Influent Dispersion Well™ (iDW)

PROCESS OVERVIEW:

Designed for:

• Influent velocity control
• Energy dissipation
• Flocculation promotion

The unique IDW design has demonstrated, in side-by-side testing, substantial improvements in lowered TSS.

The net result of the advance design being better effluent clarity when compared to traditional energy dissipating inlet designs.

KEY DESIGN FEATURES:

An inner baffle assembly reduces the initial inlet velocity as liquid is introduced from the center column and impinges directly on the baffle plates. 

Additionally, the baffle plates shadow the outlet ports of the IDW so that high energy discharge from the column does not flow directly out of the well at any time. 

To maximize velocity dissipation as the flow leaves the IDW, the liquid is directed in a tangential direction by port of expanding area to gracefully introduce the influent into the feedwell.  

Adjustable Depth IDW Scoop Design

Adjustable Depth IDW Scoop Design

The baffled IDW design was tested against a conventional dispersion design at a ClearStream installation in New Hampshire.

In before and after studies of effluent quality during high clarifier flow scenarios, the ClearStream baffled IDW design performed significantly better than the conventional unit.

When compared to the conventional energy dispersion design, the enhanced design was a significant facto in educing effluent TSS measurements 86.0% lower than the baseline case (2.24 mg/L versus 16.04 mg/L).

145’ SECONDARY CLARIFIER – NEW HAMPSHIRE, USA