Sedimentation basin retention efficiencies for sediment, nitrogen, and phosphorus from simulated agricultural runoff

C. L. Edwards, Robert David Shannon, A. R. Jarrett

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Simulated agricultural runoff, amended with sediment, nitrogen, and phosphorus, was passed through an experimental sedimentation basin. A series of six sequential runoff events was run through the basin for each of two treatments. The treatments consisted of one-day and three-day detention times, created using a perforated riser outlet structure. Effluent concentrations were monitored for total suspended sediment and various forms of nitrogen and phosphorus. For all runs, an average of 94% of the sediment, 76% of the nitrogen, and 52% of the phosphorus added to the inflow were retained by the basin. The three-day treatment retained significantly more sediment than the one-day treatment (p = 0.02). The majority of the sediment, nitrogen, and phosphorus was released within the first 12 h during the three-day runs and the first 4 h during the one-day runs.

Original languageEnglish (US)
Pages (from-to)403-409
Number of pages7
JournalTransactions of the American Society of Agricultural Engineers
Volume42
Issue number2
StatePublished - 1999

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)

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