Wastewater Effluent Discharge to Cooling Lakes

by Ronald D. Taylor, Research Asst.; Dept. of Civ. Engrg., Univ. of Texas at Austin, Austin, Tex.,
Gerard A. Rohlich, (F.ASCE), Prof.; Dept. of Civ. Engrg., Univ. of Texas at Austin, Austin, Tex.,
James E. Dailey, (M.ASCE), Asst. Prof.; Dept. of Civ. Engrg., Univ. of Texas at Austin, Austin, Tex.,


Serial Information: Journal of the Environmental Engineering Division, 1977, Vol. 103, Issue 5, Pg. 907-918


Document Type: Journal Paper

Abstract: A 1-yr field study was conducted in Lake Braunig near San Antonio, Tex., to estimate the water quality response to direct discharge of wastewater effluent. Field data indicate Lake Braunig is highly eutrophic, yet its uses for recreation and electric power plant cooling are maintained. Power plant operating problems associated with eutrophication have been carbonate scaling and dezincification of condensers and treatment of lake water for boiler feed water. Nuisance algae which cause condenser fouling are practically nonexistent, with the predominant genera being diatoms. Study results indicate that direct discharge of wastewater effluent to cooling lakes is feasible if desirable genera such as diatoms dominate the ecosystem.

Subject Headings: Cooling (wastewater treatment) | Lakes | Water discharge | Effluents | Temperature effects | Power plants | Field tests | Water treatment plants | Hydro power | Water quality | North America | Texas | United States | San Antonio

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