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Ponding Surface Drainage Water for Sediment and Phosphorus Removal

By M.J. Brown, J.A. Bondurant and C.E. Brockway


SEDIMENT and phosphorus (P) removal efficencies of a sediment-retention pond with a capacity of about 3400 m³ receiving surface water runoff from 4050 ha of irrigated land, were measured for five years. Average daily flow through the pond, during the irrigation runoff period, was 347 L/s, with a pond retention time of 2.7 h. The pond removed 65 to 76 percent of the sediment, and 25 to 33 percent of the total P entering the pond. Sediment and phosphorus removal efficiencies depended upon the flow rate and the sediment concentration of surface return flow entering the pond. Sediment and phosphorus were most efficiently removed when the stream flow was 340 to 453 L/s and the sediment concentration was in the range of 20 to 750 mg/L. Sediment removed from the pond was used to cover protruding basalt to improve and expand a golf course

Topics: Drainage water (see Percolation water), Sediment, Mass Import - autoclassified (may be erroneous)
Year: 1981
OAI identifier:
Provided by: USDA - ARS - NWISRL
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