Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluating ACQ as an Alternative Wood Preservative System.
Author Chen., A. S. C. ;
CORP Author Battelle, Columbus, OH.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher Jan 94
Year Published 1994
Report Number EPA-68-C0-0003; EPA/600/R-94/036;
Stock Number PB94-159928
Additional Subjects Wood processing industry ; Hazardous materials ; Wood preservatives ; Pollution prevention ; Waste treatment ; Waste minimization ; Industrial plants ; Environmental protection ; Air pollution ; Ammonia ; Arsenic ; Chromium ; Waste water ; Storm water runoff ; Leaching ; Tests ; Waste reduction ; Pressure treatment ; ACQ(Ammoniacal copper/quarternary ammonium)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB94-159928 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/01/1994
Collation 120p
The evaluation addresses the waste reduction/pollution prevention and economic issues involved in replacing chromated copper arsenate (CCA) with ammoniacal copper/quaternary ammonium (ACQ) as a way to preserve wood. The most obvious pollution prevention benefit gained by using ACQ is eliminating the use of arsenic and chromium, both of which generate hazardous wastes and a risk of contaminating the environment via chemical spills. Because most treatment plants are self-contained in that they reuse all wastewater produced within the plant and on the drip pads, no liquid waste problems were addressed for either the CCA or the ACQ treating process. The ACQ system generates more air pollution than does the CCA system, mainly as ammonia (NH3). For a plant with an annual production of 1 million cu ft (or about 20 million board feet), 90,000 lb of NH3 would be released per year from the ACQ treatment operations and the ACQ-treated wood. The treated wood, after being transferred from the drip pads to the outside storage yard, could become a major source of contamination.