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Table 1

Analysis of field data from breathable laminate-lined 40 and 208 L drums

Verma Sail (Drum 1)Vijay Nagar (Drum 2)Govind Nagar (Drum 3)Vijay Nagar Maline (Drum 4)
Field test     
 Average loading rate (kg/day) 5.0 5.0 1.0 1.0 
 Average drying rate (kg/day) 0.8 0.9 0.32 0.30 
 Total drum volume (L) 208 208 40 40 
 Days to fill (calculated with laminate) 49 51 59 57 
 Days to fill (calculated without laminate) 42 42 40 40 
Stagnant film model with meteorological data 
 Predicted drying rate (kg/day 1.6 1.4 0.39 0.41 
 Percentage error between field observed and predicted drying rate − 52 − 33 −18.2 −28 
When the drum is full of fresh FS, it can be left to dry before transportation and treatment. The time needed to dry a full laminate-lined drum will be 
 Solids content of fresh FS (%) 4.0 4.0 16 17 
 Water content of initial drum (kg) 200 200 34 33 
 Days to empty without additional loading (calculated) 259 219 106 112 
Verma Sail (Drum 1)Vijay Nagar (Drum 2)Govind Nagar (Drum 3)Vijay Nagar Maline (Drum 4)
Field test     
 Average loading rate (kg/day) 5.0 5.0 1.0 1.0 
 Average drying rate (kg/day) 0.8 0.9 0.32 0.30 
 Total drum volume (L) 208 208 40 40 
 Days to fill (calculated with laminate) 49 51 59 57 
 Days to fill (calculated without laminate) 42 42 40 40 
Stagnant film model with meteorological data 
 Predicted drying rate (kg/day 1.6 1.4 0.39 0.41 
 Percentage error between field observed and predicted drying rate − 52 − 33 −18.2 −28 
When the drum is full of fresh FS, it can be left to dry before transportation and treatment. The time needed to dry a full laminate-lined drum will be 
 Solids content of fresh FS (%) 4.0 4.0 16 17 
 Water content of initial drum (kg) 200 200 34 33 
 Days to empty without additional loading (calculated) 259 219 106 112 
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