In need of a recovery plan for their wastewater treatment system, an industrial oil refinery in New Mexico used BioLynceus® to restart their biological treatment after a toxic hit. The refinery was processing 50,000 barrels of crude oil a day.
Toxicity was experienced in the system after foaming fire retardant was unexpectedly released at the refinery. The wastewater discharged to the lagoons following the event was contaminated with chemicals. The compounds in the flame retardant reacted with the dissolved oxygen (DO) in the treatment ponds which drastically decreased the oxygen availability for wastewater microbiology. Because the DO levels were very low, the oxygen reliant biomass in the system was killed off.