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Predicting Suspended Solids Removal in Pilot Size Sediment Ponds Using Chemical Flocculation.

Authors
Tapp-JS; Barfield-BJ; Griffin-ML
Source
For Reference Only At Bureau Libraries :471 pages
Link
NIOSHTIC No.
10002600
Abstract
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.
Publication Date
19810101
Document Type
CP; Final Contract Report;
Fiscal Year
1981
NTIS Accession No.
NTIS Price
Identifying No.
OFR 165-82
NIOSH Division
WO;
Source Name
For Reference Only At Bureau Libraries
State
KY;
Performing Organization
Univ. of Kentucky
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