95 



from the 3rd at 27". As this syrup conies out of this 

 apparatus at the relatively low temperature of 149" 7 

 arid that the maximum effect of the charcoal is pro- 

 duced at an intermediate t3mperature between 160" 

 and 190, it must he heated to boiling point and then 

 sent to the filters. 



Syrup at 27 B. contains M) per cent of solid mat- 

 ters in solution and 50 of water. 



In our factory working 200,000 pounds of beets 

 per day, 25,000 gallons of juice at 6 B. are produced 

 weighing at 1.0435 of density, 203,700 pounds. This 

 juice contains : 



Solid matters in solution.. 20,870 Ihs. 



Water 187,830 u or 23,300 gals. 



To reach 27>, 167,000 pounds of water or 20,800 

 gallons have to be evaporated. There remains 41,- 

 740 pounds of syrup at 1,250 of density or 420(1 

 gallons. 



5. SECOND FILTRATION. 



The working of the second filtration is the same 

 MS the first. The syrup remains in contact with the 

 charcoal for half an hour. Each filter is used for (v 

 hours. 



Four filters per 24 hours are always used, so 

 that two are always in operation, one lVr the syrup, 

 the other for the jqice, whilst the other two are used 

 for cleaning and charging. 



The syrup leaves the filter clarified and colorless. 



