RESUMO
Technologically promising microbe association, consisting of aerobic and anaerobic sporulating bacteria has been isolated. The association synthesizes molecular hydrogen during fermentation of potato and starch. The association was isolated from soil, pasteurized on the boiling water bath. The association destroys potato during 5-7 days with a decrease of mass up to 17.4 times and synthesizes gas consisting of 60% of H2.
Assuntos
Bactérias Aeróbias/crescimento & desenvolvimento , Bactérias Anaeróbias/crescimento & desenvolvimento , Hidrogênio/isolamento & purificação , Bactérias Aeróbias/metabolismo , Bactérias Aeróbias/fisiologia , Bactérias Anaeróbias/metabolismo , Bactérias Anaeróbias/fisiologia , Biocombustíveis , Fermentação , Hidrogênio/metabolismo , Solanum tuberosum/química , Esporos BacterianosRESUMO
A possibility of efficient extraction of 238U, 239Pu and 241Am by microorganisms from solutions with activity 520-3200 Bq/l has been shown on the example of microbial biosorbent (MBS). MBS presents water-resistant granules consisting of living microorganisms and nutrient substances. The ratio MBS:solution being equal to 1:100 and 1:20, microorganisms extracts 98.9 and 99.8% of 238U; 99.1 and 99.8% of 239Pu, 241Am, respectively. The worked out MBC granules may be utilized by burning with the 4-8 decrease of the volume. It is foreseen to use MBS in industrial processes of treatment of liquid radioactive waste (LRW) for uranium and transuranium elements.