1.      Suggest suitable mechanism (s) for waste management in fertiliser industries.

Soln:

To manage waste in fgertiliser industry following steps to be taken.

• For control of gaseous pollutants combustion equipments are used which can be oxidised. The pollutants are exposed to a high temperature in the process. Air pollutants, such as certain gases and vapour and inflammable compounds are controlled through the use' of adsorption equipments. Adsorption is a surface phenomenon and it needs the presence of a large solid surface Toxic and odoriferous compounds are efficiently removed by this process.
• Three options available for controlling the effluents are:

• Control can take place at the point of generation within the

• Waste water can be pre-treated for discharge to municipal treatment

• Waste water can be treated completely at the factory and either reused or discharged directly for receiving