Tag: waste generation and management

Questions Related to waste generation and management

Which is the best method to dispose off biological wastes from hospitals ?

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. Incineration

  2. Landfill

  3. Recycling

  4. Composting

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Correct Option: A
Explanation:

The burning of a substance at high temperature to form ash is called incineration. It is used to destroy biological waste. All the organic matter present in the waste is removed as carbon dioxide and water vapour.

Which method of solid waste disposal is known as hygienic method?

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. Incineration

  2. Landfilling

  3. Pulverization

  4. Composition

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Correct Option: D

Biological processes for the treatment of industrial wastes for the safe disposal, can be categorized into aerobic as well anaerobic process.

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. True

  2. False

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Correct Option: A
Explanation:
Microorganisms already present in wastewater treatment feed on the complex substances in the wastewater, converting them into simpler substances, improving treatment. Biological wastewater treatment is the use of bacteria to degrade and decompose organic materials during treatment. The microbial community is the heart of any wastewater treatment facility. If the treatment system is having a problem, it’s critical to target and fix the root cause: A microbial community that isn’t performing well.
Due to their growth, adaptability, and resilience, wastewater treatment systems rely on microorganisms to degrade organic material and produce clear effluent water. By harnessing the ability of microorganisms to tackle the source of larger issues—degrading odor-causing compounds, for example—biological wastewater treatment offers major advantages over alternative treatment strategies:
Lower operating costs compared to alternatives. Efficient degradation and removal of organic and inorganic compounds. Improved flexibility to handle a wide range of wastewater characteristics and flows.
However, the key to any biological treatment system is ensuring that the existing microbial community has the right conditions to grow.

The total solid matter washed into the sea is approximately

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. 300 million tonnes

  2. 1300 million tonnes

  3. 2300 million tonnes

  4. 3300 million tonnes

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Correct Option: A

Scrubbers were used 

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. To make air free from microorganisms.

  2. To make air free from dust and gases.

  3. To make air free from solid particles.

  4. None of the above.

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Correct Option: B

What measures should be taken for waste disposal?

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. Segregation of biodegradable and non-biodegradable wastes.

  2. Safe disposal of plastic bags.

  3. A compost pit for kitchen wastes.

  4. All of the above.

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Correct Option: D
Explanation:
Measures for disposal of wastes:
(a) Segregation of biodegradable and non-biodegradable wastes.
(b) Safe disposal of plastic bags.
(c) Vegetable/fruit peels can be placed near trees/plants, which on decomposition will enrich the soil with nutrients.
(d) Give paper wastes for recycling.
(e) Prepare a compost pit for kitchen wastes.

Use of sewage, domestic waste, farm yard manure, etc. will decrease the fertility of the degraded lands.

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. True

  2. False

  3. Nither

  4. Either

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Correct Option: B

Why is improper disposal of waste a curse to environment?

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. Wastes pollute our environment

  2. Waste has very harmful effect on the living organisms

  3. Waste decreases the fertility of the soil

  4. All of the above

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Correct Option: C
Explanation:
Improper disposal of waste pollutes our environment (air, water and soil). Improper waste storage or disposal frequently contaminates surface ground water supplies. The radioactive waste causes harmful effect on the living organism. The non-biodegradable waste decreases the microbial flora of the soil.
So, the correct answer is option D.

Which solid waste disposal mehod is cheaper and simpler?

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. Pulverization

  2. Compositing

  3. Sanitary Landfilling

  4. Incineration

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Correct Option: C

Which of the following are environmental friendly practices?

biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

  1. Carrying cloth bags for shopping

  2. Switching off light and fans when not in use

  3. Using public transport

  4. All the above

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Correct Option: D