Saving on Filtration Expense by Employing Particle Retention

We thought this article from Process Cleaning was informative.

Cleaner Solutions

Save on filtration expense by employing “step-down” particle retention

Filtration is the process of separating solids from liquids or solids from gases. Some instances of filtration, like maintaining clarity in a swimming pool, are common and familiar, while industrial filtration systems are less familiar to many. In process cleaning, filtration systems are generally employed to filter undesired particulates, reduce waste, or sometimes even improve a product by preventing rejects. But no matter what the application, there are downsides to filtration processes. Recovery and handling of solids or liquids, and what to do with a solid when it ends up as part of the filter media, can plague the filtration system. To reduce the amount of filter media, solution loss, down time and waste, another approach should be considered—step-down particle filtration.

Covering the Basics

Remember the example of the swimming pool? When installed and maintained properly, a pool filter can provide excellent clarity as it recirculates the water in the pool. However, sand-type media, strainers or even depth-type filter cartridges all suffer from the same problem—as solids accumulate on the surface of the filter, they create an ever-denser mass that the water has to push through. Finer and finer particles are retained on the filter media until the retention exceeds the pump pressure capabilities and the water can no longer push through the solids. Th us, filters left unattended on a swimming pool will pull fewer and fewer particles out of the water, until finally failing altogether. But step-down filtration offers a solution to that challenge.

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