... biomass-based waste and byproduct fuels (e.g., wood, spent pulping liquors, chips, sawdust, bark). Despite its large use of biomass-based fuels, the paper manufacturing industry is the fourth ... products manufactured, processes used, and the date a facility or process was built or modified. Individual states may also impose further restrictions on emissions and effluents. Table 1-5 summarizes ... the U. S. Pulp and Paper Industry 19 Table 2-5. Summary of Environmental Aspects of Pulping Processes Process Air Emissions Process Effluents Wastes, Residuals, or Byproducts Chemical Pulping...