Water Pollution +

Water Treatment

Warm-upWrite a homework reminder!Update your Table of Contents! Get your EOG Review Booklet out to be checked!

Play the Water, Water Everywhere! Zondle while you wait!Date Session

#Activity Page

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5/8 & 5/11

3 Water Pollution & Water Treatment Notes 5

You know water can be healthy or unhealthy…

But how does it get this way???

What is Water Pollution?

Pollutant – The addition of any substance that damages the water quality and makes it dangerous to drink or use.

Where do these pollutants come from?

Factories FarmsHouseholds

What do they each contribute to the pollution problem?

Types of Pollutants You Might Not Think Of!

Biodegradable WasteHeatSediments/ErosionBacteria/Medical Waste

Any other examples?

How do these

pollutants get into

the water?

Click icon to add picture

There are 2 ways pollutants get into the water:

POINT SOURCE

POLLUTION

NON-POINT SOURCE

POLLUTION

Point Source Pollution

Comes from a single identifiable source

Enters the water directly

Example:A paper mill pouring chemicals into a

stream

Non- Point Source PollutionComes from many sources

that are not easily identified

Gets into the water eventually (RUN-OFF)

Example: Pesticides from a farm run-

off into a creek after a rain storm

Pollution Protest !!!

You will be given an example of either Point or Non-Point Source Pollution.

Raise your sign when I tell you to protest which type of pollution you think is correct!

Point or Non-Point?

Oil spilling from a tanker

Point or Non-Point?Irrigation from farms washes soil and sediment into a river

Point or Non-Point?Sewer pipe draining human waste into the ocean

Point or Non-Point?

Sediment washed into

the river from a construction

site

Point or Non-Point?Fire burning in a landfill; water from fighting the fire will move downhill to the nearest water source…

Point or Non-Point?Battery acid leaks from cars onto the parking lot and is followed by a big rain storm

Point or Non-Point? Sludge from a chemical plant flows into a stream

Point or Non-Point?Pesticides from a garden drain during a rain storm into a local pond

Point or Non-Point?Factory that produces plastic storage containers dumps liquid wastes into a nearby river

Point or Non-Point?A deadly bacteria from cow waste makes its way into a nearby drainage ditch

Point or Non-Point?

A dangerous acid enters the air from a coal mine in West Virginia and will eventually contribute to acid rain

What is in place to prevent water pollution?

What is the government doing to protect our water?

Environmental Protection Agency (EPA) Sets and enforces standards for wastewater

that is released into bodies of water or used as drinking water.

Clean Water Act (CWA) (Established by the EPA), the Clean Water Act

regulates the discharge of pollutants into the waters of the United States and regulates quality standards for surface water

Basically makes point source pollution illegal

What can YOU do to protect our water?

What can you

What can YOU do to protect our water?

Stewardship:YOUR own personal role in caring for Earth’s waters

If our water is polluted… How do we make water safe to drink and use for

everyday life? What needs to be taken out before we can use it?

Wastewater Treatment

WastewaterThe dirty water that runs down our drains & sewers that must be cleaned before it can go into lakes, rivers, etc. or be reused.

“ The Sparkling Water Story”

Listen and follow along as you see firsthand how we impact the cleanliness of our water everyday!

Sparking Water Story Part 1 Darin wakes up bright and early to start

his day. Since it’s Saturday, it’s his turn to water his mom’s plants. Darin grabs the plants & carries them to the sink. He is not paying attention because he is watching cartoons at the same time. He puts too much water on the plants causing the pot to overflow and spill soil into the sink. He quickly rinses it down the drain so he doesn’t get into trouble, and then runs off to watch his cartoons.

Sparkling Water Story Part 1Dad has managed to get the coffee

started and when it is done Dad pours a cup of coffee for himself and a cup for Mom; then goes to read the paper. Mom appreciates his effort but sighs as she realizes he didn’t take the coffee grounds out of the coffee maker and throw them away. She removes them but sees the garbage is full. “It wont hurt to put these down the sink,” she says to herself.

Sparkling Water Story Part 1As mom throws the coffee grounds

down the drain she realizes that the garbage disposal smells bad and decides to put a little lemon juice and baking soda in the drain to clean the disposal.

Sparkling Water Story Part 1Becky walks into the kitchen and decides

to try to make homemade biscuits for breakfast, but she burns them. Nobody wants to eat the dry, burned biscuits. Darin excuses himself to the bathroom where he flushes his food away. Mom rushes to do the dishes and “accidentally” drops her biscuits down the drain and turns on the water and garbage disposal.

Sparkling Water Story Part 2The family’s day continues as Dad

and Darin go outside to wash the car. They spray the car down, soap it up, and rinse it off. The soapy water runs down the driveway into the storm drain.

Sparkling Water Story Part 2

Darin notices that the car has been leaking motor oil, so he decides to spray down the driveway. He sprays and sprays, until he is convinced that he has gotten all of the motor oil off and just a stain remains. The motor oil runs into the storm drain.

Sparkling Water Story Part 2 Mom and Becky are now outside taking

care of Mom’s garden. Mom is spraying the plants down with pesticides so that insects and animals don’t eat them. Becky is sprinkling fertilizer on the plants to make sure that they grow. Darin thinks to himself, “Well, I’m going to help them out and water the garden.” Darin sprays the hose over the plants. Mom screams for him to stop, but its too late, all of the fertilizer and pesticide has been rinsed off, and it too eventually makes it’s way to the storm drain.

Filtration Lab: RolesFiltration Engineer/Leader – creates

the “blue print” for your system with input from group members BEFORE you just start filtering and waste supplies

Supply Management – 2 people responsible for supplies & clean up

Scribe – Responsible for leading the discussion, filling out the lab questions for your group & turning them in

Filtration Lab: Create your own filtration system!!Use the whiteboard to create a detailed

plan that includes step by step instructions and diagram as to how each item in your kit will be used…

Please show me your plan BEFORE I allow your supply management technician to get water!

Filtration Lab Clean-Up:Any large chunks or particles can go back

into the main tank or in the garbage, ONLY clear water can go down the drain at your assigned sink

GARBAGE: Used coffee filters & used cotton balls can go straight in the garbage

WASH: Other supplies need to be rinsed and dried – conserve the good paper towel!!

RETURNED BIN SHOULD HAVE: Marker, metal screen, plastic strainer, spoon, pipette, plastic cups

LAB QUESTIONS SHOULD BE IN THE BASKET!

Steps to the

Wastewater

Treatment Cycle

Step 1. CoagulationCoagulation: Chemicals are added so that waste particles stick together into “floc,” so they can easily be removed.

“Stick & Scoop” step

Step 2. Sedimentation

Sedimentation: The heavy particles settle to the bottom and the clear water moves on

Step 3. FiltrationFiltration: The water passes through filters made of different materials

Step 4. DisinfectionDisinfection: A small amount of chemicals are added to kill bacteria(usually chlorine)

Step 5. StorageStorage: Water is stored in a closed tank to be used by the community

Wastewater Treatment

Wastewater Treatment Process: http://www.youtube.com/watch?v=tuYB8nMFxQA

But what happens when your city doesn’t have a proper sewer system?

Toxic Water: The Sewers of Mexico

City http://www.youtube.com/watch?v=

3a_4YhxN2vo&feature=fvst