42 BULLETIN 1370, U. S. DEPARTMENT OF AGRICULTURE 
Tie “oud? oor 
sedimented material, 
that collects at the 
bottom of the defeca- 
tors, and the scums, 
which float on the 
surface of the small 
quantity of juice re- 
maining in the defe- 
cator, are transferred 
to the mud-mixing 
tank, where they are 
diluted with water 
and pumped to the 
filter presses. The 
tered juice goes to 
the evaporator sup- 
ply tank. The mud 
rom the filter presses 
is dumped and hauled 
: : ~ away; its principal 
427-097 ap = - value is as a low- 
gerade fertilizer for 
a : = cane lands. 
Fic. 11.—Building diagram for a 50-ton sirup mill The clear j wice 
passes from the evap- 
GROUND FL00€ LIME: 
orator supply tank ~ 
to open evaporators, 
where it is concen- 
trated to a low-density 
sirup. At this stage it 
is drawn off into sirup- 
settling tanks, where 
‘it is allowed to sedi- 
ment. The clear sirup 
is then pumped back 
to the evaporators 
and tue boiling is fin- 
ished. The final ad 
is carried throug 
either sirup coolers or 
an open canal to stor- 
age tanks, from which 
it is drawn for packing 
or shipment in bulk. 
The turbid sirup 
from the bottom of 
the sirup-sedimenting 
tanks is returned to 
the raw-juice tank 
and agaim passed 
through the process. 
It is usually diluted  Zigpameme 
at the time the sedi- Fig, 12.—Building diagram for a 100-ton sirup mill 
