The present work aims to study the adsorption, determining the ability of phosphate to remove cationic dyes, MB （methylene blue） and CV （crystal violet） and an anionic dye, the MO （methyl orange）. To explain the...The present work aims to study the adsorption, determining the ability of phosphate to remove cationic dyes, MB （methylene blue） and CV （crystal violet） and an anionic dye, the MO （methyl orange）. To explain the important reduction of pollution parameters obtained from its use as a filter bed. Natural phosphate is contacted with an aqueous solution having a concentration of 20 mg/L for 90, 45 and 20 min respectively for the MB, CV and MO. Experimental results show that the phosphate totally eliminates the CV and the WB. While, the adsorption of MO is very low. The Langmuir isotherm applies to MB and MO while the adsorption of CV uses the Freundlich isotherm.展开更多
文摘The present work aims to study the adsorption, determining the ability of phosphate to remove cationic dyes, MB （methylene blue） and CV （crystal violet） and an anionic dye, the MO （methyl orange）. To explain the important reduction of pollution parameters obtained from its use as a filter bed. Natural phosphate is contacted with an aqueous solution having a concentration of 20 mg/L for 90, 45 and 20 min respectively for the MB, CV and MO. Experimental results show that the phosphate totally eliminates the CV and the WB. While, the adsorption of MO is very low. The Langmuir isotherm applies to MB and MO while the adsorption of CV uses the Freundlich isotherm.
