Are landfills a solution to the garbage disposal problem of a country-State advantages & disadvantages of it.
Answers
Answer:
A landfill is an engineered pit, in which layers of solid waste are filled, compacted and covered for final disposal. It is lined at the bottom to prevent groundwater pollution. Engineered landfills consist of a lined bottom; a leachate collection and treatment system; groundwater monitoring; gas extraction (the gas is flared or used for energy production) and a cap system. The capacity is planned and the site is chosen based on an environmental risk assessment study (UNEP 2002). There are also landfills specially designed to encourage anaerobic biodegradation of the organic fraction of the waste for biogas production by monitoring the oxygen conditions and moisture content. Landfills need expert design as well as skilled operators and a proper management to guarantee their functionality.
Advantages:
1.Effective disposal method if managed well.
2.Sanitary disposal method if managed effectively.
3.Energy production and fast degradation if designed as a bioreactor landfill.
Disadvantages:
1.Fills up quickly if waste is not reduced and reusable waste is not collected separately and recycled.
2..A reasonably large area is required.
3.Risk of groundwater contamination if not sealed correctly or the liner system is damaged.
4.High costs for high-tech landfills.
5.If not managed well, there is a risk of the landfill degenerating into an open dump.
6.Once the landfill site is shut down O&M and monitoring must continue for the following 50 to 100 years.
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Answer:
landfills are not a solution to garbage disposal
Explanation:
it does more harm than good,
advantages-
1)helps only in containing garbage
disadvantages-
1)contaminates the atmosphere
2) makes the surrounding soil toxic which can't be used for farming etc.
3) produces foul smell in surrounding areas
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