Walnut Filters

Paramount designs, manufactures, deliver Walnut filter for removal of oil and grease in water. Paramount can deliver these in various capacities and sizes tailor made on a turnkey basis, or as package units depending on the size & logistics for any flow capacity. Paramount designs these plants in manual or semiautomatic made based on PLC or DCS operations.

Walnut filter shell filtration was developed as a higher performance method of filtering free oil and suspended solids in applications where sand and multi-media filter were traditionally used.

Today, Walnut shell filter is widely accepted for polishing of oily water in the upstream oil field, downstream refineries. After the filtration cycle for a period of time, the bed becomes loaded with dirt and contaminants and begins to lose its effectiveness as a filter. It will begin to clog preventing fluid from passing thorough the bed. Hence, the bed is periodically backwashed to remove the dirt and contaminations from the filter media.

Back washing of the media is done by simultaneously air scouring and water wash at high rates when most of the accumulated contaminants are carried out to the drain.Thorough agitation and good backwash is the key requirement for better performance and life the Walnut shell filter.

The filter can be operated manually or automated. These filters are useful in all fields of water injection or in other places where contaminated water need to be treated and reused / recycled or as a pretreatment to RO plants.