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Virginia Administrative Code (Last Updated: January 10, 2017) |
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Title 9. Environment |
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Agency 5. State Air Pollution Control Board |
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Chapter 40. Existing Stationary Sources |
Section 1400. Control technology guidelines
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A. Vacuum producing system. The control system should either vent noncondensable vapors to a firebox, incinerator or compress the vapors and add them to the refinery fuel gas. The associated hot wells should be covered and equipped with a vapor control system that incinerates the vapors.
B. Wastewater separators. The control system should consist of one of the following:
1. A solid cover with all openings sealed and totally enclosing the liquid contents of that compartment;
2. A floating pontoon or double-deck type cover, equipped with closure seals to enclose any space between the cover's edge and compartment wall; or
3. Any system of equal or greater control efficiency to the system in subsection B 1 or 2 of this section, provided such system is approved by the board.
C. Process unit turnaround. The units should be depressurized to a flare, fuel gas system or to some other combustion device before being opened for inspection or maintenance. Such units should be depressurized to five psi or below before venting to the atmosphere.
Historical Notes
Derived from VR120-04-1107, eff. July 1, 1991.