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प्रश्न
State the scientific and eco-friendly methods of waste management.
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उत्तर
The scientific and eco-friendly methods of waste management are:
- Waste separation: This is the first step in waste management. Classification of dry waste and wet waste is very important for further processing of waste.
- Composting: Decomposing kitchen waste in small pits in the backyard, garden, or terrace is called composting. Good quality compost can be made by composting food scraps, fruit peels, vegetables, etc.
- Vermicomposting: In this method, solid waste is rapidly decomposed with the help of earthworms. Manure obtained from vermicomposting is useful for agriculture, as it is rich in nutrients.
- Secured landfill: In this method, the waste is kept in a special place safely away from human habitation. In such places, the ground is covered with plastic and clay so that the waste water does not seep into the ground.
- Pyrolysis: It is a method for solid waste management. It is the chemical decomposition of solid waste by heat under high pressure, and the end products of pyrolysis are used to produce steam and electricity.
- The combustion of the furnace/bhashimation: This is an industrial method in which the waste is converted into a simple solid or aerodynamic form. In this method, the garbage in the furnace is infused at high temperatures. Generally, this method is used for biological medical waste.
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संबंधित प्रश्न
Match the items in column ‘A’ with the proper ones in column ‘B’ and explain their impact on the environment.
| Column ‘A’ | Column ‘B’ |
| 1. Harmful waste | a. Glass, rubber, carry bags, etc. |
| 2. Domestic waste | b. Chemicals, pigments, ash, etc. |
| 3. Biomedical waste | c. Radioactive material |
| 4. Industrial waste | d. Leftover food, vegetables, peelings of fruits. |
| 5. Urban waste | e. Bandages, cotton, needles, etc. |
What is known as waste?
What are sources of waste?
How is solid waste disposed of in ah incinerator?
What is waste disposal?
Study the image below and write down three items you have at home in each category of waste.
Recyclable: ______
Explain the link between waste and dangerous diseases like dengue and malaria?
What are the sources of solid wastes? How are solid wastes managed?
The use of microorganism metabolism to remove pollutants such as oil spills in the water bodies is known as ____________.
Excessive exposure to ultraviolet radiation causes ______.
Plastic bags and food packaging is a ______ item.
What is waste collection?
What is transportation?
What is compost?
The burning of solid waste in ______ is called incineration.
Match the following:
| i. | Avoid the usage | a. | Recycle |
| ii. | Sharing newspapers | b. | Incinerate |
| iii. | Using fountain pens | c. | Buying packaged food |
| iv. | Using old clothes to make paper | d. | Reducing |
| v. | Human anatomical waste | e. | Reusing |
What is Landfill?
India produces 532 million kilos of solid waste every day.
What are the two major types of solid wastes?
