A wastewater filter press is a piece of equipment used in the treatment of wastewater to separate solids from liquids. The process works by using a combination of pressure and filtration media to separate the solids from the liquid.
Here’s a general explanation of how the process works:
Pretreatment: The wastewater is first processed to remove large solid particles. This is usually done using a bar screen or a grit chamber.
Feeding: The pretreated wastewater is then fed into the filter press.
Filtration: The wastewater is pumped into a series of filter plates, which are stacked one on top of the other. The filter plates contain a filtration media, such as a filter cloth, which is used to trap the solids in the wastewater.
Pressing: As the wastewater is filtered through the filter plates, pressure is applied to the filter cakes (the solids that have been trapped in the filter cloths) to remove as much liquid as possible. This is typically done using hydraulic cylinders, which increase the pressure on the filter cakes.
Drying: After pressing, the filter cakes are removed from the filter press and are typically dried to remove any remaining liquid.
Disposal: The dried solids can be disposed of or further processed for reuse, depending on the type of solids and their final use.
Overall, the filter press is a simple and efficient way to separate solids from liquids in wastewater treatment. By using pressure and filtration media, it provides a reliable and cost-effective method of removing solids from wastewater.
