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Patterns of toxicity behavior in different types of microbial culture

✍ Scribed by Kuo-Ching Lin; Chung-Yuan Chen

Publisher: Springer Netherlands
Year: 1996
Tongue: English
Weight: 354 KB
Volume: 18
Category: Article
ISSN: 0141-5492
DOI: 10.1007/bf00129963

No coin nor oath required. For personal study only.

✦ Synopsis

Escherichia coli and activated sludge. In the E coli. culture, effective concentration at 50% inhibition varies from 0.745 mg/1 to 11.56 mg/1 (copper) and from 1.963 mg/l to 8.163 mg/1 (sodium pentachlorophenate) when COD concentrations change from 30 mg/1 to 1500 mg/1, respectively. For the activated sludge, however, EC50 remains stable, indicating toxicity is independent of nutrient status. This phenomenon is mainly related to the species composition which determines the correlation coefficient. Results in this study indicate that the influence of the type of microbial cultures is a crucial factor in determining microbial growth dynamics.

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