As used in rules
3745-205-30 to
3745-205-36 of the
Administrative Code, all terms not defined herein have the meaning as in
Chapters
3745-50 to
3745-57,
3745-65 to
3745-69,
3745-205,
3745-256, and
3745-266 of the Administrative
Code.
(A)
"Air stripping operation" is 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.
(B)
"Bottoms receiver" means a container or tank used to
receive and collect the heavier bottoms fractions of the distillation feed
stream that remain in the liquid phase.
(C)
(1)
"Closed-vent system" means 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.
(2)
"Condenser" means
a heat-transfer device that reduces a thermodynamic fluid from its vapor phase
to its liquid phase.
(3)
"Connector" means 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.
(4)
"Continuous
recorder" means a data-recording device recording an instantaneous data value
at least once every fifteen minutes.
(5)
"Control device"
means 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.
(6)
"Control device
shutdown" means the cessation of operation of a control device for any
purpose.
(D)
(1)
"Distillate
receiver" means 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.
(2)
"Distillation operation" means an operation, either
batch or continuous, separating one or more feed streams into two or more exit
streams, each exit stream having component concentrations different from those
in the feed stream. The separation is achieved by the redistribution of the
components between the liquid and vapor phase as the components approach
equilibrium within the distillation unit.
(3)
"Double block and
bleed system" means two block valves connected in series with a bleed valve or
line that can vent the line between the two block valves.
(E)
"Equipment" means each valve, pump, compressor, pressure
relief device, sampling connection system, open-ended valve or line, or flange
or other connector, and any control devices or systems required by rules
3745-205-30 to
3745-205-36 of the
Administrative Code.
(F)
(1)
"Flame zone"
means the portion of the combustion chamber in a boiler occupied by the flame
envelope.
(2)
"Flow indicator" means a device that indicates whether
gas flow is present in a vent stream.
(3)
"First attempt at
repair" means to take rapid action for the purpose of stopping or reducing
leakage of organic material to the atmosphere using best
practices.
(4)
"Fractionation operation" means 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.
(H)
(1)
"Hazardous waste management unit shutdown" means 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 twenty-four hours is not a hazardous waste management unit shutdown. The
use of spare equipment and technically feasible bypassing of equipment without
stopping operation are not hazardous waste management unit
shutdowns.
(2)
"Hot well" means a container for collecting condensate
as in a steam condenser serving a vacuum-jet or steam-jet
ejector.
(I)
(1)
"In gas or vapor
service" means that the piece of equipment contains or contacts a hazardous
waste stream that is in the gaseous state at operating
conditions.
(2)
"In heavy liquid service" means that the piece of
equipment is not in gas or vapor service or in light liquid
service.
(3)
"In light liquid service" means that the piece of
equipment 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 twenty
degrees Celsius, the total concentration of the pure organic components having
a vapor pressure greater than
0.3 kPa at twenty degrees
Celsius is equal to or greater than twenty per cent by weight, and the fluid is
a liquid at operating conditions.
(4)
"In situ sampling
systems" means non-extractive samplers or in-line samplers.
(5)
"In vacuum
service" means that equipment is operating at an internal pressure that is at
least five kPa below ambient pressure.
(M)
"Malfunction"
means any sudden failure of a control device or a hazardous waste management
unit or failure of a hazardous waste management unit to operate in a normal or
usual manner, so that organic emissions are increased.
(O)
"Open-ended valve
or line" means 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.
(P)
(1)
"Pressure release" means the emission of materials
resulting from the system pressure being greater than the set pressure of the
pressure relief device.
(2)
"Process heater" means 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.
(3)
"Process vent"
means 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.
(R)
"Repaired" means
that equipment is adjusted, or otherwise altered, to eliminate a
leak.
(S)
(1)
"Sampling
connection system" means 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.
(2)
"Sensor" means a
device that measures a physical quantity or the change in a physical quantity,
such as temperature, pressure, flow rate, pH, or liquid level.
(3)
"Separator tank"
means a device used for separation of two immiscible liquids.
(4)
"Solvent
extraction operation" means 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.
(5)
"Startup" means the setting in operation of a hazardous
waste management unit or control device for any purpose.
(6)
"Steam stripping
operation" means 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.
(7)
"Surge control tank" means a large-sized pipe or
storage reservoir sufficient to contain the surging liquid discharge of the
process tank to which it is connected.
(T)
"Thin-film
evaporation operation" means 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.
(V)
(1)
"Vapor incinerator" means any enclosed combustion
device that is used for destroying organic compounds and does not extract
energy in the form of steam or process heat.
(2)
"Vented" means
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.
[Comment: For dates of non-regulatory
government publications, publications of recognized organizations and
associations, federal rules, and federal statutory provisions referenced in
this rule, see rule
3745-50-11 of the Administrative
Code titled "Incorporated by reference."]
Notes
Ohio Admin. Code
3745-205-31
Effective:
6/12/2023
Five Year Review (FYR) Dates: Exempt
Promulgated Under:
119.03
Statutory
Authority: 3734.12
Rule
Amplifies: 3734.12