Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection - Wisconsin Pollutant Discharge Elimination System › Chapter NR 284 - Pulp And Paper Manufacturing › Section NR 284.03 - Definitions

Current through June 24, 2024
The following definitions are applicable to terms used in
				  this chapter. Definitions of other terms and meanings of abbreviations are set
				  forth in chs.
				  NR 205 and
				  211, and the Development Document
				  for Effluent Limitations Guidelines and Standards for the Pulp, Paper and
				  Paperboard and the Builders' Paper and Board Mills Point Source Categories, EPA
				  440/1-82/025, October, 1982.
Note: Copies of this document are available for inspection at
				  the office of the department of natural resources, the secretary of state's
				  office, and the office of the legislative reference bureau, and may be obtained
				  for personal use from the Superintendent of Documents, U.S. Government Printing
				  Office, Washington, D.C. 20460.
(1)
				"Acid sulfite cooking liquor" means sulfite cooking liquor having a pH less
				than 3.0.
(2) "BCT bleached kraft
				subcategory" includes those mills at which bleached kraft pulp is produced in a
				full cook process employing a highly alkaline sodium hydroxide and sodium
				sulfide cooking liquor.
Note: Principal products include paperboard (B), coarse
				  papers (C), tissue papers (T) and market pulp.
(3) "Bisulfite cooking liquor" means sulfite
				cooking liquor having a pH betwee n 3.0 and 6.0.
(4) "Builders' paper and roofing felt
				subcategory" includes those mills at which heavy papers used in the
				construction industry are produced from wastepaper, wood flour and sawdust,
				wood chips, and rags. Neither bleaching nor chemical pulping processes are
				employed on-site.
Note: Principal products include saturating, deadening, and
				  flooring papers, and roofing felt.
(5) "Corrugating medium furnish subdivision"
				includes those mills in the paperboard from wastepaper subcategory where only
				recycled corrugating medium is used in the production of paperboard.
(6) "Cotton fiber furnish subdivision"
				includes those mills in the nonintegrated-fine papers subcategory which produce
				a paper product containing equal to or greater than 4% cotton fibers.
(7) "Deink subcategory" includes those mills
				at which brightened or bleached deinked pulp is produced from wastepapers using
				an alkaline process to remove contaminants such as ink and coating pigments.
Note: Principal products include fine papers such as
				  printing, writing and business papers, tissue papers, newsprint and market
				  pulp.
(8) "Dissolving kraft
				subcategory" includes those mills at which a highly bleached pulp is produced
				by a full cook process employing a highly alkaline sodium hydroxide and sodium
				sulfide cooking liquor. Included in the manufacturing process is a precook
				operation termed prehydrolysis.
Note: The principal product at these mills is a highly
				  bleached and purified dissolving pulp used principally for manufacture of rayon
				  and other products requiring the virtual absence of lignin and a very high
				  alpha cellulose content.
(9) "Dissolving sulfite pulp subcategory"
				includes those mills at which a highly bleached pulp is produced in a full cook
				process employing strong solutions of sulfites of calcium, magnesium, ammonia
				or sodium.
Note: Principal products include viscose, nitration,
				  cellophane or acetate grade pulps which are used principally for the
				  manufacture of rayon and other products that require the virtual absence of
				  lignin.
(10) "Fine bleached
				kraft subcategory" includes those mills at which bleached kraft pulp is
				produced in a full cook process employing a highly alkaline sodium hydroxide
				and sodium sulfide cooking liquor.
Note: Principal products are fine papers, which includes
				  business, writing and printing papers, and market pulp.
(11) "Full cook" means chemical pulping
				methods which employ the heating under pressure of wood, water and chemicals in
				a closed vessel to a temperature sufficient to separate the fibrous portion of
				the wood by dissolving lignin and other nonfibrous constituents.
(12) "FWP" means "from wastepaper."
(13) "Groundwood-chemi-mechanical
				subcategory" includes those mills at which pulp is produced, with or without
				brightening, utilizing a chemical cooking liquor to partially cook the wood
				followed by mechanical defribration by refining, resulting in yields of 90% or
				greater.
Note: Principal products include fine papers, newsprint,
				  molded fiber products and market pulp.
(14) "Groundwood-CMN papers subcategory"
				includes those mills at which groundwood pulp is produced, with or without
				brightening, utilizing only mechanical defribration by either stone grinders or
				refiners.
Note: Principal products include coarse papers (C), molded
				  fiber products (M), newsprint (N) and market pulp.
(15) "Groundwood-fine papers subcategory"
				includes those mills at which groundwood pulp is produced, with or without
				brightening, utilizing only mechanical defribration by either stone grinders or
				refiners.
Note: Principal products are fine papers, which includes
				  business, writing and printing papers, and market pulp.
(16) "Groundwood-thermo-mechanical
				subcategory" includes those mills at which pulp is produced in a brief cook
				process employing steam, with or without the addition of cooking chemicals,
				such as sodium sulfite, followed by mechanical defribration by refiners, which
				are frequently under pressure, resulting in yields of approximately 95% or
				greater. The pulp may be brightened using hydrosulfite or peroxide bleaching
				chemicals. Principal products include market pulp, fine papers, newsprint and
				tissue papers.
(17) "Integrated"
				means a term used to describe a pulp and paper mill operation in which all or
				some of the pulp is processed into paper at the mill.
(18) "Market bleached kraft subcategory"
				includes those mills at which bleached pulp is produced in a full cook process
				employing a highly alkaline sodium hydroxide and sodium sulfide cooking liquor.
Note: The principal product is papergrade market pulp.
(19) "New source" for direct
				dischargers means any point source the construction of which commenced after
				January 3, 1983; and for indirect dischargers means any building, structure,
				facility, or installation from which there is or may be a discharge of
				pollutants, the construction of which commenced after January 6,
				1981.
(20) "Noncontinuous
				discharger" means a point source which discharges wastewaters pursuant to a
				WPDES permit which:
(a) Prohibits the
				discharge of pollutants during specified periods of time in excess of 24 hours
				in duration for purposes other than control of treatment plant upsets,
				and
(b) Specifies that annual
				average limitations are applicable to such a discharge.