ADSORBENTS FOR CD REMOVAL FROM WATER WASTE: A SHORT REVIEW OF THE RECENT DEVELOPMENT - Management of Hazardous Residues Containing Cd - page 26

Table 2. Adsorption properties for removing Cd 2+ from aqueous solution
by activated carbons obtained from agricultural wastes

Material

Prepared
activated carbon
(PAC)

1556.9 104.17 4h 6 - 30 [111]

Sulfurized PAC
(SPAC)

1257.1 142.86 4h 6 - 30 [111]

Activated carbon
derived from
Ceiba pentandra
hulls

521 19.5 40min 6 88 30 [104]

Husk-based
activated carbon
(AC)

2.3 180 24h 7 - 25 [102]

Husk-based
carbon (OC)

- 60 24h 7 - 25 [102]

Bamboo charcoal - 12.08 6h 8 - 25 [107]

ZnCl 2 activated
carbon (CZ1:2)

1192 120 24h 7 - 25 [112]

ZnCl 2 activated
carbon (CZ1:1)

958 112 24h 7 - 25 [112]

ZnCl 2 activated
carbon (CZ2:1)

712 66.5 24h 7 - 25 [112]

Steam activated
date pit- 25%
burn-off (CS25)

895 61.9 24h 7 - 25 [112]

Steam activated
date pit- 25%
burn-off (CS40)

1107 105 24h 7 - 25 [112]

Steam activated
date pit- 25%
burn-off (CS55)

977 81.8 24h 7 - 25 [112]