Bodyfeed is the filteraid dosed into the liquor to be passed through the filter. Bodyfeed aids in keeping the filtercake porous during filtration by continuously allowing a build up of fresh filteraid onto the filtercake. A rule of thumb for bodyfeed dosage stipulates that the volume of filteraid added should be equivalent to the volume of solids present in the unfiltered liquor.
|Volume solids of unfiltered solution||= 10%|
|Volume of solution to be filtered||= 1m3|
|Volume of bodyfeed filteraid||= 1m3 X 10%|
|= 0.1m3 / m3|
|Mass of bodyfeed filteraid||= 0.1m3 X PCD|
|= 0.1m3 X 100kg/m3|
|= 10 kg filteraid|