The Choosing Of A Landfill Site

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municipal and hazardous
wastes may be co-deposited in order to gain benefit from municipal waste
decomposition processes. The landfilling of hazardous wastes is a contentious
issue and one on which there is not international consensus.

Further complications arise from the difficulty of classifying wastes accurately,
particularly the distinction between 'hazardous'/'non-hazardous' and of ensuring
that 'inert' wastes are genuinely inert. In practice, many wastes described as
'inert' undergo degradation reactions similar to those of municipal solid waste
(MSW), albeit at lower rates, with consequent environmental risks from gas and
leachate.

Alternatively, landfills can be categorised according to their management
strategy. Four distinct strategies have evolved for the management of landfills
(Hjelmar et al, 1995), their selection being dependent upon attitudes, economic
factors, and geographical location, as well as the nature of the wastes. They
are Total containment; Containment ...

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rate. An environmental
assessment is always necessary to that the impact of the emitted leachate is
acceptable. No active leachate control measures are used. Such sites are only
suitable in certain locations and for certain wastes. A typical example would be
a landfill in a coastal location, receiving an inorganic waste such as bottom
ash from MSW incineration.

D) Unrestricted contaminant release

No control is exerted over either the inflow or the outflow of water. This
strategy occurs by default for MSW, in the form of dumps, in many rural
locations, particularly in less developed countries. It is also in common use
for inert wastes in developed countries.

Options C and D might be ...

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