Leachate Apes
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what percentage of the trash buried in US landfills is plastic
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10%
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the largest fraction of the wastes buried in American landfills is made up of
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paper
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compared to other developed countries, what amount of garbage do Americans produce on a per capita basis
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twice as much
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the most common solid waste disposal option in the USA is
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landfilling
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on the average, everyone living in America produces about how much solid wastes each day
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5 lbs
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all of the following statement s are true of solid wastes, except:
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in order to significantly reduce solid waste generation, Americans will have to accept a lower standard of living
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by definition, a hazardous waste is waste that is harmful to humans and the environment by virtue of its being
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all of the above
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hazardous waste is defined as any
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any solid, liquid, or gas that is harmful to humans by virtue of its toxicity, flammability, corrosiveness or explosiveness
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in the USA the largest fraction of the solid wastes is produced by
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industries and businesses
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the concept of integrated waste management means
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using both waste reduction and waste management approaches to deal with the solid waste problem
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the first priority of integrated waste management is to
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all of the above
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the least priority of the concept of integrated waste management are all of the following, except
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reuse and recycle waste products
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a secondary priority of the integrated waste management concept includes:
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reuse and recycle products
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all of the following statements are true of municipal solid waste recycling, EXCEPT
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there are some disadvantages to recycling
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which one of these is generally NOT one of the benefits of recycling
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it is the cheapest way to dispose of solid wastes
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closed loop recycling refers to the type of recycling in which
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the products are similar to the wastes being recycled
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one of the main disadvantages of recycling is
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recycling is not a "compete" system because some things cannot be recycled
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which of the following is NOT an advantage of solid waste incineration
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can be located in an urban/residential area
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which one of these is NOT a common disadvantage of solid waste incineration
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incineration is less expensive than other methods
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the percentage of solid wastes that is landfilled in the USA is approx
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50-60%
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landfilling of solid wastes has many advantages including
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all of the above
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all of these statements are true of landfills except
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landfill leachate has less biodegradable materials than sewage
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the biodegradable wastes in a landfill can be expected to degrade in about
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50 years or more
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the best solid waste disposal option for a typical community in the USA is
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a combination of some of the above methods
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the primary law for dealing with hazardous waste issues in the USA is
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the Resource Conservation and the Recovery Act
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the largest generator of hazards wastes in the USA is
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the military
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which one of those will not qualify as hazardous waste when discarded
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sewage sludge
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phytoremediation refers to the use of
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plants to absorb contaminants from the soil or water
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one of the following statements is NOT true of phytoremediation
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it is a very expensive process
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phytostablization, phytodegradation, and phtyoextraction
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biological methods of hazardous waste treatment
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all of the following are advantages of deep well injection of hazardous wastes except
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the injected wastes can never escape from the site
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which one of these statements is NOT true of municipal waste incineration
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produce small amounts of chlorinated organisms like PCBs and dioxin and heavy metals are the main toxic components of the ash
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during the first few years in the life of a municipal waste landfill, it is customary for the BOD of the leachate to be very high and then drop off significantly after about five years. the reason...
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a change takes place in dominant type of bacteria in the landfill
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leachate from municipal waste landfills are often pre-treated before it can be allowed at sewage treatment plants because
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the nutrient content is too high
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properties of a toxic substance
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mercury
