_1582627913 1582627913 Hamid Shirkhanloo sahar.zi67@gmail.com Hamid Shirkhanloo Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 12 25 2019 2 04 10.24200/amecj.v2.i04 http://journal.amecj.com/index.php/AMECJ-01/issue/view/10 Beniah Obinna Isiuku Francis Chizoruo Ibe The biosorption of metanil yellow on hen egg membrane from aqueous solution in a batch process was investigated at 29oC with a view to determine the potential of the membrane in removing metanil yellow from aqueous solution.  The effects of contact time, initial biosorbate concentration, biosorbent dosage and initial biosorbate pH were determined. Various isotherm models were used to analyze experimental data. The highest experimental equilibrium biosorption capacity obtained was 129.88 mg/g. The optimum pH was 3. Adsorption capacity increased with increase in initial solution concentration but decreased with increase in time. The isotherm models applied were good fits based on correlation coefficients. Flory-Huggins isotherm was the best fit (R2 0.986). The biosorption was endothermic, good, physisorptive and spontaneous. This work shows that hen egg membrane is a potential biosorbent for the removal of metanil yellow from aqueous solution. 12 25 2019 15 26 10.24200/amecj.v2.i04.78 http://journal.amecj.com/index.php/AMECJ-01/article/view/78 http://journal.amecj.com/index.php/AMECJ-01/article/download/78/149 http://journal.amecj.com/index.php/AMECJ-01/article/download/78/149 http://journal.amecj.com/index.php/AMECJ-01/article/download/78/150