Abstract

The objective of this study is to investigate the effects of the degree of α ionization on the rate uptake of organic pollutant (toluene) by poly (4-vinylpyridinium)-maghnite. Two-step experiment was carried out where the organophilic maghnite adsorbent was prepared in the first step and toluene was adsorbed on maghnite in the second step. This material organophilic maghnite was prepared by exchanging the organic polycation as poly (4-vinylpyridinium) chloride (PVPS) for sodium (Na⁺) on the layer surface of clay. This process of wastewater treatment is of interest for the wastes stabilisation in which toluene contaminations occurs. Batch adsorption studies were conducted to evaluate the effects of initial toluene concentration. The results show that the two-step process is an efficient, simple and low cost technological way for the removal of organic pollutants from water.

Key words: Adsorption, organic pollutant, P4VP, maghnite, organoclay.