The role of hybrid of tamarind and guar gum in the removal of unwanted metals from waste water

Department of Chemistry, Jai Narian Vyas University, Jodhpur-342 001, Rajasthan, India

E-mail : vikal_chem@yahoo.co.in

Manuscript received 26 August 2011, revised 27 December 201 I, accepted 29 December 2011

The present work is used for the treatment of effluent streams containing Ni^II, Cd^II and Pb^II by hybrid of tamarind and guar gum. Tamarind and guar gum were activated by heat treatment and with concentrated sulphuric acid. The optimum shaking speed, mass of adsorbent, contact time, pH, temperature were determined. The paper also discusses the effect of ratio of tamarind and guar gum as an adsorbent for removal of various heavy metals. The article presents a brief review on the mechanism of heavy metal adsorption by hybrid of tamarind and guar gum. The maximum removal efficiencies were 85% for Ni^II at pH 7, 80% for Cd^II at pH 5 and 88% for Pb^II at pH 5. This article also shows that hybrid is comparatively better than lonely tamarind and guar gum.