GC
Filtral Activated Alumina for
Fluoride and Heavy Metal Removal
GC Filtral
is a granular activated alumina designed for the
removal of fluoride and other heavy metals from
water. Highly adsorbent, the GC Filtral is able
to adsorb as much as 1.4g fluoride per 100g alumina
with less than 1 ppm fluoride evident in the water
effluent.
Conditioning of the GC Filtral
with dilute aluminum sulfate prior to use greatly
enhances performance. The adsorbent needs only
to be contacted for one hour with 29g/L of aluminum
sulfate (Al2(So4)3,18 H2O) solution and it is
ready for use.
The GC Filtral is available for
sale in bulk or in 55, 85 and 110 gallon treatment
units. These filters come complete with internal
plumbing and are ready for installation. If larger
flow rate systems are needed, please contact our
office.
Chemical Analysis
Weight %
Soda as Na2O:
0.4
Iron as Fe203:
0.015
Silicon as S102:
0.02
Titanium as TlO2:
0.002
Loss on Ignition (300-1100oC):
5.5-6
Physical Properties
Bulk Density, g/cm3:
0.67
lbs./cu.ft.:
42
Specific Surface Area, m2/g:
350-380
Pore Volume, cm3/g:
0.44
Static Water Adsorption, %:
19-22
*Standard packaging
is in 55 lb. bags. Other packaging is available
upon request.
CATION/ANION ADSORPTION LIST
CATIONS
ANIONS
THORIUM (+2)
OH (-1)
ALUMINUM (+3)
A5O4 (-3)
URANIUM (+4)
PO4 (-3)
ZIRCONIUM (+2)
C2O4 (-2)
CERIUM (+4)
F (-1)
IRON (+3)
SO3 (-2)
CERIUM (+3)
Fe(CN)6 (-4)
TITANIUM (+3)
CrO4 (-2)
MERCURY (+2)
S2O3 (-2)
URANIUM OXIDE (+2)
SO4 (-1)
LEAD (+2)
Fe(CN)6 (-3)
COPPER (+2)
Cr2O7 (-2)
SILVER
NO2
ZINC (+2)
CNS (-1)
COBALT (+2)
I (-1)
IRON (+2)
BR (-1)
NICKEL (+2)
CI (-1)
THALLIUM (+1)
NO3 (-1)
MANGANESE (+2)
MnO4 (-1)
CIO4 (-1)
CH3C00 (-1)
S2 (-1)
Caution! Wet activated carbon removes oxygen from
air causing a severe hazard to workers inside
carbon vessels. Confined space/low oxygen procedures
should be put in place before any entry is made.
Such procedures should comply with all applicable
Local, State and Federal guidelines.
