The adsorption of heavy metal ions by low cost adsorbents
was evaluated under various conditions such as pH, heavy metal
concentration, mixing speed and adsorbent dose through
both kinetic and isotherm studies. The optimum removal
condition was also identified for each metal ion. Table 1 indicates
the main consistent, primary source, physical structure,
chemical characterization and the primary use of low cost
adsorbents such as rice husk and fly ash