Abstract
The effect of antiseptic treatment and drying on the sorption capacity of xerotolerant fungi A. niger, A. ochraceus and A. versicolor isolated from mold lesions in cardboard archival boxes was studied. Exposure to a 2 % solution of benzalkonium chloride (BAC), leading to a rapid loss of mycelium viability, increased the sorption capacity of the fungal mycelium with respect to copper, zinc, and lead ions, and treatment with a 0.5 % biocide solution, which slowed down the growth of fungi without complete inhibition, somewhat reduced binding of heavy metals. A significant decrease in the sorption capacity was observed only after the moisture content of the sorbents was reduced to 12–15 %. In dried (after treatment with 0.5 % BAC) A. versicolor biomass, the sorption capacity in relation to copper, zinc and lead ions decreased compared to wet biomass (after treatment with 2.0 % BAC) by 17.4, 18.7 and 24.6 times respectively.
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