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Predicting Suspended Solids Removal in Pilot Size Sediment Ponds Using Chemical Flocculation.
Tapp-JS; Barfield-BJ; Griffin-ML
For Reference Only At Bureau Libraries :471 pages
Laboratory- and pilot-scale tests were conducted to evaluate the effectiveness of chemical-induced coagulation-flocculation on total suspended solids removal in mine sediment ponds and to evaluate commonly used procedures for designing the ponds. Laboratory-scale jar tests were conducted at total suspended solids concentrations ranging from 2,000 to 200,000 mg/l. Constant- and variable-flow pilot-scale test runs were made in a 4-foot-wide by 20-foot-long model pond at total suspended solids concentrations ranging from 2,000 to 200,000 mg/l. The laboratory- and pilot-scale tests showed that chemical coagulation-flocculation produced suspended solids removal to a concentration of approximately one order of magnitude less than when no chemical was added. The tests also showed that commonly used lumped design procedures deposits model and the overflow rate equations were not generally capable of predicting effluent suspended-solids concentrations similar to those measured.
CP; Final Contract Report;
For Reference Only At Bureau Libraries
Univ. of Kentucky
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division