The company, which will operate facility under a 10-year agreement, has also started a number of capital projects to improve operations of the facility.
Covanta president and chief executive officer Anthony Orlando said: "We are extremely pleased to have been chosen by Pinellas County to be the new operator of the Pinellas County Resource Recovery Facility.
"We have a strong track record of successfully integrating and restoring facilities and we look forward to welcoming our new client and employees into the Covanta family."
The Pinellas County Resource Recovery Facility has been designed to process approximately 3,150 tons of solid waste per day into enough clean renewable energy to power approximately 40,000 homes.
The facility also recovers approximately 26,000 tons of metal annually for recycling.
