What is Solid Waste
•Any material that we discard, that is not liquid or gas, is solid waste
–Municipal Solid Waste (MSW):
•Solid waste from home or office
–Industrial Solid Waste:
•Solid waste produced from Mines, Agriculture or Industry
•Any material that we discard, that is not liquid or gas, is solid waste
–Municipal Solid Waste (MSW):
•Solid waste from home or office
–Industrial Solid Waste:
•Solid waste produced from Mines, Agriculture or Industry
where is away?
any material we discard, that is not liquid or gas, is solid waste
any material we discard, that is not liquid or gas, is solid waste
- municipal- made from home office and school
- industrial- solid waste produced from mines and agriculture
- hazardous waste- can cause harm to human health or environment
- ignitability, corrosivity, reactivity, toxicity
- reuse, recycling, combustion, landfilling and incineration
- methods of dealing with municipal waste: at home, open dump, sanitary landfill, incineration, ocean dumping
- unsanitary, draws pests, harmful runoff, toxic gases
- still accounts for half of solid wastes
- several thousand open dumps in USA
- layer cmpacted trash covered with laer of earth once a day and thicker layer when site is full
- requires impermeable barriers to stop escape of leachates
- gases produced by decomposing garbage needs venting
- methane production
- avoid: swampy areas fracture and high water table
- gases: methane ammonia hydrogen sulfide
- heavy metals: lead chromium
- vegetation can pick up toxic substances
- produces toxic gases
- can generate heat
- "out of sight out of mind"
- contributes to ocean pollution
- can wash back on beaches and cause death to marine animals
- banned in 1988
- recycle of glass containers
- plastic
- converted to fibers
- junked cars
- recycle 83 million tons
- carbon dioxide emissions decreased
- clean air water land and better health
Chapter 12 “Waste” Notes—Guiding Questions
p. 303-309
(1) What is solid waste? How much of it do we produce in the U.S. each year? Solid wastes any discarded material that is not liquid or gas. Also Americans generate more than 10 billion tons of solid waste.
(2) Why has the amount of waste produced doubled in the U.S. since the 1960s? Cause also other countries are throwing away increasing amount of trash.
(3) Compare and contrast biodegradable versus non biodegradable materials. Provide an example of each as well. A Biodegradeble is a material that can be broken down by living things into simpler chemicals that can be consumed by living things. A non-biodegradable is materials that can cause problems cause there not found in nature.
(4) Where does most of our solid waste come from (about 70%)? About 70% of the solid waste is produced in the United States
(5) What is municipal solid waste? What makes up the largest portion of this waste (Figure 12-8)? That is solid waste produced by households and business
(6) What percentage of our trash is recycled? Only 27% percent of it is recycled.
(7) Where does our trash that is not recycled go (you can use Figure 12-9)?The waste goes to the landfills
(8) Describe three problems with storing waste in landfills. The biggest problem is leachate. its water that contains toxic chemicals dissolved in waste. Then another problem is
(9) When is NC estimated to run out of landfill space (use Figure 12-12)?
(10) Describe two problems with incinerating waste.
p. 303-309
(1) What is solid waste? How much of it do we produce in the U.S. each year? Solid wastes any discarded material that is not liquid or gas. Also Americans generate more than 10 billion tons of solid waste.
(2) Why has the amount of waste produced doubled in the U.S. since the 1960s? Cause also other countries are throwing away increasing amount of trash.
(3) Compare and contrast biodegradable versus non biodegradable materials. Provide an example of each as well. A Biodegradeble is a material that can be broken down by living things into simpler chemicals that can be consumed by living things. A non-biodegradable is materials that can cause problems cause there not found in nature.
(4) Where does most of our solid waste come from (about 70%)? About 70% of the solid waste is produced in the United States
(5) What is municipal solid waste? What makes up the largest portion of this waste (Figure 12-8)? That is solid waste produced by households and business
(6) What percentage of our trash is recycled? Only 27% percent of it is recycled.
(7) Where does our trash that is not recycled go (you can use Figure 12-9)?The waste goes to the landfills
(8) Describe three problems with storing waste in landfills. The biggest problem is leachate. its water that contains toxic chemicals dissolved in waste. Then another problem is
(9) When is NC estimated to run out of landfill space (use Figure 12-12)?
(10) Describe two problems with incinerating waste.