CDC SU2009 RP

Introduction and Theory

Provide that focuses on what it is your team is studying and the theory behind how it works. Provide a rationale for its basis in AguaClara. This should be maximum of 2 paragraphs in length.

List of Parameters

In our rapid mix experiment we plan to vary:

• Alum Dosage (35 mg/L, 45 mg/L, 55 mg/L, 65 mg/L),
• Turbidity
• The Location of the alum addition (above water surface vs below water surface).

We are first testing the alum dosage to determine whether it is the cause of the film formation. We hypothesize that as the alum dosage increases there will be an increase in the formation of the surface film.

We also are testing to the effect of natural organic matter (NOM) on film formation. We hypothesize that as the turbidity of the water increases the film formation.

The film formation may not be due to the alum dosage or the turbidity, it may in fact be due to the location that the alum is added to the system. We hypothesize that the film formation will be greater when the alum is applied to the surface of the water.

Experimental Design

Before writing experimental design, review past experiments by previous AguaClara teams. Then based upon these past experiments generate a list of experiments that your team would like to conduct.

Choose the first experiment your team plans on conducting from the list and write a more detailed paragraph explaining what parameters you are varying and how the experiment will be conducted.

Write another paragraph about the anticipated results that you predict will occur from your experiment. This will be important later when your team analyzes experimental data in case there