Industrial water mechanical upflow sand filters / Continuous Backwash Sand Filters 

Continuours Backwash Upflow Sand Filters
In municipal applications, the continuous backwash sand filter is ideal for wastewater treatment plants needing to meet stringent discharge criteria for Biochemical Oxygen Demand (BOD), Nitrogen (TN), Phosphorus (TP), and Suspended Solids (TSS).  The addition of the continuous backwash filtration process can leave existing infrastructure unchanged, without adding excessive capital costs.

For industrial and process water applications, the continuous backwash filter is effective in the treatment of surface waters, ground waters, and side stream biofiltration for cooling water systems.  It has also been proven effective in removing iron and manganese.

Washwater or other process streams can also be filtered as part of an overall integrated reuse design and is ideally suited for precipitation and filtration of metals.  

Applications:

Municipal

• Suspended solids reduction
• Water reuse
• Denitrification and nitrification
• Chemical phosphorus removal
• Pretreatment to other processes

Industrial

• Metal finishing
• Backwash recovery
• Process water
• Cooling tower blowdown
• Steel mill scale
• Chemical processing
• Ideal for pretreatment in lieu of gravity filters