3. Are landfills a solution to the garbage disposal problem of a country-State advantages &
disadvantages of it. (Paste relevant pictures)
moriral
Answers
Explanation:
A landfill site (also known as a tip, dump, rubbish dump, garbage dump, or dumping ground, and in archeology as a midden) is a site for the disposal of waste materials. Landfill is the oldest and most common form of waste disposal, although the systematic burial of the waste with daily, intermediate and final covers began in 1940s.In the past, refuse was simply left in piles or thrown into pits.
Some landfill sites are also used for waste management purposes, such as temporary storage, consolidation and transfer, or for various stages of processing waste material, such as sorting, treatment, or recycling. Unless they are stabilized, landfills may experience severe shaking or soil liquefaction of the ground during a large earthquake.
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Answer :
Although landfilling is not a perfect solution for waste management, it prevents urban and rural pollution. Rather than polluting the streets and drains of cities, the waste is collected at one convenient location and can be segregated into different groups according to its importance towards recycling.
Advantages
Cheap to construct
Simple to construct
Easy to operate
Cheap to operate
Low business risk
Disadvantages
Leachate leaks into the ground, even with the best liners
Methane is produced by decomposing putrescible waste, adding to the greenhouse effect
The embodied energy within the materials is mostly lost forever, whereas keeping them in the resource cycle retains some of that energy
Materials which may become scarce in the future will be tremendously complex to re extract because they will be buried underneath thousands tonnes of heteregeneous material.
They use a small amount of land, for which future uses are limited for about 100 years