Covanta has helped make American Airlines' Tulsa (OK) Wheel & Brake Center a "zero-landfill" operation, handling about 800 tons of the company's wastewater per year. The American Airlines' Center recovers rubber from over one million tons of airplane tire rubber a year, via a cleaning process that generates wastewater. The wastewater is sent to Covanta's Energy-from-Waste facility, and put through the Liquid Direct Injection process, pumping wastewater directly into combustion chambers, thus avoiding landfills and potential leachate impacts. Liquid waste is combusted at approximately 2000 degrees F, generating steam that drives a turbine generator to create electricity which is exported for use at a neighboring refinery.
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