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Question
Observe the following figure and answer the questions :
- Identify the process shown in the figure.
- Explain the process in short.
Solution
- Modern land filling site
- Process:
- Degradable waste being accumulated in urban areas is used for this purpose.
- Large pits are dug in open spaces far away from the residential area and those pits are lined with plastic sheets as a precaution against the pollution of soil due to leaching of toxic and harmful materials.
- Compressed waste is dumped in the pit. It is covered with layers of soil, saw dust, leafy waste and specific biochemicals. Bioreactors are mixed in some places.
- Microbes present in soil and other top layers decompose the waste. Completely filled pit is sealed with soil slurry.
- Best quality compost is formed after few days. Such land filling sites can be reused after removal of compost.
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