en Environmental Health, Sciences, and Engineering Environmental Health, Sciences, and Engineering پژوهشي Original Article <p><span style="font-size:14px;"><span style="font-family: times new roman;"><strong>Background;</strong> Recently, there has been a great concern about the consumption of dyes because of their toxicity, mutagenicity, carcinogenicity, and persistence in the aquatic environment. Therefore, the aim of this study was to determine the feasibility of using Lemna minor for Acid Blue 292 (AB292) dye removal from aqueous solution and to determine the optimal conditions.<br> <strong>Methods; </strong>This experimental study was conducted in the batch systems to investigate the effects of parameters such as contact time, initial concentration of dye, pH and Lemna minor biomass dose. Isotherms and kinetic studies of dye adsorption were performed using equilibrium data.</span></span><br> <span style="font-size:14px;"><span style="font-family: times new roman;"><strong>Results;</strong> According to the results, a maximum removal efficiency of 98.5% was obtained at pH of 3 and the contact time of 90 min; initial dye concentration 10 mg/L and adsorbent dose 3g/L. The adsorption data was best fitted to the Langmuir isotherm and pseudo-second order kinetic model.</span></span><br> <span style="font-size:14px;"><span style="font-family: times new roman;"><strong>Conclusion; </strong>The results showed that Lemna minor could be used as a cost-effective adsorbent for removing AB292 dye from textile wastewater efficiently.</span></span></p> Lemna minor , Acid Blue 292 dye, Biosorption, Kinetics 9 19 http://jhehp.zums.ac.ir/browse.php?a_code=A-10-65-1&slc_lang=en&sid=1 Davoud Balarak dbalarak2@gmail.com 10031947532846009372 10031947532846009372 No Department of Environmental Health, Health Promotion Research Center, School of Public Health, Zahedan University of Medical Sciences, Zahedan, Iran. Yousef Mahdavi dbalarak2@gmail.com 10031947532846009373 10031947532846009373 No Department of Environmental Health, Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran. Ferdos Kord Mostafapour dbalarak2@gmail.com 10031947532846009374 10031947532846009374 No Department of Environmental Health, Health Promotion Research Center, School of Public Health, Zahedan University of Medical Sciences, Zahedan, Iran. Ali Joghatayi alijoghatayi69@gmail.com 10031947532846009375 10031947532846009375 Yes Student Research Committee, Qom University of Medical Sciences, Qom, Iran.