Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: Migration of unmigrated content due to installation of a new plugin

Linear Chemical Doser

Wiki Markup
h1. Chemical Doser

{float:right|border=2px solid black|width=250px}
[!Laboratory Research Set-ups^ACDF08 Labeled Context View.jpg|width=250px!|Laboratory Research Set-ups]
{float}

This

...

research

...

is

...

focused

...

on

...

designing

...

a linear automated

...

chemical

...

doser

...

that

...

can

...

automatically

...

adjust

...

the

...

head loss in

...

the

...

chemical

...

dosing

...

system

...

in

...

response

...

to

...

plant

...

inflow

...

changes.

...

Currently

...

plant

...

chemical

...

dosing

...

is

...

determined

...

based

...

on

...

plant

...

inflow

...

and

...

turbidity.

...

The

...

chemical

...

doser

...

(CD)

...

will

...

eliminate

...

the

...

need

...

for

...

plant

...

operators

...

to

...

dose

...

for

...

inflow,

...

reducing

...

the

...

number

...

of

...

variables

...

and

...

therefore

...

opportunities

...

for

...

error.

...

One

...

main

...

reason

...

for

...

the

...

focus

...

on

...

this

...

doser

...

is

...

that

...

it

...

will

...

allow

...

the

...

AguaClara

...

plants

...

to

...

be

...

more

...

flexible.

...

Plant

...

inflow

...

is

...

largely

...

variable

...

with

...

weather,

...

both

...

seasonally

...

and

...

hourly.

...

In

...

Honduras

...

particularly

...

there

...

is

...

a

...

high

...

frequency

...

of

...

late

...

night

...

rain

...

storms,

...

which

...

appreciably

...

increase

...

plant

...

inflow.

...

Ideally

...

the

...

automated

...

chemical

...

dosing

...

system

...

will

...

allow

...

plants

...

to

...

respond

...

to

...

these

...

weather-driven

...

changes

...

without

...

an

...

operator's

...

presence.

...

Subteam

...

semester

...

goals
Weekly subteam progress

Linear Chemical Doser Research: Methods and Results

Fall 2008

Overall Data Analyses

  • Data from all three experimental runs in Fall 2008 analyzed together

Lever arm height versus chem dosing

  • The robust chemical doser from Fall 2008 was tested by fixing the lever arm height at multiple heights while measuring flow controller outflow at different locations along the lever arm (similar to float height vs. chem dosing experiment)

Float height versus chem dosing at multiple lever arm locations

  • The chemical doser apparatus and prototype from Fall 2008 were tested by increasing the float height while measuring flow controller outflow at different locations along the lever arm

Additional Information

Chemical doser design

  • Includes apparatus design and chronological modifications to the experimental set-up

Parts list

Setting up and calibrating a CD

  • Includes specific instructions for setting up and calibrating a CD

Take the new member quiz to become better acquainted with the project