
With reference to bio-toilets used by the Indian Railways, consider the following statements:
- The decomposition of human waste in the bio-toilets is initiated by fungal inoculums.
- Ammonia and water vapour are the only end products in this decomposition which are released into the atmosphere.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Explanation
Both statements are incorrect
- Anaerobic bacteria carry out the decomposition of human waste in bio-toilets.
- The decomposition process produces gases like methane and carbon dioxide, along with water. The treated effluent (liquid) is discharged after disinfection. Hence, ammonia and water vapour are not the only end products.


