Proposed amendments to 40 CFR Part 63, Subpart MM (National Emission Standards for Hazardous Air Pollutants for Chemical Recovery Combustion Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical Pulp Mills) were published in the Federal Register on October 31, 2019.
The proposed amendments to 40 CFR Part 63, Subpart MM are intended to accomplish the following:
- Add the method for setting the minimum operating limit for scrubber liquor flowrate, which was omitted in the October 11, 2017 final rule.
- Clarify that an operating parameter limit for Automatic Voltage Control (AVC) is not required.
- Address the method for setting the minimum operating limit for fan amperage.
ALL4 ‘s Technical Manager, Lindsey Koos discusses the amendments in depth in her blog here: http://bit.ly/2vED8jb ALL4 is a US-based environmental consulting firm.