Sedimentation Prototype Final Report

Introduction

Methods

Initial Apparatus Setup

The initial apparatus set up was run by Process Controller which had functions set in place for when the system would turn on, off, or drain. It also included a pressure sensor that would control the flow rate of the system. It was found that the pressure sensor was unreliable and sensitive to changes in the environment. Additionally, the flocculator for this setup led to a high velocity gradient (G) of 129.1/s. This led to the formation of very small flocs.

New Apparatus Setup

Design Parameter

Equations

L/D

V_c

Straw Bundles

Type 1 Straws - 12mm

Type 2 Straws - 5mm

Type 3 Straws - 3mm

Results & Discussion

Conclusions