The Department of Paper and Bioprocess Engineering is located in Walters Hall, which is devoted to education and research in pulp, paper, bioproduct, bioenergy, and allied fields. In addition to a large number of special purpose laboratories and highly sophisticated scientific equipment, there is a pilot plant equipped with machinery and instrumentation for studies of pulping, pulp cleaning and screening, recycling, refining, and papermaking. Equipment includes two complete paper machines, one 48-inch and one 12-inch; two pressurized refiners for mechanical pulping; and auxiliary equipment. An environmental engineering laboratory includes various methods of paper recycling and waste treatment. A state-of-the-art laboratory for testing paper and other materials is in service. A modern bioprocess engineering lab includes fermenters, spectrophotometer, shakers, anaerobic chamber, incubators, autoclaves, bio- and chemical reactors. Pilot facilities also include equipment for the biological treatment and the separation processes for production of specialized chemicals and polymers from wood, including a 400-liter fermenter, nanoseparation equipment, and incubators for the growth of ligninolytic organisms. This equipment, as well as the extensive chemical engineering laboratory, is employed for both education and research. Computer hardware and software are continually updated for teaching and research in process control and simulation.