Studies on the use of dry earth as a contact medium for absorbing moisture from paddy.

TL;DRAbstract

The possibility of drying paddy by keeping it in contact with pre-dried moisture absorbing media was investigated. Fullers earth, Bentonite, sawdust, sand, salt, black earth and red earth were tried as contact media. The last 2 were found to be more effective than the others. Data on rate of drying, effect of varying the ratio of earth to paddy, suitability of using the earth repeatedly, effect of temp. of contact medium, and crack formation and milling breakage of dried paddy were collected. Drying paddy continuously from 20 to 12% moisture in 3 steps in contact with dry black earth was successfully carried out. Black earth was found to be superior to red earth in view of its better sorptive property.

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