The Dow Chemical Company

Gary M Klecka

Terry J Nestrick

Mark A LaPack

William F Martin

This invention relates to a self-regulated apparatus and method for extracting biodegradable and/or strippable constituents from a gaseous stream by the action of biomass which consumes or degrades such substances. Such self-regulation permits the monitoring and optimization of the bioactivity of the system and the overall degree of treatment of the gaseous stream.

Self-regulated biological scrubber and/or gas stripper for the treatment

Adding at least one biotransformation enhancing agent selected from the group consisting of propylene glycol, glycerol, glutamate, a mixture of proteose peptone, beef extract, yeast extract, malt extract, dextrose and ascorbic acid and, and mixtures thereof to halogenated hydrocarbon contaminated soil and/or water.

Method for stimulating anaerobic biotransformation of halogenated

This invention relates to a self-regulated apparatus and method for extracting biodegradable and/or strippable constituents from a fluid stream by the action of biomass which consumes or degrades such substances or by gas stripping. Such self-regulation permits the monitoring and optimization of the bioactivity of the system and the overall degree of treatment of the fluid stream.

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Midland, MI, United States of America

Gary M Klecka