Technical Bulletin No. 0406: Emission Of Reduced Sulfur Compounds From Kraft Process Brownstock Diffusion Washer Vents

In the Draft Background Information Document and Draft Proposed Emission Standards, which were part of the New Source Performance Standards (NSPS)-mandated review of NSPS for the kraft pulping industry, EPA included a proposal that total reduced sulfur (TRS) emissions from kraft brownstock diffusion washers be subject to control. In considering brownstock diffusion washer control, EPA assumed that TRS emissions from this source were similar to those from drum washers. The estimates for cost effectiveness included an assumed emission rate, although the estimated volume which might have required treatment had been reduced.