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Tuesday, April 11, 2006

comment on EPA Press Release Biogenesis Soil washing Technology

Environmental Protection Agency - EPA Press Release: Technology Turns Contaminated Sediment into Useful Product; Environmental Headache Can Become Valuable Product

Through the Bioremediation Discussion Group - Bioremediationgroup.org

Biogenesis Soil washing process is far from being new. I knew about it over 10 years.

No doubt this is a useful technology, however, it has its limitations due to basic physico-chemical principles. It is especially suitable for removal of petroleum related contaminants if the soil does not contain a to high fraction of fines.

For higher PAH contamination it can only reduce the contaminant load, however, it will never be able to meet more stringent remediation targets.

'The BioGenesis Sediment Washing Technology strips contaminants, such as PCBs, dioxins' - this is surely far from being realistic.

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