FORTY-PERCENT SOLIDS AND HIGH SOLIDS CAPTURE-CENTRIFUGATION AT NIAGARA FALLS WASTEWATER TREATMENT FACILITY SUPPORTS NEW OPTIONS FOR BIOSOLIDS MANAGEMENT
Anaerobically digested biosolids dewatering trials were undertaken at the Niagara Falls, Ontario WWTF. The plant uses RBCs for secondary treatment. Two centrifuge suppliers were invited to test dewaterability with portable units at the plant. Dewatered biosolids concentrations averaging near 40 percent solids were achieved with excellent capture rate (97.5 percent) and normal polymer addition rates. Dewatering will be implemented at full scale at this facility to feed a future off site alkaline stabilization process (N-Viro). Significant operating cost savings will be realized by the achievement of the high solids concentration.
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Document Type: Research Article
Publication date: 01 January 2004
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