Biodegradation of the chelator 2 , 6-pyridine dicarboxylic acid ( PDA ) used for soil metal extraction

In this research the biodegradability of 2,6-pyridine dicarboxylic acid (PDA) was evaluated. This compound has been used as a chelating agent for extraction of metal ions from contaminated soils. Initial experiments indicated that PDA was not biodegraded by unacclimated mixed cultures to any degree. However, acclimated mixed cultures degraded more than 80… CONTINUE READING