Loading Rates on Waste Stabilization Ponds

by Larry W. Canter,
Andrew J. Englande, Jr.,
Alfred F. Mauldin, Jr.,

Serial Information: Journal of the Sanitary Engineering Division, 1969, Vol. 95, Issue 6, Pg. 1117-1120

Document Type: Journal Paper


Pond performance is affected by temperature, solar radiation, and wind-speed; therefore, facultative pond design should reflect the influence of local climatological conditions. Ponds located in mild climate areas are usually designed with higher loading rates than ponds in cold climate areas. Present recommended loading rates in the United States vary from an average of 26 lb BOD5 per acre per day for the northern states (cold climate) to 44 lb BOD5 per acre per day for the southern states (mild climate). In order to evaluate the effect of higher loading rates on organic matter removals, general pond performance, and selected pathogenic organism removals, model pond studies were conducted at Tulane University in New Orleans and Universidad del Valle in Cali, Colombia. Results indicate that with loading rates up to 100 lb BOD5 per acre per day in mild climate areas the BOD and COD removals will be greater than 90% and 80%, respectively; general pond performance will be satisfactory; and pathogen removals will exceed 99% after 24 days detention time.

Subject Headings: Waste stabilization ponds | Ponds | Cold regions | Loading rates | Solar radiation | Detention basins | Temperature effects | Wind speed | United States | Colombia | South America

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