화학공학소재연구정보센터
Erdol & Kohle Erdgas Petrochemie, Vol.48, No.2, 79-86, 1995
POSSIBILITIES AND LIMITATIONS OF BIOLOGICAL SOIL DECONTAMINATION
A systematic procedure for the biological decontamination of soils polluted by different organic substances is shown. In the first step biological activities and contents of soilborne microbes capable to degrade the respective contamination are determined, isolated and augmented. Subsequently the soil is treated in laboratory studies with these microorganisms in different ways to get best results in a short time. These results obtained by pilot studies are transfered to larget amounts of the soil to be purified by microbes. Up to 1500 tons of contaminated soil have been decontaminated within 6-9 months. The contaminants consist of phenoles, engine fuels and mineral oils; in one case the cometabolism of PAH and PCB (with a reduction of about 50%) has been observed.