Page History

...

Week 4:
● Analyze results.

Questions:
What problems with solubility or high viscosity should we expect?

Tentative Deadline: 2/18/11 (Week 4)
Estimated Difficulty: Easy

Determine Range of Acceptable Concentrations for PACl
The objective of this experiment is to determine the acceptable range of concentrations for PACl (polyaluminum chloride) by testing at different concentrations and checking if there are solubility or viscosity issues at each concentration.
● Figure out which kind of PACl to be used.
● Calculate the approximate amount of PACl that is needed.

...

Week 4
● Carry out analysis of different concentrations of PACl solution in lab focusing on finding a range of stock concentrations that are suitable for water treatment use. Test the solubility of PACl. Test the viscosity changing with the concentration changing of PACl solution, and find out if there is a spot where the viscosity suddenly rises . Or, if dose controller is applied, instead of viscometer, find out the spot that the linear flow fails.

Week 5
● Analyze results.Questions:
What problems with solubility or high viscosity should we expect?

Tentative Deadline: 2/25/11 (Week 5) Estimated Difficulty: Easy

Develop a Stirrer Design
We will design a simple stirrer system that can be added to a 55 gallon drum or to a Rotoplast tank and assess what is required to dissolve any granular material on the bottom of the tank and what is required to blend the entire solution.

...

Tentative Deadline: 3/18/11 (Week 8)
Estimated Difficulty: Moderate

Develop Stirring System that is Independent of 55 Gallon Drum
We will attempt to create a new design where the coagulant will dissolve before it reaches the bottom of the stock tank because dissolving granular media on the bottom of the tank is difficult. We will also experiment with different methods which an operator could use to create stock solutions that minimize how much stirring is required.

...

Tentative Deadline: 3/29/11 (Week 11)
Estimated Difficulty: Difficult