§ 240.101 Definitions.

As used in these guidelines:

(a) Air: Overfire air means air, under control as to quantity and direction, introduced above or beyond a fuel bed by induced or forced draft. “Underfire air” means any forced or induced air, under control as to quantity and direction, that is supplied from beneath and which passes through the solid wastes fuel bed.

(b) Bottom ash means the solid material that remains on a hearth or falls off the grate after thermal processing is complete.

(c) Combustibles means materials that can be ignited at a specific temperature in the presence of air to release heat energy.

(d) Design capacity means the weight of solid waste of a specified gross calorific value that a thermal processing facility is designed to process in 24 hours of continuous operation; usually expressed in tons per day.

(e) Discharge means water-borne pollutants released to a receiving stream directly or indirectly or to a sewerage system.

(f) Emission means gas-borne pollutants released to the atmosphere.

(g) Facility means all thermal processing equipment, buildings, and grounds at a specific site.

(h) Fly ash means suspended particles, charred paper, dust, soot, and other partially oxidized matter carried in the products of combustion.