The biodegradable wastes in a landfill can be expected to degrade in about: a) 5

Question

The biodegradable wastes in a landfill can be expected to degrade in about:
a) 5 years
b) 10 years
c) 20 years
d) 40 years
e) 50 years or more

The best solid waste disposal option for a typical community in the USA is
a) recycling
b) incineration
c) landfilling
d) composting
e) a combination of some of the above methods

Leachate from municipal waste landfills are often pre-treated before it can be allowed at a sewage treatment plant because:

I. The nutrient content is too high
II. It contains heavy metals which are toxic to bacteria
III. It may contain toxic organics

a) I only
b) II only
c) III only
d) All of the above
e) None of the above

Explanation / Answer

The biodegradable wastes in a landfill can be expected to degrade in about:
e) 50 years or more ---------------------------- The best solid waste disposal option for a typical community in the USA is
e) a combination of some of the above methods
----------------------- Leachate from municipal waste landfills are often pre-treated before it can be allowed at a sewage treatment plant because:
d) All of the above ---------------------------- The best solid waste disposal option for a typical community in the USA is
e) a combination of some of the above methods
----------------------- Leachate from municipal waste landfills are often pre-treated before it can be allowed at a sewage treatment plant because:
d) All of the above

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