A facility that processes municipal solid waste through incineration or waste-to-energy conversion. In mass-burn facilities, municipal solid wastes are pre-sorted to remove non-combustible components and hazardous materials. After this pre-treatment, the waste is fed into an incinerator where it is supported on a grate or hearth. Air is then fed above or below the grate to start combustion. In addition to receiving and handling, and combustion and steam generation, the other major components of a mass burn facility include flue gas cleaning, power generation (optional), condenser cooling water, residue ash hauling, and landfilling.