List of Articles equilibrium time Open Access Article Abstract Page Full-Text 1 - Effect of concentration on efficiency and adsorption equilibrium time of lead from aqueous solution by rice husk adsorbent Hasan Jamali Armandi Zaman Shamohamadi Heidari Open Access Article Abstract Page Full-Text 2 - Comparisons of Rice Husk and Activated Carbon in Removal of Cadmium from Aqueous Solution in Low Concentration Z. Shamohammadi Heidari