Chemical Dose Controller

Overview

The chemical dose controller is currently comprised of three projects, the linear flow orifice meter, the flow controller, and the chemical doser. These components of the system act together to allow the plant to respond to changes in inflow by both linearizing the change in plant flow and automatically adjusting chemical dosing to the plant. With this system AguaClara plants should be more resilient because operators are only required to adjust chemical dosing settings based on incoming turbidity, not based on flow rates.

Stay up-to-date on this project by checking the [Meeting Minutes] and [goals]

Current Research Teams

[Linear Chemical Dose Contoller]

Nonlinear Chemical Dose Controller

• A linear dose controller has been designed to control chemical doses when flow in the dosing tube is laminar based on a linear relationship between headloss in the dosing tube and entrance tank level. This relationship does not hold when flow in the dosing tube is turbulent. Therefore, a chemical doser with a constant chemical dose response to nonlinear changes in plant flow is being designed.

[Gracias Entrance Tank Design]

• We are currently working on the design of the entrance tank for a new plant that will be built in Gracias.