle graphs.

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Evaluation

• Accuracy of chart
• Graph correctness according to data used
• Correct labeling of graph

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Resources

• Consolidated Utility District of Rutherford
  County
• Larry McElroy
• lcmcelroy_at_cudrc.com
• Fleming Training Center
• Randal Jones
• randal.H.Jones_at_state.tn.us
• MTSU Center for Environmental Education
• Laura Jennings McCall Dr. Padgett Kelly
• lmccall_at_mtsu.edu

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• MTSU Center for Environmental Science
• Dr. Kathy Mathis
• Murfreesboro Water Sewer Department
• M. E. Casto
• Smyrna Treatment Plant
• Chris Lambert
• State Aquatic Biology Department
• Pat Alicia