Question

Which is a suitable mechanism for waste management in the fertilizer industries?

• A. The effluent should be treated before discharge into surrounding environment.
• B. Control air pollution.
• C. Both A and B.
• D. No measures need to be taken.

Answer 1

Answer: (C)

Both A and B.

Effluents and harmful gases are the main wastes which are produced in a fertilizer factory.

Suitable mechanism for waste management are:

(i) For control of gaseous pollutants, combustion equipment is used for pollutants which can be oxidized. 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 equipment. Adsorption is a surface phenomenon and it needs the presence of large solid surface area. Toxic and odoriferous compounds are efficiently removed.

(ii)Three options are available for controlling the effluents:

(a) Control can take place at the point of generation within the factory.

(b) Wastewater can be pre-treated for discharge to municipal treatment systems.

(c) Wastewater can be treated completely at the factory and either reused or discharged directly into receiving waters.

Therefore, the correct answer is option C.