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简介：TwostrainsofgreenmicroalgaeC.reinhardtiandC.pyrenoidosawereexaminedfortheirbiosorptionofMn2+,Fe2+,Co2+,Ni2+,Cu2+,Zn2+,andCd2+fromaqueousmulti-metalsolutions.Awiderangeofbiosorptioncapacitiescanbeobservedduetodifferentstrainsofmicroalgaeanddifferentspeciesoftracemetals.Thischaracteristicwasascribedtothedistinctcomponentsandstructuresofalgalcellwallsandthedifferentphysicochemicalpropertiesoftracemetals,suchasatomicweightandiondensity.C.pyrenoidosashowedhigheruptakecapacitiesthanC.reinhardtiandbothofthemhadapreferencefortheuptakeofcadmiumoverothersinthetracemetalsolution,suggestingtheycanbeagoodbiomaterialforbiosorptionofcadmium.Livemicroalgalcellsdisplayedamorecomplexsorptionprocessthandeadmicroalgalcellsbecauseofcellassimilation.