Removal of Phenol from a Brine Aquifer: 2 Years of Operation

by David R. Hale, Detox, Dayton, OH, USA,
Evan K. Nyer, Detox, Dayton, OH, USA,

Document Type: Proceeding Paper

Part of: Environmental Engineering


The article describes a pilot plant project to biologically treat groundwater polluted with phenols. The treatment scheme was based on laboratory tests, technical and economic analysis. The final system included the following: a first stage activated sludge system; a second stage DETOX H-series biological reactor; a dual media filter; and a carbon adsorption column. This system was economical and could easily be changed to reflect the changes in the influent concentration. The full scale plant was installed based on the pilot plant data. The full scale plant has been run for the past two years. During that time the influent TOC concentration has decreased as predicted by the life-cycle design. The full scale plant has consistently removed 75% to 85% of the influent TOC and 99% of the phenol with the varible influent conditions. A program is being run to develop new bacteria that can degrade more of the organics left in the water.

Subject Headings: Phenol | Biological processes | Groundwater pollution | Water treatment | Water pollution | Salt water | Water resources | Influents

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