Solid Waste: Classification of Solid Waste and Waste Generation Rate

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Waste

Waste- Any material which becomes unwanted or unusable and after primary use it is discarded

Based on their physical state:

Based on Their Physical State

Classification of Solid Waste

Classification of Solid Waste

Waste Generation Rate

Waste generation rate per capita in Indian cities is given below

Waste Generation Rate
Population range

(million)

Average per capita waste

generation (g/capita/day)

0.1 – 0.5210
0.5 – 1.0250
1.0 – 2.0270
2.0 – 5.0350

Methods of Calculating Waste Generation Rate

  • Load count analysis
  • Weight volume analysis
  • Material balance analysis

Global Composition of Solid Waste

Global Composition of Solid Waste
WastePercentage
Organic46 %
Paper17 %
Plastic10 %
Glass5 %
Metal4 %
Others18 %

Waste Generation in India

  • The per capita waste generation is increasing at the rate of 1.3 % per year.
  • Highest per capita waste of 570grams/day- By Southern states.
  • Least per capita waste of 440grams/day- By Western states

Multiple Choice Questions

1. Which among the following has properties of toxicity, ignitability. Corrosivity, Reactivity?

  1. Organic waste
  2. Hazardous waste
  3. Non-hazardous waste
  4. None of the above

Answer: b

2. Which among the methods of calculating waste generation rate:

  1. Load count analysis
  2. Weight volume analysis
  3. Material balance analysis
  4. All of the above

Answer: d

3. Which among the following has 46 % composition in global waste generation in India?

  1. Organic waste
  2. Paper
  3. Glass
  4. Plastic

Answer: a

4. Which among the following has the highest per capita waste generation in India?

  1. Eastern States
  2. Northern States
  3. Western States
  4. Southern States

Answer: d

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#UGC NTA NET

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