Chapter 23 Waste

A benefit of sanitary landfills over open dumps is that?
a. clay liners at the bottom of the landfill help prevent groundwater pollution.
b. a soil cover minimizes the escape and dispersal of offensive odors.
c. they have systems designed to collect leachate.
d. they tend to have fewer rodents than open dumps.
(All of these statements are correct )
A good example of source reduction would be:
c. the lighter weight of aluminum cans compared to 30 years ago. Correct
A significant problem with waste incineration is that:
c. heavy metals in the fly ash must be disposed of in a hazardous waste landfill. Correct
All of the following are major categories of hazardous waste EXCEPT:
sewage
All of the following are possible problems associated with incineration EXCEPT:
production of heat to produce electricity
Bioremediation:
d. involves the use of either microorganisms or plants to clean up a contaminated site. Correct
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Every ton of recycled paper saves approximately:
a. 17 trees.
b. 7000 gal of water.
c. 4100 kilowatt-hours of energy.
d. 3 cubic yards of landfill space.
( All of these choices are correct)
Green chemistry can play a significant role in waste management by:
d. reducing the amount of hazardous materials used in industrial processes.
Hazardous waste accounts for approximately what percent of the U.S. waste stream?
1%
Integrated waste management refers to:
d. waste management techniques that involve reusing, recycling, and reducing. Correct
One of the problems associated with sanitary landfills is:
the possibility of a methane gas explosion
One reason that only a small percentage of plastic is recycled is that:
e. there are many different kinds of plastic found in consumer products. Correct
Organic waste can be converted into valuable soil conditioners through the process of:
composting
Over half of the solid waste produced in the United States is disposed of:
in sanitary landfills
The largest dioxin polluters in the United States are probably:
hospital waste incinerators
The largest single component of municipal solid waste in the United States is:
paper products
The materials in municipal solid waste that are best for incineration are:
paper, plastic, and rubber
The three largest producers of solid waste in the United States are:
agriculture, industry and mining
Tires are a problem in sanitary landfills because they:
c. collect water and provide a good breeding place for mosquitoes. Correct
What factors should be considered to make an “ideal” sanitary landfill?
a. geology
b. proximity to nearby surface and ground water
c. proximity to population centers, but far enough to not be offensive
d. does not require high transportation costs to deliver solid waste
(All of these statements are correct)
Which of the following acts contains provisions that attempt to reduce the amount of pollution at the point of origin, rather than mitigating the damage caused by the production and release of pollutants into the environment?
pollution prevention act
Which of the following correctly identifies one of the goals of waste prevention?
increased reuse of products
Which of the following represent potential markets for compost from municipal solid waste composting programs?
a. landscapers
b. greenhouses
c. golf courses
d. farmers
(All of these choices are correct)
Which of the following statements about landfills is FALSE?
a. Most sanitary landfills in operation today meet current standards for new landfills. Correct
Which of the following statements does NOT explain why there are fewer sanitary landfills today than 20 years ago?
d. Fewer landfills are needed because less municipal solid waste is produced today than in the past. Correct
Who pays for the cleanup of toxic sites on the Superfund National Priorities List?
a. those who transported wastes to the site
b. those who dumped wastes on the site
c. prior owners of the site
d. current owners of the site
(all of these choices are correct)
Why are refillable glass beverage bottles rarely used in the United States today?
b. transportation costs of heavy bottles to and from centralized bottling plants Correct