Transcription of Biosolids Technology Fact Sheet: Belt Filter Press
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Biosolids Technology Fact Sheet: Belt Filter Press
United StatesEnvironmental ProtectionAgencyOffice of WaterWashington, 832-F-00-057 September 2000 BiosolidsTechnology Fact SheetBelt Filter PressDESCRIPTIONBelt Filter presses are used to remove water fromliquid wastewater residuals and produce anon-liquid material referred to as cake .Dewatered residuals, or cake, vary in consistencyfrom that of custard to moist soil. Dewateringserves the following purposes:CReducing the volume, thus reducing storageand transportation free liquids before fuel requirements if residuals areto be incinerated or a material which will havesufficient void space and volatile solids forcomposting when blended with a the potential of Biosolids poolingand runoff associated with liquid subsequent processes such asthermal belt Filter dewaters by applying pressure to thebiosolids to squeeze out the water.
C Staffing requirements are low, especially if the equipment is large enough to process the solids in one shift (USEPA, 1987). C Maintenance is relatively simple and can usually be completed by a wastewater treatment plant maintenance crew. Replacing the belt is the major maintenance cost. C Belt presses can be started and shut down
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