TN 1.10 EcoPure BioFilter Considerations

TN 1.10 EcoPure BioFilter Considerations.pdf

TN 1.10 EcoPure BioFilter Considerations

This document is the TN 1.10 EcoPure BioFilter Considerations. The components, functionality, configurations, treatment, design and installation discussed.

The ADS EcoPure BioFilter is a manufactured water quality treatment device intended for removal of Total Suspended Solids (TSS), Oil & Grease, Trash, Bacteria, and Nutrients such as Nitrogen & Phosphorus. The versatile unit introduces the ability to receive both surface and subsurface runoff, allowing it to be installed in nearly any location.

These two inlet modalities combine with the option for placement of plant life above the unit, which introduces a third inlet option –infiltration. Once installed, the unit’s ability to treat through settling, filtration, and sorption ensure sufficient water quality treatment of the influent runoff.

EcoPure components list concrete vault, FlexStorm Pure wall-mounted filter, PVC manifold piping, biofiltration internal HDPE manifold, precut infiltrator chambers and select plant media.

The functionality is listed in phases. Water enters the unit through a throat inlet or subsurface influent pipe. The water passes through the FlexStorm Inlet Filter immediately upon entering the unit. Water begins to collect in the pretreatment cell, the upstream of the two chambers in the vault. The collection of water in this cell allows for settlement of TSS before further conveyance. After water has ponded high enough in the pretreatment cell, it will convey through the inlet risers to the Infiltrator

Chambers. The height of the inlet risers is set so that this entrance point will create enough driving head for the water to filter through the proprietary granular media shortly after achieving flow through the risers. Following filtration by this engineered media, the water will eventually collect in the HDPE internal manifold where it will be conveyed to the PVC outlet manifold and then downstream. During peak storm events where the treatment capacity of the system is exceeded, water will pond up higher in the pretreatments cell and begin to flow through the internal bypass pipe to be conveyed directly downstream.

Configuration options and treatment parameters with table and cross section diagram provided. Design considerations for inverts/elevations, bypass are discussed. Installation tips and plant considerations are recommended.

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