Heavy Metals Removal in Drinking Water
Bonechar - Removal Efficiency Index of Heavy Metals*
 
Metal 

Capacity

(mg/g) 

Linear

Velocity

(m3/hr)

 Removal

Efficiency

(%)

 Aluminum  24  1  > 80
 Arenic III  30  0.5  > 80
 Arsenic V  26  0.5  > 80
 Cadmium  15  0.5  > 80
 Chromium III  15  0.5  > 80
 Chromium IV  8  0.5  ≈ 50
 Copper  50  3  > 90
 Iron  30  3  > 80
 Lead  151  3  > 90
 Manganese   50  3  > 80
 Mercury  *  0.5  ≈ 50#
 Nickle  45  3  > 90
 Silver  *  0.5  ≈ 50#
 Zinc  37  3  > 90
* Undetermined capacity due to the nature of adsorption, does convert to pure metal from which recovery may be possible.
# Highly dependent on other species in the stream.
All figures are subject to ongoing research and updating.
*Figures courtesy of Glasgow University, UK. 
SEE ALSO Bone Char Adsorption of Metals and Non-Metals