1. DO NOW

2. Waste Management

3. Bottled Water Backlash

4. Waste
Any unwanted material or substance that results from a human activity or process
3 types
Municipal Solid Waste – nonliquid waste that comes from homes or small businesses = “Trash/Garbage”
Industrial Waste – comes from producing consumer goods, mining, agriculture, or petroleum extraction
Hazardous Waste – solid or liquid waste that is toxic, reactive, flammable, or corrosive.

5. Municipal Solid Waste
Includes paper, tires, food scraps, litter, old appliances, and everything in between
Average American generates more than 2.0 kg (4.5 lbs) trash a day
= 745 kg (1643 lbs) a year

6. Methods of Solid Waste Disposal
Historically – dumping and burning trash was common.
Eventually exposure to toxic fumes and poor smelling areas led to change
Now we have Sanitary Landfills
Waste is buried in the ground and designed to prevent contamination of water and soil nearby
Facilities must also treat dissolving trash that mixes with rainwater – called Leachate

7. Landfills Benefits Costs
Puts waste in one location and is stacked on top of itself to take up as little room as possible
Process helps speed decomposition, reduces odor, and reduces infestation of pests
New technologies are using landfill gas (methane) produced as primary source of energy
Leachate will eventually escape and will pollute nearby water systems
Finding suitable locations for new landfills. Existing neighborhoods do not want it in their “backyard”

8. Hazardous Waste 3 main ways to dispose of hazardous waste
1) Landfills – if not managed properly can lead to entire area toxic
2) Surface Impoundment – shallow pits lined with plastic and clay mixed with water. Once water evaporates it leaves hazardous waste on bottom. Used for only temporary solutions
3) Deep-Well Injection – deep drills inject waste deep underground

9. Waste Reduction
Best way to manage solid waste is to reduce the amount we generate
1) Reduce Packaging – choose goods with minimal packaging
buy in bulk, reduce size of goods and materials
2) Reduce use of Nonbiodegradeble plastics – ones that don’t decompose
Example -Plastic grocery bags and Styrofoam

10. Waste Reduction
3) Design Goods to Last – increase the lifetime of products
Limit disposable products
4) Financial Incentives – Get or Give money to reduce waste
Pay for home trash pickup based on how much you throw away
Get money back for returning bottles and cans

11. Waste Recovery
Composting – conversion of organic waste into mulch through natural decomposition
Allows creation of new nutrient rich soil through natural cycles
Recycling - collection of materials that can be broken down and made into new items

12. 3 Steps to Recycling

13. Solid Waste WebQuest