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> Various industries produce and discharge wastes containing different heavy metals into the environment. Apart from using living biomass, dead and dried biomasses have been introduced as a new field of biotreatment technology.<br> <strong>Method:</strong> The cadmium (Cd) (II) removal characteristics of live (growing), dead (autoclaved), and oven-dried biomasses of <em>Aspergillus versicolor</em> were examined as a function of initial pH, contact time, and initial Cd concentration.<br> <strong>Result:</strong> Maximum bioaccumulation of Cd for live biomass [11.63 (mg g^&minus;&sup1;)] occurred at an optimal pH of 4 and incubation time of 4 days. Themaximum biosorption of 27.56 (mg g^&minus;&sup1;) for dead biomass occurred at 1.5 h and at a pH of 4. The maximum biosorption [18.08 (mg g^&minus;&sup1;)] with dried biomass was reached at an equilibrium time of 3 h at a pH of 6.<br> <strong>Conclusion:</strong> The present study confirmed that heat treatment promoted the removal capacity of fungi. Cd removal was increased by decreasing the pH in live and dead-mode experiments. Inversely, Cd removal was increased with increasing pH for the dried biomass of <em>A. versicolor. </em>Varying responses to environmental conditions (pH and contact time) clearly proved the different removal mechanisms used by three biomasses of <em>A. versicolor</em>. Higher Cd concentration increased the removal ability of three types of biomasses. The results indicated that all biomasses of <em>A. versicolor </em>used in this study, particularly dead biomass, are a suitable biosorbent for the removal of Cd (II) ions from aqueous solution.</span></span><br> &nbsp;</p> Dead, Dried, Live, Fung, Bioremoval 87 98 http://jhehp.zums.ac.ir/browse.php?a_code=A-10-37-1&slc_lang=en&sid=1 Negin Soleimani sol.negin@yahoo.com 10031947532846009313 10031947532846009313 Yes Department of Environmental Health Engineering, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran. Mehran Mohammadian Fazli mhrnmoh@zums.ac.ir 10031947532846009314 10031947532846009314 No Department of Environmental Health Engineering, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran. Ali Ramazani ramazania@zums.ac.ir 10031947532846009315 10031947532846009315 No Department of Biotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran. Mohammad Reza Mehrasbi zmehr@zums.ac.ir 10031947532846009316 10031947532846009316 No Department of Environmental Health Engineering, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran.