Lime Sludge Lagoon Dewatering Using a Mobile Belt Filter Press

by David B. Froula, Gerry Shell Environmental Engineers, Inc, La Vergne, TN, USA,
Gerald L. Shell, Gerry Shell Environmental Engineers, Inc, La Vergne, TN, USA,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract:

A major company was faced with the removal of 2100 cubic yards of lime sludge stored in three lagoons. Because the sludge contained relatively high concentrations of tin and nickel, it was classified as a hazardous waste and required disposal in a hazardous waste landfill located over 400 miles from the manufacturing facility. Because of the high cost due to transportation of the solidified sludge, the contractor investigated several dewatering techniques. A belt filter press was chosen following laboratory work as the most cost efficient equipment for dewatering the sludge. A mobile belt filter press was brought to the sludge lagoon site and was used during the dewatering operation. As an end result, approximately 2100 cubic yards of the sludge was dewatered and transported to the hazardous waste landfill at a cost of under 200,000. 00. A detailed case history of the dewatering operation is presented. (Edited author abstract. )

Subject Headings: Sludge | Hazardous wastes | Dewatering | Filters | Recycling | Lime | Landfills

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