Short Communications

Experientia

, Volume 42, Issue 9, pp 1061-1062

Biodegradation of nitrilotriacetic acid (NTA) in the absence of oxygen

  • T. EgliAffiliated withSwiss Federal Institute for Water Resources and Water Pollution Control, Swiss Federal Institutes of Technology
  • , H. -U. WeilenmannAffiliated withSwiss Federal Institute for Water Resources and Water Pollution Control, Swiss Federal Institutes of Technology

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Summary

A microbiol culture able to grow in the absence of oxygen with nitrilotriacetate (NTA) as the sole source of carbon and energy was enriched from river sediment. Growth was strictly dependent on the presence of nitrate and the results indicate that nitrate was exclusively used as the electron acceptor and was reduced to dinitrogen (N2). The stoichiometry of anaerobic NTA degradation by the enrichment culture was determined.

Key words

Nitrilotriacetate (NTA) biodegradation enrichment culture denitrification sewage treatment