The removal of total dissolved solids (TDS) in an electroplating industry effluent using Albizia lebbeck pod powderwas studied in this invention. The effect of adsorbent dosage, mixing speed, initial concentration and contact time for removing total dissolved solids in an electroplating industry effluent have been evaluated. The results of the present study indicated that the máximum adsorption capacity of Albizia lebbeck pod powder for removing total dissolved solids in an electroplating industry effluent was found to be 86.4 %and was obtained at an optimum dosage of 100 mg/1, mixing speed of 300 rpm, dilution ratio of 3 (l/4thof its initial concentration) and contact time of 25 min. The experimental data were fítted to Langmuir and Freundlich isotherms. Based on the regression coefficient, the Freundlich isotherm model was fítted well to the experimental data of electroplating industry effluent than Langmuirisotherm model. The experimental data were also fítted to pseudo first-order, pseudo second-order, Elovich and intraparticle diffusion kinetic models. Based on regression coefficient, the experimental data found fítted well with pseudo secqnd-order kinetic model than that of other models.Thus, experimental and model studies concluded that, Albizia lebbeck pod powder is effectively used as adsorbent for removing TDS in an electroplating industry effluent.The invention also suggested that Albizia lebbeck pod powder can be effectively used to remove all physico-chemical parameters, biological parameters and heavy metáis from not only from electroplating industry wastewater but also from any type ofcontaminated water, wastewater and soil environment.
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