Md. Code Regs. 26.11.14.06

Current through Register Vol. 51, No. 12, June 14, 2024

Section 26.11.14.06 - Control of Volatile Organic Compounds

A. Applicability. This regulation applies to a person who owns or operates an installation that has actual VOC emissions of 20 pounds or more per day that is located at a kraft pulp mill that has a potential to emit total plantwide VOC emissions of 25 tons or more per year.

B. Control of VOC Emissions from Specific Installations.

(1) Condensate steam strippers. Off gases from condensate steam strippers shall be collected and combusted.

(2) Digester Blow Tank Systems and Knotters.

(a) Condensates from digester blow tank systems shall be collected and treated in a condensate steam stripper or other control system.

(b) The non-condensable exhaust from a digester blow tank system shall be collected and combusted.

(3) Evaporators.

(a) All non-condensable gases from evaporators shall be collected and combusted.

(b) Condensates from the evaporators shall be segregated so that the foul condensates are collected and treated in a condensate steam stripper or other control system.

(4) Brown Stock Washers.

(a) Wash water for brown stock washers shall consist of any combination of fresh or clean water and clean condensates.

(b) Air emissions from the brown stock washers shall be collected and combusted.

(5) Recovery Boilers.

(a) A recovery boiler that burns black liquor as fuel shall be equipped with a black liquor oxidation unit.

(b) At least 50 percent of the flue gas generated annually from recovery boilers shall be treated with a dry bottom precipitator with a salt cake mix tank.

(6) Smelt Dissolving Tanks. Only clean water or clean condensates shall be used in the scrubbing solution makeup liquids.

(7) The evaporators, digester blow tank systems, and brown stock washers shall be controlled by removing 90 percent or greater of the condensate VOC loading by demonstrating:

(a) That the VOC removal or destruction efficiencies of the condensate stream stripper is 90 percent or greater; or

(b) Through a system analysis of the condensate stripper, evaporators, digester blow system tanks, and brown stock washers that VOC removal or destruction efficiency is 90 percent or greater.

C. Control of VOC Emissions from Miscellaneous Sources. VOC emissions from all other miscellaneous sources at a kraft pulp mill including screen rooms, black liquor oxidizer, black liquor storage tanks, pulp storage tanks, pulp mill sewer vents, bleach rooms, and paper machines, shall be reduced by processing pulp from the brown stock washers in conformance with §B(4) of this regulation.

D. Testing and Record Keeping.

(1) Tests shall be performed annually using EPA Test Method 25D found in 40 CFR Part 60 or other approved methods by the Department as part of a State Implementation Plan (SIP) revision to demonstrate the collective VOC removal efficiency of the condensate steam stripper and other control systems as required.

(2) All other VOC emissions tests shall be performed using EPA test methods 25, 25A, or 25B which are found in 40 CFR Part 60.

(3) On or before March 1, 2001, a person who owns or operates a kraft pulp mill shall submit a test protocol to the Department for approval.

(4) The test results of each test shall be submitted to the Department within 60 days following completion of each test.

(5) Stack test reports and other records relating to compliance with the requirements in this chapter shall be maintained for not less than 5 years and made available to the Department upon request.

Md. Code Regs. 26.11.14.06

Regulation .06 adopted effective January 8, 2001 (27:26 Md. R. 2359)
Regulation .06 amended effective October 15, 2001 (28:20 Md. R. 1783)
Regulation .06B, D amended effective 41:4 Md. R. 306, eff.3/3/2014