The fate of metals in forest industry wastewater treatment systems.
The capture/removal of a range of metals was estimated for a number of pulp and paper wastewater treatment systems. Both long-term wastewater data and accumulated sludge data were examined. Only copper and lead were effectively captured (greater than 50%) by all sites and estimate methods. Zinc capture exceeded 50% in all but one case. Qualitatively, iron, aluminium, cadmium, and cobalt were usually captured to a significant extent. The sludge inventory-based approach and the wastewater system inlet-outlet approach gave reasonably similar capture estimates.
Weyerhaeuser Company, New Bern, NC 28563-1391, USA. woody.bryant@weyerhaeuser.com
C W
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Bryant
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Pagoria
D004784:Environmental Monitoring; D016468:Forestry; D007220:Industrial Waste; D019216:Metals, Heavy / Q000032:analysis* / Q000302:isolation & purification; D014865:Waste Disposal, Fluid / Q000379:methods*
D007220:Industrial Waste; D019216:Metals, Heavy