Moisture is a major menace for the fertilizer industry. Most commercial fertilizers especially, those that have a high concentration of nutrients, are hygroscopic and thus have a high solubility in water. So they readily absorb water vapour or moisture during production, storage and bagging and form a saturated solution leading to caking, oozing, lumping. The end result is often qualitative and quantitative loss.
Fertilizer being highly hygroscopic absorbs moisture from the surrounding air during storage. This leads to the following problems:
The relative humidity in the Fertilizer Storage Area should be maintained at 35± 5% at about 27°C.
To overcome the problems arising out of hygroscopic nature of fertilizers, it is necessary to condition the air inside the warehouse and storage sites so that the fertilizer do not absorb moisture from the atmosphere. Bry-Air
Dehumidifiers maintain these conditions with ease irrespective of ambient temperature.
Dehumidification is essential/critical in the following areas: