CHAPTER XV. 



THE FILTRATION OF THE JUICE. 



In a previous chapter, it was shown how the juice was separated into a 

 partially clear liquid and into a dirty liquor, formed out of the settlings and 

 the floating scum removed from the surface of the juice in the clarifiers ; 



FIG. 151. 



roughly ahout 90 per cent, of the juice will he obtained in the clear liquor 

 and 10 per cent, in the scums, the latter containing about 10 per cent, of 

 suspended solid matter. The scums are received in tanks where they are 

 limed and allowed to settle, the clear supernatant liquor being decanted and 

 added to the main bulk of the juice ; the scums are then passed through the 

 filter presses, the clear filtered liqnor being passed on to the evaporators. 



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