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प्रश्न
What are the sources of solid wastes? How are solid wastes managed?
उत्तर
Solid wastes mainly include municipal wastes, hospital wastes, industrial wastes and e-wastes, etc. The solid wastes are dumped in the soil, which results in landscape pollution. Solid-waste management involves the collection, treatment and proper disposing of solid material that is discarded from the household and industrial activities.
Methods of solid wastes disposal:
- Segregation: It is the separation of different type of waste materials like biodegradable and non-biodegradable wastes.
- Sanitary landfill: Solid wastes are dumped into low lying areas. The layers are compacted by trucks to allow settlement. The waste materials get stabilised in about 2-12 months. The organic matter undergoes decomposition.
- Incineration: It is the burning of non-biodegradable solid wastes (medical wastes) in the properly constructed furnace at high temperature.
- Composting: Biodegradable matter of solid wastes is digested by microbial action or earthworms and converted into humus.
APPEARS IN
संबंधित प्रश्न
Students in a school listened to the news read in the morning assembly that the mountain of garbage in Delhi suddenly exploded and various vehicles got buried under it. Several people were also injured and there was traffic jam all around. In the brain storming session the teacher also discussed this issue and asked the students to find out a solution to the problem of garbage. Finally they arrived at two main points -one is self management of the garbage we produce and the second is to generate less garbage at individual level.
1) Suggest two measures to manage the garbage we produce.
2) As an individual, what can we do to generate the least garbage? Give two points.
3) List two values the teacher instilled in his student in this episode.
What is meant by domestic waste?
Define gaseous waste.
Explain the role of government in waste management.
Study the image below and write down three items you have at home in each category of waste.
Biodegradable ______
Which of the following substances will not be converted to compost when added in a composting pit?
It is best to separate waste into 3 different bins.
What is transportation?
What is Landfill?
Give the Solid Waste Management (SWM) rules.
