Water quality model for a river receiving paper-mill effluents and conventional sewage
During low flow periods in summer, portions of the Pigeon River, North Carolina, have experienced depressed dissolved oxygen concentrations. The Pigeon River receives multiple point source effluents from several wastewater treatment facilities and a large kraft paper mill located in Canton, NC, which contribute the oxygen-demanding and nutrient loads on the river. A water quality model was constructed to examine processes and sources contributing to the observed oxygen declines and to evaluate the specific management alternatives. Simulations showed that relatively little of the CBOD materials released by the mill were degraded within the river and were subsequently 'deposited' in the reservoir at the end of the modeled river segment. Reductions in CBOD concentrations could be generally accounted for by tributary dilution. However, nitrogenous oxygen demanding materials released by the mill (e.g., NH3) created a considerable demand for oxygen within the modeled segment of the river.
- Research Organization:
- Environmental Protection Agency, Gulf Breeze, FL (United States). Environmental Research Lab.
- OSTI ID:
- 7114728
- Report Number(s):
- PB-92-195643/XAB; EPA-600/J-92/207
- Resource Relation:
- Other Information: Pub. in Ecological Modelling, v58 p25-54 1991. Prepared in cooperation with Versar, Inc., Columbia, MD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NORTH CAROLINA
WATER POLLUTION
PAPER INDUSTRY
ENVIRONMENTAL EFFECTS
WATER QUALITY
MATHEMATICAL MODELS
BIOCHEMICAL OXYGEN DEMAND
CHEMICAL EFFLUENTS
CHLORIDES
INDUSTRIAL WASTES
NITROGEN CYCLE
NUTRIENTS
POINT POLLUTANT SOURCES
WASTE DISPOSAL
CHEMICAL WASTES
CHLORINE COMPOUNDS
DEVELOPED COUNTRIES
ENVIRONMENTAL QUALITY
HALIDES
HALOGEN COMPOUNDS
INDUSTRY
MANAGEMENT
NONRADIOACTIVE WASTES
NORTH AMERICA
POLLUTION
POLLUTION SOURCES
USA
WASTE MANAGEMENT
WASTES
WOOD PRODUCTS INDUSTRY
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)