journal6 ›› 2005, Vol. 26 ›› Issue (1): 40-44.

• Doctoral Forum • Previous Articles     Next Articles

Culture Condition and Detoxification Characteristic of Microorganisms in High-Chromium(Ⅵ) Pollutant


  1. (College of Metallurgical Science and Engineering,Central South University,Changsha 410083,China)
  • Online:2005-01-15 Published:2012-09-22
  • About author:HE De-wen (1968-),male,was born in Yongzhou city of Hunan,the associate professor of post-doctor in Central South University,ph.D.,majoring in solid waste pollution control and reutilization.
  • Supported by:

    Supported by the Excellent Young Teachers Program of Minster of Education,China(2001-39)

Abstract: Biodegradation of environmental pollutants has the advantages of high effect and low cost,but high concentration chromium(Ⅵ) can restrain microorganism.The detoxification effect of microbe is discussed and the constitutes of culture medium are optimized to fit for microorganism detoxification in high-chromium pollutants.The exterior environment of microorganism is provided between anaerobic and aerobic condition,which takes advantage over industry application.The logarithm growth curve of microbe is determined and its growth period is two days,which provides the theoretical base of quick detoxification.Finally consolidation detoxification of microbe is studied and results show that the microbe can effectively remove low concentration  chromium(Ⅵ) (below 200 mg/L) and reduce high concentration from 600 mg/L to 82 mg/L over five days.

Key words: chromium(Ⅵ);microorganism;detoxification, culture

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