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Waste

Waste . Dirty Jobs . Land Fill . Fresh Kills Landfill. Located in New York, New York Last landfill in New York City, covering over 3,000 acres Closing after 50 years New era for the environment to restore the ecology and natural resources of the entire city Area had really bad odors

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Waste

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  1. Waste

  2. Dirty Jobs • Land Fill

  3. Fresh Kills Landfill • Located in New York, New York • Last landfill in New York City, covering over 3,000 acres • Closing after 50 years • New era for the environment to restore the ecology and natural resources of the entire city • Area had really bad odors • Barges where lined up at all times of the day in order to dump 14,000 tons of waste a day

  4. Define waste Recognize the difference between waste in the natural environment and waste created by humans Describe Municipal Solid Waste (MSW) Know the seven types of Municipal Solid Waste Objectives

  5. What is waste? • Any unwanted or discarded matter • It can be a solid, liquid, or in a gaseous form • A product, material or container is not considered waste until someone throws it away • Today we will focus mainly on solid waste

  6. Waste Facts • Americans create a third of the world’s total waste • Each person creates 44 tons of waste per year • Each person generates 90,000 pounds of waste in a lifetime • Bumper to bumper convoy of garbage trucks • Discarded office paper 12 foot high from coast to coast • Enough plastic film is produced in Texas to shrink wrap the state every year

  7. Where does waste come from? • All living things create waste • In natural systems, trees, animals, and other organisms contribute to waste • Humans create waste as they alter natural systems through extraction, processing, and use of natural resources

  8. Differences in wastes Natural Environment • Fallen branch • Nature processes its own waste • Balance between production & breakdown of organic wastes • Branch will decompose over the years, & return to the soil • There are environmental elements in nature to help with discomposure • The ecosystem remains in balance Human Environment • The tremendous quality & concentration of human solid waste has great demands • Collection, processing, storage, and disposal systems have to be set in place • Organic wastes created by humans (like vegetable peelings) can be processed by nature in a compost pile

  9. Municipal Solid Waste • Is all the waste material from the activities of a city or town • There are seven categories: -Domestic Solid Waste -Commercial Solid Waste -Medical Waste -Municipal Solid Waste -Industrial Solid Waste -Construction & Demolition Solid Waste -Agriculture Solid Waste

  10. What is Domestic Solid Waste? • Solid waste from homes and apartments • It is solid waste from the daily activities of people’s lives • Usually placed in garbage containers • Items include: garbage, rubbish, ashes, and bulky materials

  11. What is Commercial Solid Waste? • Refuse from offices, retail stores, schools, and restaurants • Offices create mostly paper wastes • Most restaurants separately store waste cooking oil for special disposal • Some school wastes may be hazardous from laboratories

  12. What are Medical Wastes? • Include those from human health care and veterinary medicine • Be careful in disposing of syringes, and human bodily fluids and tissues • Over three-fourths of all medical wastes are created by hospitals • Physicians Offices-6% • Dental Offices-2% • Clinics & Labs-13% • Vets-1% • Funeral homes & blood banks-1%

  13. What is Municipal Solid Waste? • Includes materials from cleaning streets and parks, dead animals, abandoned cars, furniture, and wastewater treatment plants

  14. What is Industrial Solid Waste? • Is from manufacturing • It could be large amounts of refuse, such as material that remains from smelting copper or iron • Waste raw materials such as sawmills producing sawdust • Food processing facilities produce waste food and products

  15. What is Construction & Demolition Solid Waste? Construction • Include scraps of lumber • broken brick • pieces of electrical wire • roofing material scraps • unused concrete Demolition • Materials remaining after a building is destroyed • Some materials may be salvaged • May include such items as: -Plaster -Brick -Mortar -Glass

  16. What is Agriculture Solid Waste? • Created in raising animals and growing crops • Most of the wastes are returned to the land to improve the fertility of the soil • The wastes vary depending on the animal • Chicken excrement is used for what? • What is cattle manure used for? • Crop residues that are left in the field decompose and improve productivity of the soil by being plowed under • Crop residues may be used as animal feed • Also includes, bulky items such as worn-out equipment, and junk tractors

  17. Activity • Materials needed -Construction paper -Magazines -Glue -Scissors -Pen or Pencil • Get into groups of three • As a group construct a collage of Municipal Solid Waste using the categories we just talked about • Use the magazines to cut out pictures, words, or cut out letters to make words, in order to show the different types of wastes • When your group has finished, sit quietly until everyone has finished, and we will use the collages to review today’s objectives together

  18. Review Questions • So what did we define waste to be? • What are the differences in natural waste and human waste? • What is the definition of Municipal Solid Waste? • Can anyone name to me again the seven categories of Municipal Solid Waste?

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