Which of the following statements is/are correct regarding sanitary land filling of municipal solid waste disposal?

1. Leachate is a coloured, poisonous and polluted liquid.

2. Leachate may seep to the ground water-table to contaminate the ground water

3. Leachate is produced during peak summer and is a desirable product.

Explanation:

Sanitary Landfilling of Municipal Solid Waste

Sanitary landfilling is a method used for the disposal of municipal solid waste. It involves burying the waste in a designated area, managing it in an environmentally sound manner. One of the by-products of this process is leachate, which is a liquid that forms when waste breaks down and water filters through the landfill.

• Leachate Characteristics: It is typically a coloured, poisonous, and polluted liquid.

• Groundwater Contamination: Leachate can seep into the groundwater table and contaminate groundwater sources.

• Leachate Production: It is not produced during peak summer and is not a desirable product.

Analyzing the Given Statements

1. "Leachate is a coloured, poisonous and polluted liquid." (Correct)

   • Leachate is indeed a by-product of landfill sites, and it is known for its colored, toxic, and contaminated nature.

2. "Leachate may seep to the groundwater-table to contaminate the groundwater." (Correct)

   • If not properly managed, leachate can infiltrate the ground and reach groundwater sources, causing contamination.

3. "Leachate is produced during peak summer and is a desirable product." (Incorrect)

   • Leachate is not limited to production during peak summer; it can be produced year-round due to the decomposition of waste and infiltration of rainwater.

   • Leachate is not a desirable product due to its hazardous nature.

Conclusion

Based on the analysis, the correct option is:

Option 4: Statements 1 and 2 are correct, while statement 3 is incorrect.