La. Admin. Code tit. 33 § V-1703
Air Stripping Operation- a desorption operation employed to transfer one or more volatile components from a liquid mixture into a gas (air) either with or without the application of heat to the liquid. Packed towers, spray towers, and bubble-cap, sieve, or valve-type plate towers are among the process configurations used for contacting the air and a liquid.
Average Volatile Organic Concentration or Average VO Concentration- the mass-weighted average volatile organic concentration of a hazardous waste as determined in accordance with the requirements of LAC 33:V.4727.
Bottoms Receiver- a container or tank used to receive and collect the heavier bottoms fractions of the distillation feedstream that remain in the liquid phase.
Closed-Vent System- a system that is not open to the atmosphere and that is composed of piping, connections, and, if necessary, flow-inducing devices that transport gas or vapor from a piece or pieces of equipment to a control device.
Closure Device- a cap, hatch, lid, plug, seal, valve, or other type of fitting that blocks an opening in a cover such that when the device is secured in the closed position it prevents or reduces air pollutant emissions to the atmosphere. Closure devices include devices that are detachable from the cover (e.g., a sampling port cap), manually operated (e.g., a hinged access lid or hatch), or automatically operated (e.g., a spring-loaded pressure relief valve).
Condenser- a heat-transfer device that reduces a thermodynamic fluid from its vapor phase to its liquid phase.
Connector- flanged, screwed, welded, or other joined fittings used to connect two pipelines or a pipeline and a piece of equipment. For the purposes of reporting and recordkeeping, connector means flanged fittings that are not covered by insulation or other materials that prevent location of the fittings.
Continuous Recorder- a data-recording device recording instantaneous data values at least every 15 minutes, or more frequently if reasonably available technology exists which will achieve increased recording frequency.
Continuous Seal- a seal that forms a continuous closure that completely covers the space between the edge of the floating roof and the wall of a tank. A continuous seal may be a vapor-mounted seal, liquid-mounted seal, or metallic shoe seal. A continuous seal may be constructed of fastened segments so as to form a continuous seal.
Control Device- an enclosed combustion device, vapor recovery system, or flare. Any device the primary function of which is the recovery or capture of solvents or other organics for use, reuse, or sale (e.g., a primary condenser on a solvent recovery unit) is not a control device.
Control Device Shutdown- the cessation of operation of a control device for any purpose.
Cover- a device that provides a continuous barrier over the hazardous waste managed in a unit to prevent or reduce air pollutant emissions to the atmosphere. A cover may have openings (such as access hatches, sampling ports, gauge wells) that are necessary for operation, inspection, maintenance, and repair of the unit on which the cover is used. A cover may be a separate piece of equipment which can be detached and removed from the unit or a cover may be formed by structural features permanently integrated into the design of the unit.
Distillate Receiver- a container or tank used to receive and collect liquid material (condensed) from the overhead condenser of a distillation unit and from which the condensed liquid is pumped to larger storage tanks or other process units.
Distillation Operation- an operation, either batch or continuous, separating one or more feedstream(s) into two or more exit streams, each exit stream having component concentrations different from those in the feedstream(s). The separation is achieved by the redistribution of the components between the liquid and vapor phase as they approach equilibrium within the distillation unit.
Double Block and Bleed System- two block valves connected in series with a bleed valve or line that can vent the line between the two block valves.
Enclosure- a structure that surrounds a tank or container, captures organic vapors emitted from the tank or container, and vents the captured vapors through a closed-vent system to a control device.
Equipment- each valve, pump, compressor, pressure relief device, sampling connection system, open-ended valve or line, flange, or other connector and any control devices or systems required by this Chapter.
External Floating Roof- a pontoon-type or double-deck type cover that rests on the surface of the material managed in a tank with no fixed roof.
First Attempt at Repair- to take rapid action for the purpose of stopping or reducing leakage of organic material to the atmosphere using best practices.
Fixed Roof- a cover that is mounted on a unit in a stationary position and does not move with fluctuations in the level of the material managed in the unit.
Flame Zone- the portion of the combustion chamber in a boiler occupied by the flame envelope.
Floating Membrane Cover- a cover consisting of a synthetic flexible membrane material that rests upon and is supported by the hazardous waste being managed in a surface impoundment.
Floating Roof- a cover consisting of a double deck, pontoon single deck, or internal floating cover which rests upon and is supported by the material being contained, and is equipped with a continuous seal.
Flow Indicator- a device that indicates whether gas flow is present in a vent stream.
Fractionation Operation- a distillation operation or method used to separate a mixture of several volatile components of different boiling points in successive stages, each stage removing from the mixture some proportion of one of the components.
Hard-Piping- pipe or tubing that is manufactured and properly installed in accordance with relevant standards and good engineering practices.
Hazardous Waste Management Unit Shutdown- a work practice or operational procedure that stops operation of a hazardous waste management unit or part of a hazardous waste management unit. An unscheduled work practice or operational procedure that stops operation of a hazardous waste management unit or part of a hazardous waste management unit for less than 24 hours or a scheduled, routine work practice such as cessation of operation on a holiday or weekend is not a hazardous waste management unit shu tdown. The use of spare equipment and technically feasible bypassing of equipment without stopping operation are not hazardous waste management unit shutdowns.
Hot Well- a container for collecting condensate as in a steam condenser serving a vacuum-jet or steam-jet ejector.
In Gas/Vapor Service- a piece of equipment that contains or contacts a hazardous waste stream that is in the gaseous state at operating conditions.
In Heavy Liquid Service- a piece of equipment that is not in gas/vapor service or in light liquid service.
In Light Liquid Service-a piece of equipment that contains or contacts a waste stream where the vapor pressure of one or more of the organic components in the stream is greater than 0.3 kilopascals (kPa) at 20°C, the total concentration of the pure organic components having a vapor pressure greater than 0.3 kPa at 20°C is equal to or greater than 20 percent by weight, and the fluid is a liquid at operating conditions.
In Light Material Service-the container is used to manage a material for which both of the following conditions apply: the vapor pressure of one or more of the organic constituents in the material is greater than 0.3 kilopascals (kPa) at 20°C; and the total concentration of the pure organic constituents having a vapor pressure greater than 0.3 kPa at 20°C is equal to or greater than 20 percent by weight.
In Situ Sampling Systems- nonextractive samplers or in-line samplers.
In Vacuum Service- equipment operating at an internal pressure that is at least 5 kPa below ambient pressure.
Internal Floating Roof- a cover that rests or floats on the material surface (but not necessarily in complete contact with it) inside a tank that has a fixed roof.
Liquid-Mounted Seal- a foam or liquid-filled primary seal mounted in contact with the hazardous waste between the tank wall and the floating roof continuously around the circumference of the tank.
Malfunction- any sudden, infrequent, and not reasonably preventable failure of air pollution control equipment, process equipment, or a process to operate in a normal or usual manner. Failures that are caused in part by poor maintenance or careless operation are not malfunctions.
Maximum Organic Vapor Pressure- the sum of the individual organic constituent partial pressures exerted by the material contained in a tank at the maximum vapor pressure-causing conditions (e.g., temperature, agitation, pH effects of combining wastes, etc.) reasonably expected to occur in the tank. For the purpose of this Chapter, maximum organic vapor pressure is determined using the procedures specified in LAC 33:V.4727.
Metallic Shoe Seal- a continuous seal that is constructed of metal sheets which are held vertically against the wall of the tank by springs, weighted levers, or other mechanisms and is connected to the floating roof by braces or other means. A flexible coated fabric (envelope) spans the annular space between the metal sheet and the floating roof.
No Detectable Organic Emissions- no escape of organics to the atmosphere as determined using the procedure specified in LAC 33:V.4727.
Open-Ended Valve or Line- any valve, except pressure relief valves, having one side of the valve seat in contact with hazardous waste and one side open to the atmosphere, either directly or through open piping.
Point of Waste Origination- as follows:
a. when the facility owner or operator is the generator of the hazardous waste, the point of waste origination means the point where a solid waste produced by a system, process, or waste management unit is determined to be a hazardous waste as defined in LAC 33:V.109; or
[NOTE: In this case, this term is being used in a manner similar to the use of the term point of generation in air standards established for waste management operations under authority of the Clean Air Act in 40 CFR Parts 60, 61, and 63].
b. when the facility owner and operator are not the generator of the hazardous waste, point of waste origination means the point where the owner or operator accepts delivery or takes possession of the hazardous waste.
Point of Waste Treatment-the point where a hazardous waste to be treated in accordance with LAC 33:V.4725 exits the treatment process. Any waste determination shall be made before the waste is conveyed, handled, or otherwise managed in a manner that allows the waste to volatilize to the atmosphere.
Pressure Release-the emission of materials resulting from the system pressure being greater than the set pressure of the pressure relief device.
Process Heater-a device that transfers heat liberated by burning fuel to fluids contained in tubes, including all fluids except water that are heated to produce steam.
Process Vent-any open-ended pipe or stack that is vented to the atmosphere either directly, through a vacuum-producing system, or through a tank (e.g., distillate receiver, condenser, bottoms receiver, surge control tank, separator tank, or hot well) associated with hazardous waste distillation, fractionation, thin-film evaporation, solvent extraction, or air or steam stripping operations.
Repaired-equipment is adjusted, or otherwise altered, to eliminate a leak.
Safety Device-a closure device, such as a pressure relief valve, frangible disc, fusible plug, or any other type of device, which functions exclusively to prevent physical damage or permanent deformation to a unit or its air emission control equipment by venting gases or vapors directly to the atmosphere during unsafe conditions resulting from an unplanned, accidental, or emergency event. For the purpose of this Chapter, a safety device is not used for routine venting of gases or vapors from the vapor headspace underneath a cover such as during filling of the unit or to adjust the pressure in this vapor headspace in response to normal daily diurnal ambient temperature fluctuations. A safety device is designed to remain in a closed position during normal operations and open only when the internal pressure, or another relevant parameter, exceeds the device threshold setting applicable to the air emission control equipment as determined by the owner or operator based on manufacturer recommendations, applicable regulations, fire protection and prevention codes, standard engineering codes and practices, or other requirements for the safe handling of flammable, ignitable, explosive, reactive, or hazardous materials.
Sampling Connection System-an assembly of equipment within a process or waste management unit used during periods of representative operation to take samples of the process or waste fluid. Equipment used to take non-routine grab samples is not considered a sampling connection system.
Sensor-a device that measures a physical quantity or the change in a physical quantity such as temperature, pressure, flow rate, pH, or liquid level.
Separator Tank-a device used for separation of two immiscible liquids.
Single-Seal System-a floating roof having one continuous seal. This seal may be vapor-mounted, liquid-mounted, or a metallic shoe seal.
Solvent Extraction Operation-an operation or method of separation in which a solid or solution is contacted with a liquid solvent (the two being mutually insoluble) to preferentially dissolve and transfer one or more components into the solvent.
Start-Up-the setting in operation of a hazardous waste management unit or control device for any purpose.
Steam Stripping Operation-a distillation operation in which vaporization of the volatile constituents of a liquid mixture takes place by the introduction of steam directly into the charge.
Surge Control Tank-a large-sized pipe or storage reservoir sufficient to contain the surging liquid discharge of the process tank to which it is connected.
Thin-Film Evaporation Operation-a distillation operation that employs a heating surface consisting of a large-diameter tube that may be either straight or tapered, horizontal or vertical. Liquid is spread on the tube wall by a rotating assembly of blades that maintain a close clearance from the wall or actually ride on the film of liquid on the wall.
Vapor Incinerator-any enclosed combustion device that is used for destroying organic compound vapors and does not extract energy in the form of steam or process heat.
Vapor-Mounted Seal-a continuous seal that is mounted such that there is a vapor space between the hazardous waste in the unit and the bottom of the seal.
Vented- discharged through an opening, typically an open-ended pipe or stack, allowing the passage of a stream of liquids, gases, or fumes into the atmosphere. The passage of liquids, gases, or fumes is caused by mechanical means such as compressors or vacuum-producing systems or by process-related means such as evaporation produced by heating and not caused by tank loading and unloading (working losses) or by natural means such as diurnal temperature changes.
Volatile Organic Concentration or VO Concentration-the fraction by weight of the volatile organic compounds contained in a hazardous waste expressed in terms of parts per million (ppmw) as determined by direct measurement or by knowledge of the waste in accordance with the requirements of LAC 33:V.4727. For the purpose of determining the VO concentration of a hazardous waste, organic compounds with a Henry's law constant value of at least 0.1 mole-fraction-in-the-gas-phase/mole-fraction-in-the-liquid-phase (0.1 Y/X) (which can also be expressed as 1.8x10-6 atmospheres/gram-mole/m3) at 25°C must be included. LAC 33:V.1799.Appendix, Table 1 presents a list of compounds known to have a Henry's law constant value less than the cutoff level.
Waste Determination-performing all applicable procedures in accordance with the requirements of LAC 33:V.4727 to determine whether a hazardous waste meets standards specified in this Chapter. Examples of a waste determination include performing the procedures in accordance with the requirements of LAC 33:V.4727 to determine the average VO concentration of a hazardous waste at the point of waste origination; the average VO concentration of a hazardous waste at the point of waste treatment and comparing the results to the exit concentration limit specified for the process used to treat the hazardous waste; the organic reduction efficiency and the organic biodegradation efficiency for a biological process used to treat a hazardous waste and comparing the results to the applicable standards; or the maximum volatile organic vapor pressure for a hazardous waste in a tank and comparing the results to the applicable standards.
Waste Stabilization Process-any physical or chemical process used to either reduce the mobility of hazardous constituents in a hazardous waste or eliminate free liquids as determined by Test Method 9095B (Paint Filter Liquids Test) in Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, EPA Publication SW-846 as incorporated by reference in LAC 33:V.110. A waste stabilization process includes mixing the hazardous waste with binders or other materials and curing the resulting hazardous waste and binder mixture. Other synonymous terms used to refer to this process are waste fixation and waste solidification. This does not include the adding of absorbent materials to the surface of a waste, without mixing, agitation, or subsequent curing, to absorb free liquid.
La. Admin. Code tit. 33, § V-1703