Ill. Admin. Code tit. 35, § 721.987 - Standards: Closed-Vent Systems and Control Devices
a) This Section applies to each closed-vent
system and control device installed and operated by the remanufacturer or other
person who stores or treats the hazardous secondary material to control air
emissions in accordance with standards of this Subpart CC.
b) The closed-vent system must meet the
following requirements:
1) The closed-vent
system must route the gases, vapors, and fumes emitted from the hazardous
secondary material in the hazardous secondary material management unit to a
control device that meets the requirements specified in subsection
(c).
2) The closed-vent system must
be designed and operated in accordance with the requirements specified in
Section
721.933(k).
3) If the closed-vent system includes bypass
devices that could be used to divert the gas or vapor stream to the atmosphere
before entering the control device, each bypass device must be equipped with
either a flow indicator as specified in subsection (b)(3)(A) or a seal or
locking device as specified in subsection (b)(3)(B). For the purpose of
complying with this subsection (b), low leg drains, high point bleeds, analyzer
vents, open-ended valves or lines, spring loaded pressure relief valves, and
other fittings used for safety purposes are not considered to be bypass
devices.
A) If a flow indicator is used to
comply with subsection (b)(3), the indicator must be installed at the inlet to
the bypass line used to divert gases and vapors from the closed-vent system to
the atmosphere at a point upstream of the control device inlet. For this
subsection (b), a flow indicator means a device which indicates the presence of
either gas or vapor flow in the bypass line.
B) If a seal or locking device is used to
comply with subsection (b)(3), the device must be placed on the mechanism by
which the bypass device position is controlled (e.g., valve handle, damper
lever, etc.) when the bypass device is in the closed position such that the
bypass device cannot be opened without breaking the seal or removing the lock.
Examples of such devices include, but are not limited to, a car-seal or a
lock-and-key configuration valve. The remanufacturer or other person that
stores or treats the hazardous secondary material must visually inspect the
seal or closure mechanism at least once every month to verify that the bypass
mechanism is maintained in the closed position.
4) The closed-vent system must be inspected
and monitored by the remanufacturer or other person that stores or treats the
hazardous secondary material in accordance with the procedure specified in
Section
721.933(l).
c) The control device must meet
the following requirements:
1) The control
device must be one of the following devices:
A) A control device designed and operated to
reduce the total organic content of the inlet vapor stream vented to the
control device by at least 95 percent by weight;
B) An enclosed combustion device designed and
operated in accordance with the requirements of Section
721.933(c);
or
C) A flare designed and operated
in accordance with the requirements of Section
721.933(d).
2) The remanufacturer or other
person that stores or treats the hazardous secondary material who elects to use
a closed-vent system and control device to comply with the requirements of this
Section must comply with the requirements specified in subsections (c)(2)(A)
through (c)(2)(F).
A) Periods of planned
routine maintenance of the control device, during which the control device does
not meet the specifications of subsection (c)(1)(A), (c)(1)(B), or (c)(1)(C),
as applicable, must not exceed 240 hours per year.
B) The specifications and requirements in
subsections (c)(1)(A) through (c)(1)(C) for control devices do not apply during
periods of planned routine maintenance.
C) The specifications and requirements in
subsections (c)(1)(A) through (c)(1)(C) for control devices do not apply during
a control device system malfunction.
D) The remanufacturer or other person that
stores or treats the hazardous secondary material must demonstrate compliance
with the requirements of subsection (c)(2)(A) (i.e., planned routine
maintenance of a control device, during which the control device does not meet
the specifications of subsection (c)(1)(A), (c)(1)(B), or (c)(1)(C), as
applicable, must not exceed 240 hours per year) by recording the information
specified in Section
721.989(e)(1)(E).
E) The remanufacturer or other person that
stores or treats the hazardous secondary material must correct control device
system malfunctions as soon as practicable after their occurrence in order to
minimize excess emissions of air pollutants.
F) The remanufacturer or other person that
stores or treats the hazardous secondary material must operate the closed-vent
system such that gases, vapors, or fumes are not actively vented to the control
device during periods of planned maintenance or control device system
malfunction (i.e., periods when the control device is not operating or not
operating normally) except in cases when it is necessary to vent the gases,
vapors, or fumes to avoid an unsafe condition or to implement malfunction
corrective actions or planned maintenance actions.
3) The remanufacturer or other person that
stores or treats the hazardous secondary material using a carbon adsorption
system to comply with subsection (c)(1) must operate and maintain the control
device in accordance with the following requirements:
A) Following the initial startup of the
control device, all activated carbon in the control device must be replaced
with fresh carbon on a regular basis in accordance with the requirements of
Section
721.933(g)
or (h).
B) All carbon that is hazardous waste and
that is removed from the control device must be managed in accordance with the
requirements of Section
721.933(n),
regardless of the average volatile organic concentration of the
carbon.
4) A
remanufacturer or other person that stores or treats the hazardous secondary
material using a control device other than a thermal vapor incinerator, flare,
boiler, process heater, condenser, or carbon adsorption system to comply with
subsection (c)(1) must operate and maintain the control device in accordance
with the requirements of Section
721.933(j).
5) The remanufacturer or other person that
stores or treats the hazardous secondary material must demonstrate that a
control device achieves the performance requirements of subsection (c)(1) as
follows:
A) A remanufacturer or other person
that stores or treats the hazardous secondary material must demonstrate the
performance of each control device, using either a performance test, as
specified in subsection (c)(5)(C), or a design analysis, as specified in
subsection (c)(5)(D), except for the following:
i) A flare;
ii) A boiler or process heater with a design
heat input capacity of 44 megawatts or greater; or
iii) A boiler or process heater into which
the vent stream is introduced with the primary fuel.
B) A remanufacturer or other person that
stores or treats the hazardous secondary material must demonstrate the
performance of each flare in accordance with the requirements specified in
Section
721.933(e).
C) For a performance test conducted to meet
the requirements of subsection (c)(5)(A), the remanufacturer or other person
that stores or treats the hazardous secondary material must use the test
methods and procedures specified in Section
721.934(c)(1) through
(c)(4).
D) For a design analysis conducted to meet
the requirements of subsection (c)(5)(A), the design analysis must meet the
requirements specified in Section
721.935(b)(4)(C).
E) The remanufacturer or other person that
stores or treats the hazardous secondary material must demonstrate that a
carbon adsorption system achieves the performance requirements of subsection
(c)(1) based on the total quantity of organics vented to the atmosphere from
all carbon adsorption system equipment that is used for organic adsorption,
organic desorption or carbon regeneration, organic recovery, and carbon
disposal.
6) If the
remanufacturer or other person that stores or treats the hazardous secondary
material and the Agency do not agree on a demonstration of control device
performance using a design analysis, then the disagreement must be resolved
using the results of a performance test performed by the remanufacturer or
other person that stores or treats the hazardous secondary material in
accordance with the requirements of subsection (c)(5)(C). The Agency may choose
to have an authorized representative observe the performance test. The Agency
must state any disagreement on a demonstration of control device performance
using a design analysis in writing to the remanufacturer or other person that
treats or stores hazardous secondary material.
7) The closed-vent system and control device
must be inspected and monitored by the remanufacture or other person that
stores or treats the hazardous secondary material in accordance with the
procedures specified in Section
721.933(f)(2)
and (l). The readings from each monitoring
device required by Section
721.933(f)(2)
must be inspected at least once each operating day to check control device
operation. Any necessary corrective measures must be immediately implemented to
ensure the control device is operated in compliance with the requirements of
this Section.
Notes
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