STUDY OF NITRATE ADSORPTION CHARACTERISTICS ON RED SOIL

Shashikant.R.Mise, Ramesh Bashetty

Abstract: In this research, adsorption of Nitrate (N-Adsorption) on Red soil has been studied through using batch adsorption techniques. Main objectives of this study are, to study the physical properties of Red soil, detection of Nitrate removal by adsorbent as a function of contact time, adsorbent dosage and pH, to study sorption kinetics. The results of this study showed that the Optimum contact time, dosage and pH for adsorption of Nitrate on Red soil reached to equilibrium after 130mins, with removal efficiency of (86%), 1400mg as optimum dosages. Higher adsorption of Nitrate was observed at higher pH, obtained at pH 6.0, the rate of adsorption of Nitrate obeys first order rate equation. The obtained results of the batch experiments are best fit to Langmuir and Freundlich adsorption isotherms. From the experimental analysis it is concluded that Red soil shows good removal efficiency and hence can be used as adsorbents

Keywords: N-Adsorption, characteristics, Batch Experiments, Freundlich Isotherm, Langmuir Isotherm.

DOI: https://doi.org/10.15623/ijret.2013.0213062