Biochemical degradation treats produced water

In eastern Colombia, a root-zone filter removes contaminants from produced water (Fig. 1). In Colombia, Kelt Oil Co. employs a lined, reed-based, root-zone filtering system to remove contaminants from water produced with crude oil. The roots of the reeds absorb the contaminants. The treated water is then used for agriculture. Kelt has operated the system (Fig. 1 - above) for over 1 year near Trinidad, in the Casanare district of eastern Colombia. The Colombian company Tecnoskandia constructed the facility with technical assistance from the biotechnology research and development firm TransForm ApS-Danish Rootzone, Copenhagen. TransForm describes the Casanare region as a prairie-l...

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