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The microbial respiration quotient as indicator for bioremediation processes

: Hund, K.; Schenk, B.


Chemosphere 28 (1994), Nr.3, S.477-490 : Abb.,Tab.,Lit.
ISSN: 0045-6535
ISSN: 0366-7111
Fraunhofer IUCT ( IME) ()
bioremediation; Boden; microbial respiration; mikrobielle Atmung; polyaromatic hydrocarbon; polyaromatischer Kohlenwasserstoff; Sanierung; soil

The respiration quotient (QsubR) calculated from the actual (RsubA) and potential respiration rate (RsubP) after addition of glucose (QsubR = RsubA/RsubP) was compared with the PAH concentration of a contaminated site during bioremediation. A correlation coefficient of 0.997 was obtained. Comparison with respiration quotients of several contaminated and uncontaminated sites gives evidence that the quotient is a suitable indicator for easily biodegradable carbon sources in the soil and presents an adequate quick and easily determinable indicator for the efficiency of bioremediation processes.