Filter Press Questions | PDF | Filtration

The document discusses plate and frame filter presses. It describes that the key considerations for operating this machine are selecting an appropriate filter medium and determining if the cake produced is compressible or incompressible. Filter aids may also be used to improve filtration rate or clarity. The rate of filtration depends on factors like pressure drop across the filter, surface area, viscosity, and resistance of the filter cake and medium. Selection of the filter medium and equipment depends on traits of the fluid and solids as well as operating parameters. Plate and frame presses offer advantages like versatility, low maintenance, and ability to handle both cake and liquid, but require intermittent operation.

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Related Information

Wastewater Treatment Train Technologies

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Recessed-plate filter presses are used to remove water from liquid wastewater residuals and produce a non-liquid material referred to as 'cake'. Recessed-plate filter presses are among the oldest types of dewatering devices and can produce the highest cake solids concentration of any mechanical dewatering equipment. They are more commonly used in industrial applications than in municipal wastewater facilities.

The biosolids technology fact sheet for recessed-plate filter press provides:

• A description of the recessed-plate filter press
• Applicability to wastewater treatment plants
• Advantages and disadvantages of recessed-plate filter presses
• Design criteria
• Performance capabilities and data
• Operation and maintenance information
• Costs

Fact Sheet: Recessed-Plate Filter Press (pdf)

For more information, please visit recessed plate filter press.