Respondent owns and operates a pulp and paper mill. Respondent operates the pulp mill using the Kraft process to digest wood chips under pressure in batch digesters for pulp production. The finished cooked Wood chips are blown to blow tanks, Which reduce the pressure and separate steam and digester gases from the pulp. Uncondensed steam and gases generated by this process include regulated substances and other extremely hazardous substances. The un-condensed stream and gases are transferred via ducts through the Munters Mist Eliminator to the blow heat accumulator. The gases continue though the blow heat evaporators and additional processing that eventually recovers the gases into turpentine, removes the thermal energy, and condenses the steam.