Comparative study of the toxic effect of different diphenol species on soil microbial activity

H. L. Chen, J. Yao, Y. X. Wang, F. Wang, Y. Zhou, L. Tian, A. Djak, T. Maskow, G. Zaray

Research output: Conference contribution

Abstract

Microcalorimetry has been used in a series of experiments to comparatively study the toxic effect caused by different diphenol species on microbial activity of Chinese fir soil. Activity of microorganisms on 1.20 g of soil sample was stimulated by 5.0 mg of glucose and 5.0 mg of ammonium sulfate held at 28°C and 35% moisture content. Power-time curves recorded by microcalorimetry demonstrate decreasing amounts of soil microbial activity following increased additions of diphenol. This decrease is likely due to an increase of toxic products formed from degraded diphenol species, adversely affecting the conditions for life in this ecosystem. Among these diphenol species, the toxicity of three diphenols in descending sequence is: hydroquinone, catechol and resorcinol.

Original languageEnglish
Title of host publicationWater-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
Pages1531-1534
Number of pages4
Publication statusPublished - dec. 1 2007
Event12th International Symposium on Water-Rock Interaction, WRI-12 - Kunming, China
Duration: júl. 31 2007aug. 4 2007

Publication series

NameWater-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
Volume2

Other

Other12th International Symposium on Water-Rock Interaction, WRI-12
CountryChina
CityKunming
Period7/31/078/4/07

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ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Water Science and Technology

Cite this

Chen, H. L., Yao, J., Wang, Y. X., Wang, F., Zhou, Y., Tian, L., Djak, A., Maskow, T., & Zaray, G. (2007). Comparative study of the toxic effect of different diphenol species on soil microbial activity. In Water-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12 (pp. 1531-1534). (Water-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12; Vol. 2).