Lesson Plan about our drinking water
1. Flint, Michigan
2. How did the people discover the problem?
3. Can a water filter remove lead?
4. Total Dissolved Solids
5. Zero Water
6. What can we do at our school?
7. Place water filters next to the water fountains
Replace filters
Pay for the water filter
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1. Flint, Michigan
Feb. 25: Tests Show High Lead Levels In Home
A city test "reveals high lead content in the water of a Flint resident's home."
As Michigan Radio reported, the water at Lee Anne Walters' home "turns up with a lead content of 104 parts per billion. Fifteen parts per billion is the [Environmental Protection Agency]'s limit for lead in drinking water."
In April, Walters says her child was diagnosed with lead poisoning. An independent test done by Virginia Tech researchers
finds lead levels at 13,200 ppb — water is considered hazardous waste at 5,000 ppb.
- If you are on a school board and wish to have your school’s water tested for lead, ZeroWater would like to make that happen. Please contact EnviroTek Labs for free testing for schools: jyoung@enviroteklab.com 856-478-0010
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2. How did the people discover the problem?
See the Wiki article
https://en.wikipedia.org/wiki/Flint_water_crisis
VOX article
http://www.vox.com/2016/2/15/10991626/flint-water-crisis
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3. Can a water filter remove lead?
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4. Total Dissolved Solids
What is TDS? __________________________
What is the concentration of lead that is acceptable in water?
What is the concentration of lead in OUR drinking water?
How much lead can the ZERO WATER filter remove?
What articles can we look at to learn more? (Students search the Internet)
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What can be done about
lead in water? |
5. Zero Water
The Science Lab
Use the Total Dissolved Solids measuring device to find out the number of TDS in the school's fountain
Compare to bottle water
Then compare to water that has gone through the water filter.
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6. What can we do at our school?
We could buy a Zero Water Filter and jug.
Can students be encouraged to allow the water to drip over time?
Do we need more than one filter for the building?
How much water can one filter handle before it needs to be replaced?
Get information from the Zero Water website
Vocabulary
TDS = Total Dissolved Solids
Ion Exchange
What is an ion?
Why does it need to be exchanged?
What is "activated carbon"?
What does "activated carbon" do to the water?
What is
oxidation reduction alloy
What is an alloy?
What is oxidation?
What does oxidation do to the water?
Here is some of the information
ZeroWater 23-Cup Water Dispenser and Filtration System
With its generous 23-cup capacity, this innovative water-filtration system keeps pure, filtered drinking water conveniently accessible--its sleek, space-saving design fits neatly on the counter or on a shelf in the refrigerator. Functioning as both a water filter and a handy dispenser, the unit comes equipped with a push-button spout for simple one-handed dispensing into a glass, water bottle, or other beverage container, or even into a pot for cooking. Sleek, slim design.
Unlike conventional two-stage carbon filters, the dispenser's next-generation filtration system combines five levels of water-purifying technology. First, its activated carbon and oxidation reduction alloy removes the chlorine taste typically associated with tap water. Next, its Ion Exchange stage removes virtually all dissolved solids that may be left over from public water systems or even leached into water from aluminum, lead, and other types of piping. Finally, three additional stages of filtration remove other impurities and ensure the water receives the appropriate amount of treatment time to deliver a '000' reading on the included laboratory-grade Total Dissolved Solids (TDS) water-testing meter. Thoughtfully designed, the water dispenser also provides a built-in TDS meter holder, a flip-up lid for easily adding more water, and a shape that completely dispenses all the water inside, which means no stale water to worry about. A useful addition to any busy and health-conscious household, the 23-cup water-filtration dispenser measures approximately 6-inches by 11-1/5-inches by 15-1/5-inches and carries a 90-day limited warranty.
Even if you live in a municipality that cleans or treats water, water can pick up chemicals on its way from the treatment plant to your faucet, giving your tap water a metallic or chlorinated taste. ZeroWater's first layer of filtration, activated carbon and oxidation reduction alloy removes the chlorine taste you are accustom to with tap water. The Ion Exchange stage removes virtually all dissolved solids that may be left over from public water systems or even leached into your water from piping such as Aluminum, Lead, Zinc, Nitrate and more. Three additional stages are included to remove other impurities and to ensure your water receives the appropriate amount of treatment time to deliver a '000' reading on your laboratory-grade TDS meter (included). TDS stands for Total Dissolved Solids and represents the amount of dissolved substances that can negatively affect the way water tastes.
CLICK HERE to go to the STUDENT PAGE
Five-Stage Filtration System:
Unlike conventional gravity-fed or carbon water filters that remove only certain substances from your water, ZeroWater's patented 5-stage Ion Exchange System delivers the only filtered water to measure 000 PPM (parts per million) on the TDS meter. Compare that to the levels you’ll find in other filtered waters, most bottled waters and plain unfiltered tap water, all of which contain measureable amounts of dissolved solids. TDS meter readings for tap water in the US average between 190 and 200 PPM. Conventional filtered water measures between 030-500 PPM, and bottled water between 000-350 PPM.
Stage 1: Activated carbon infused micro cloth.
Stage 2: Multi-layer system using carbon and oxidation reduces alloy.
Stage 3: Distributor that maximizes contact time.
Stage 4: Comprehensive ION Exchange array.
Stage 5: Non-woven membrane to remove fine particles.
The included TDS meter ensures that you're getting the best-tasting water possible.
Battery-Powered TDS Meter Makes it Easy to Test Your Water:
The beauty of the ZeroWater Pitcher is that you don't have to accept purity claims at face value. Test your water yourself with the included meter and watch as the zeros come together to ensure that you're getting the best-tasting water possible. Powered by two easy-to-replace 1.5-volt button cell batteries (included), this meter also lets you know the status of your filter. For instance, if your meter reads '006', it's time to replace the filter.
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7. Place water filters next to the water fountains
Replace filters
Pay for the water filter
Calculate the cost of the filters
(This lesson plan is deliberately lacking information... Students should read this lesson plan with the teacher and decide what to add).
https://www.zerowater.com/water-quality-resources/
If you are on a school board and wish to have your school's water tested for lead, ZeroWater would like to make that happen. Please contact EnviroTek Labs for ...
Missing: lessons
https://www.zerowater.com/savings.aspx
Water filter pitcher Zero Water Replacement Filters in-home residential drinking water filtration solution treatment that eliminates virtually all ... zerowater-coupon.
Missing: school lessons
WATER TESTING
Where You Can Test Drinking Water
The following is a list of some State approved laboratories in your area that you can call to have your water tested for lead.
Spectrum Labs
1460 West Mc Nab Road
Fort Lauderdale, Florida 33309
Phone: 978-6400
IEA
1133 Sawgrass Corporate Parkway
Sunrise, Florida 33323
Savannah Laboratories
414 S.W. 12 Avenue
Deerfield Beach, Florida 33442
Phone: 421-7400
Water & Wastewater Services
2555 West Copans Road
Pompano Beach, FL 33069
765-4710
If a water test indicates that the drinking water drawn from a tap in your home contains lead above 15 ppb, you should take action...
MATH QUESTION
If the level is 10 parts of lead per billion, should you be worried?
If the level is 2 parts of lead per million, should you be worried?
