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Filters Information Overview

Filtration is required on multiple projects for current NPDES permit requirements. If the NPDES permit has a phosphorus limit of < 0.75 ppm then we would suggest filtration products to remove TSS to < 2 ppm.

Phosphorus is contained in a soluble form and inside the biomass. Filtration will remove the TSS to less than 2 ppm TSS which wil reduce the solids discharged. Approximately 20% of the efluent TSS is phosphorus; therefore the tighter the limits the more important the level of filtration required.

     
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