FIGHTING FIRES WITH ZERO DISCHARGE
Authors: Abraham, Ken; Baclawski, D.; Dean, L.; Johnson, D.
Source: Proceedings of the Water Environment Federation, WEFTEC 2002: Session 41 through Session 50 , pp. 194-219(26)
Publisher: Water Environment Federation
Abstract:A pilot scale operation at the University of Nevada – Reno, Fire Sciences Academy (FSA) confirmed laboratory scale findings which indicated that highly efficient total petroleum hydrocarbon (TPH) removal from firewater is achievable using a dissolved air floatation technology in combination with chemical treatment. A flexible pilot train was designed and installed at Carlin FSA to demonstrate the removal of total petroleum hydrocarbons (TPH) from recycled firewater. A key conclusion from the pilot testing was replacement of gasoline with hexane as the accelerant in a hexane/diesel mixture used for fire training.
The overall results for the pilot were as follows:
Test burns with Hexane/Diesel were successful and appeared to be realistic
For a 1.5 mgd fire water flow and 7,000 gallons of a 33%/67% hexane/diesel blended fuel, key findings are:
2,339 gallons per day of recovered diesel fuel
Typical treated fire water with TPH levels (measured by EPA 1664 with Silica Gel) less than 20 mg/L
Treated fire water that is significantly below RCRA requirements for Benzene and other organics
Treated fire water that is in a range of 6.0 to 7.0 s.u.
Sludges with very low volatile organic constituents analyzed by toxic characteristic leaching procedure
Removal of barium concentrations to less than 2.0 mg/L, the maximum contaminant level for drinking water.
Document Type: Research Article
Publication date: January 1, 2002
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