Biodegradation of tributyl phosphate, an organosphate triester, by aerobic granular biofilms

Y.V. Nancharaiah, G. Kiran Kumar Reddy, T.V. Krishna Mohan, V.P. Venugopalan
  • Journal of Hazardous Materials, February 2015, Elsevier
  • DOI: 10.1016/j.jhazmat.2014.09.065

Tributyl phosphate biodegradation by aerobic granular sludge

What is it about?

Tributyl phosphate (TBP) is used in various industries. TBP is commercially used in large volumes for reprocessing of spent nuclear fuel. TBP is a very stable compound in natural environments. Here, we developed a TBP degrading microbial community in the form of microbial granules. The microbial granules are millimeter sized spherical dense particles consisting of millions of bacteria. after the treatment, the microbial granules can be easily separated from the water by means of sedimentation.

Why is it important?

Tributyl phosphate (TBP) degrading microbial community was developed in the form of compact microbial granules in aerobic bubble-column reactors. Microbial granules are compact biofilm aggregates composed of microbial cells in EPS matrix. The microbial granules are stable during prolonged use and storage. This is for the first time such a microbial system was developed for biodegradation of TBP. The system is suitable for removing TBP from waste streams and contaminated sites.

Perspectives

Dr Yarlagadda Venkata Nancharaiah
BARC

It is the first report on biodegradation of tributyl phosphate by aerobic granular sludge. This paper presented details of biodegradation process for treatment of tributyl phosphate contaminated waters. The details of mechanism of degradation was also presented.

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http://dx.doi.org/10.1016/j.jhazmat.2014.09.065

The following have contributed to this page: Dr Yarlagadda Venkata Nancharaiah