Water Unit: ENVIRONMENTAL SCIENCE 302 LOCH

How sure are you? CREATE A KWL CHART

Each student reads the next slide

Go to the website on the wikipage This will teach you basic information about the wastewater treatment plant 1. The SOURCES of wastewater 2. The STEPS in treatment (primary, secondary, advanced) 3. The FATE of the end products

Today Today : Create a graphic organizer to follow along and organize your info Longterm: you have until class next Wednesday to show me – everyone in the class that is – that you understand this information. How are you going to do that?

In the Primary, Secondary, Advanced columns, sort these concepts correctly Optional, not usually doneSettles large particles Filters large particles which go to a landfill Removes pollutants like nitrates and phosphates Removes bacteria with chlorine or ultraviolet light Adds O 2 to promote bacterial growth Uses a 2 nd filterBacteria added to decompose waste

 Now that you have the gist, show me that you know this very well. Which means: › You can clearly represent the steps to me › In a different context › It will be creative and help your classmates (or other classes) learn › It will answer one of our original questions

Where does the poop go? Do we drink our own wastewater? How is drinking water filtered? Do dead fish get to the ocean if you flush them? Where does the stuff go that is filtered out? Is the water cycle on any other planets? How much water does Philly use on a daily basis? How can you tell if your water is clean? What happens if you drink your own poop water? Is toilet water drinkable? Do we use our waste for anything productive?

Why does water fountain water taste different? How do we know if water is contaminated? How long does the process take? Is natural filtration as good as a treatment plant? What factors affect the process? Is toilet water clean enough to drink? How do companies shut off your water? Why is tap water in other countries unsafe to drink? What happens to toilet paper? What happens to random objects (fish) that get flushed?

How do they get out things that have dissolved in the water (polar)? Is toilet water actually dirty? How long is the process from toilet to tap? Why does sewage smell? Why is water from the faucet sometimes white? Is finding Nemo accurate? What happens to stuff that you put down the toilet? What happens to poison, drugs? Why do some people think you can’t drink the sink water?

 Toilet  Sink  Washing Machine  Dishwasher  Your house, a laboratory, an industrial factory, etc…

 PHYSICAL  Filtering large particles  goes to landfill  Settle large particles  on to secondary  removes ~60% of suspended solids from wastewater.

 BIOLOGICAL  Bacterial growth promoted, then killed › Aeration encourages bacterial growth  puts O 2 back into water › Bacteria decompose waste – yum! › Bacteria are killed via chlorine (usually)  Removes >90 percent of suspended solids.

 CHEMICAL & PHYSICAL  “optional” (not done conventionally)  Reduce pollutants of “special concern” › Nutrients like Nitrates and Phosphates…why?  Uses coagulating chemicals & a 2 nd filter

WATER  Into a lake or river  ocean  Crops/Golf course  Possible problems? SLUDGE  Lagoon  Incinerator  Crop fertilizer  Possible problems?

Beauty Products Medicine Engine Oil Paint Lawn Care Products Photographic Chemicals Used Cooking Oil Fat from cooking Bacon Diapers Condoms

 Wastewater tx plants will always be in the basin of a watershed…why?

 Vx8FBx5s&feature=related Vx8FBx5s&feature=related  Start at 20sec

 Recycles wastewater to drinking water  Video clip Video clip

Wastewater Treatment Recap

 Recycles wastewater to drinking water  Video clip Video clip

 Boiling  Using Sun’s Rays to disinfect  Lifestraw  Purification plants  Toilet to Tap How’s this linked to… Life expectancies? Natural Disasters? Hiking?

What do you normally drink? Why? What do you know about bottled water?

 Show the differences and similarities between drinking water and wastewater treatment.

Where does the poop go? Do we drink our own wastewater? How is drinking water filtered? Do dead fish get to the ocean if you flush them? Where does the stuff go that is filtered out? Is the water cycle on any other planets? How much water does Philly use on a daily basis? How can you tell if your water is clean? What happens if you drink your own poop water? Is toilet water drinkable? Do we use our waste for anything productive?

Why does water fountain water taste different? How do we know if water is contaminated? How long does the process take? Is natural filtration as good as a treatment plant? What factors affect the process? Is toilet water clean enough to drink? How do companies shut off your water? Why is tap water in other countries unsafe to drink? What happens to toilet paper? What happens to random objects (fish) that get flushed?

How do they get out things that have dissolved in the water (polar)? Is toilet water actually dirty? How long is the process from toilet to tap? Why does sewage smell? Why is water from the faucet sometimes white? Is finding Nemo accurate? What happens to stuff that you put down the toilet? What happens to poison, drugs? Why do some people think you can’t drink the sink water?

 Fill in more items in the “L” column of your KWL

Grit Filters (to remove large matter) Sedimentation tank Trickling filter Aeration Secondary filters Wastewater from city To stream Tertiary treatment

Primary Filters (to remove large matter) Flocculation tank Sedimentation tank Rapid / slow sand filtration Chlorination Water from rivers / lakes To tanks in the city

 What does it include? › Brainstorm a list of 5 contents  Where does it come from? › Brainstorm a list of 5 contents  Why should humans care?

 Why are we concerned about water usage if the law of conservation of matter is true?

 Disease-causing pathogens can destroy food chains  Organisms die ….leading to low oxygen levels via decomposers › May be due to increased algal growth or more directly via toxic kills  Chlorine compounds and inorganic chloramines can be toxic to aquatic invertebrates, algae and fish;  Bioaccumulation › Metals, such as mercury, lead, cadmium, chromium and arsenic can build up a food chain unknown effects  Pharmaceutical and personal care products may cause unknown effects …

 ml ml  Stages of treatment, purpose of a treatment plant