Explain land filling sites in brief.
Answers
A landfill site (also known as a tip, dump, rubbish dump, garbage dump or dumping ground and historically as a midden) is a site for the disposal of waste materials by burial. It is the oldest form of waste treatment (although the burial part is modern; historically, refuse was just left in piles or thrown into pits).
Land Filling Sites :
In Land Filling Sites, the degradable wastes are transferred. Usually, such sites are in urban areas.
The land filling sites are away from the residential areas for the hygienic reasons. Here, large pits are dug in open spaces.
These pits are lined with plastic sheets. Therefore, the leaching of toxic and harmful materials is avoided to reduce the chance of soil pollution due to leachates.
Compressed waste is put in the pit and is covered with layers of soil, saw dust, leafy waste.
Specific biochemical substances are added for speedy decomposition.
Bioreactors which are mixtures of bacteria are mixed at some places.
Soil microbes and other top layers decompose the waste.
Soil slurry is used to seal the pits completely.
After a certain period, best quality compost is formed. Such land filling sites can be reused after the removal of compost.
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