Please put off your Mobiles. Please maintain silence during this Presentation. V R here 4 U.
GET READY TO PUT IT ALL TOGETHER! Please find your STUFF objective sheet Please read the board!
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Transcript of GET READY TO PUT IT ALL TOGETHER! Please find your STUFF objective sheet Please read the board!
GET READY TO PUT IT ALL TOGETHER!
• Please find your STUFF objective sheet• Please read the board!
PUT TOGETHER YOUR STUDY GUIDE – STAR TWO OBJECTIVES YOU FEEL CONFIDENT ABOUT; ADD TWO QUESTION MARKS FOR THOSE YOU NEED CLARIFICATION
• Obj #1-3: Power point 2/27 on westsidewolves.org• Obj #4-8: Notes Mon 3/2 and landfill handout; quiz• Obj #9-23: Notes March 3/3; cradle to cradle reading/zaption• Obj #24-31: Notes March 6 and 9 on powerpoint
GARBAGE PATCH/GARBAGE GYRES
• Floats between Hawaii and California
• Twice as big as Texas
• Can be 30 m deep
THE TROUBLE WITH PLASTICS IN THE OCEANS
• don’t biodegrade like other debris
• break down over time into smaller and smaller pieces while still maintaining their chemical make-up
• As the pieces get smaller fish, mammals, birds and even plankton will consume the pieces which are not digestible
• While the plastics may not be visible to the eye, studies have shown that in some areas the concentration of plastics outnumbers the concentration of plankton by a ratio of 7:1
PLASTICS MOVE DOWN STORM DRAIN. LITTER IS UNLAWFUL.
CONSIDER THE THREE STEPS OF RECYCLING: WHY IS THIS MATERIAL NOT BEING RECYCLED?
• Right answer: It’s too hard to collect and the stuff is too mixed up.
• (What’s vague? What needs clarification? What details can you add to show off mastery?)
CONSIDER THE THREE STEPS OF RECYCLING: WHY IS THIS MATERIAL NOT BEING RECYCLED?
• Polymers• Collection• Reprocessing• Repurchasing• Melting point
•Markets• Postconsumer
wastes•Downcycling
NEW TOPIC BRAINSTORM!
E-WASTE
CAN YOU HEAR ME NOW?
EWASTE SPECIFICS
Most common: TV’s
• Monitor: Pb• Circuit board: Hg, Pb, flame
retardants• Cables and wires: Cd, flame
retardants, PVC
Smart phones
• Circuit board: Cu, Au, Pb, Ag, Pd
• Battery - Li
TOXIC COMPONENTS IN A PC
• Secret life of a cell phone
• National Geographic - High Tech Trash January 2008
PAIRS -
• Apply the concept of product of service to the e-waste dilemma
• What would manufacturers have to do to make this Product of Service idea a reality?
THINK IT’S A PIPE DREAM?
• Xerox – • Solid ink – ships in block, no packaging, melts in copier• Copiers designed to be disassembled when outdated.
Components are refurbished and included in newer models where possible.• Toner cartridges – returned to be refilled, not thrown
out.
XEROX• “Before is was categorized as green, we thought of
it as just being efficient.” –Ursula Burns, Xerox President• “I’m in a funny business – I’m looking for ways that
companies can print less. Printing is not going to go away, but we think you have to print more efficiently . . .We know that if we do that we can continue to grow.” – John Kelly, president of global services at Xerox
MODULAR PHONES
RIGHT V. AP: EXPLAIN WHY EWASTE SHOULD NOT BE DISPOSED OF IN A LANDFILL.
• Right: E-wastes like smart phones have toxic chemicals in them. In the landfill, the toxins can leak into the liquid. The liquid could get into groundwater and hurt people.
• (What’s vague? What needs clarification? What details can you add to show off mastery?)
AP DETAILS!
• Cadmium, Lead, Mercury• Leachate• Wells/drinking water• Working landfills are open• Mechanical compaction
• Brain damage, birth defects, cancer• Plastic Liners• clay
NEW TOPIC: BRAINSTORM!
TWO NEW LAWS! RCRA AND CERCLA
RIGHT V AP: COMPARE AND CONTRAST RCRA AND CERCLA
• Right: RCRA is about preventing hazardous waste problems. It identifies what’s hazardous and how to handle it. CERCLA is designed to clean up hazardous waste problems. It’s called Superfund.
• (What’s vague? What needs clarification? What details can you add to show off mastery?)
AP DETAILSRCRA
Sanitary landfills Defined hazardous waste: toxic,
flammable, reactive, corrosive Required cradle to grave
management of hazmat 95% of materials are still
“linguistically detoxified” – high level nuclear waste, household hazardous wastes, mining and fracking wastes
CERCLA• Identifies and prioritizes hazmat sites
• Toxicity, exposure, size
• National Priorities List
• Seeks responsible parties for payment
• Companies
• Taxpayers
• Remediates sites
• Mechanical , Phytoremediation, bioremediation