Filter Press vs. Centrifuge

Are you trying to determine the best dewatering technique for your industry or unique application? A centrifuge is a machine that spins rapidly and applies centrifugal force to the contents inside in order to separate them. It typically separates liquids from solids. A filter press uses filters and pressure to separate solids and liquids. When deciding between a filter press and a centrifuge, you need to carefully consider the pros and cons of each.

 

Amount of Waste

Before you make your decision between the centrifuge and filter press, consider the amount of waste you’ll be dealing with. For small to midrange waste dewatering, filter presses typically offer a lower cost of ownership and wider operational parameters. For very high volumes of wastewater, centrifuges become more economical.

 

Energy Usage

Centrifuges typically require much higher amounts of energy to operate than a filter press. They have more moving components than a filter press, requiring more sophisticated operators to maintain consistent performance. While filter presses don’t use as much energy or have so many components, they do require more cleaning cycles.

 

Application

Certain applications in dewatering use one technology over the other due to specific characteristics in the application that lend themselves to one technology. For instance, consider the volume of water processing, volume of solids in the water, nature of solids, size of particles, weight of particles, and so on. The best dewatering technology for you may depend on your industry and what type of slurry you produce, whether it’s dry waste, mash, concrete slurry, concentrated brine slurry, or something similar.

Many industries use a combination of methods to dewater slurry. It comes down to flow rates, the nature of your solids, available space at your site, staff capabilities and knowledge, the main goals of your business, and desired outcome. Depending on your site specifics, a custom system can be designed around your application.

 

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