Factors limiting success of inoculation to enhance biodegradation of low concentrations of organic chemicals

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00177a005· OSTI ID:6156955

Zaidi, B R; Murakami, Y; Alexander, M

Corynebacterium sp. added to lake water rapidly mineralized 100 ..mu..g and 1.0 mg of p-nitrophenol (PNP)/L but acted very slowly on the substrate present at 26 ..mu..g/L. The rate and extent of mineralization of the lowest PNP concentration in Beebe Lake water varied according to the time the sample was taken and were directly related to rainfall, and presumably runoff, in the watershed. The addition of high concentrations of inorganic P or N to water samples collected after a drought period, during which mineralization by the bacterium was slow, enhanced PNP decomposition. Mineralization in Cayuga Lake water was increased slightly by 10 mg of K/sub 2/HPO/sub 4//L, but the enhancement was marked by 100 mg/L. The stimulation was a response to P and K. Glucose stimulated PNP mineralization in samples from Beebe and Cayuga Lakes, and K/sub 2/HOP/sub 4/ further increased the rate and extent of the transformation. The addition of either of two eucaryotic inhibitors increased the rate of Corynebacterium sp. growth in lake water amended with 26 ..mu..g of PNP/L but decreased the rate of mineralization.

• Research Organization: Cornell Univ., Ithaca, NY (USA)
• OSTI ID: 6156955
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 22:12; ISSN ESTHA
• Country of Publication: United States
• Language: English

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AROMATICS
BACTERIA
BIODEGRADATION
CHEMICAL REACTIONS
DECOMPOSITION
ECOLOGICAL CONCENTRATION
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HYDROXY COMPOUNDS
LAKES
MICROORGANISMS
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ORGANIC NITROGEN COMPOUNDS
PHENOLS
POLLUTION
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WATER POLLUTION