You are here:
DESTRUCTION OF ASPERGILLUS VERSICOLOR, PENICILLIUM CRYSOGENUM, STACHYBOTRYS CHARTARUM, AND CLADOSPORIUM CLADOSPORIDES SPORES USING CHEMICAL OXIDATION TREATMENT PROCESS
Citation:
YAARI, G., G. TACHIEV, T. R. DEAN, D. BETANCOURT, AND S. LONG. DESTRUCTION OF ASPERGILLUS VERSICOLOR, PENICILLIUM CRYSOGENUM, STACHYBOTRYS CHARTARUM, AND CLADOSPORIUM CLADOSPORIDES SPORES USING CHEMICAL OXIDATION TREATMENT PROCESS. Remediation Journal. John Wiley & Sons, Ltd., Indianapolis, IN, 17(2):109-126, (2007).
Impact/Purpose:
To inform public
Description:
The survival of aqueous suspensions of Penicillium chrysogenum, Stachybotrys chartarum, Aspergillus versicolor, and Cladosporium cladosporioides spores was evaluated using various combinations of hydrogen peroxide and iron (II) as catalyst. Spores were suspended in water and treated with a range hydrogen peroxide concentrations. Iron had a strong catalytic effect, and when added to solutions with hydrogen peroxide concentration above 50,000 ppm and resulted in two to three orders of magnitude greater reduction compared to hydrogen peroxide alone. The effect of the iron catalyst was mostly kinetic; after 24 hours catalyzed and noncatalyzed hydrogen peroxide had similar effects. This study identified the initial reagent concentrations of hydrogen peroxide and FE(II) that can accomplish a 6-log reduction of viable mold spores within reaction times of 4 to 24 hours.