Challenges for Fall 2009 and Beyond

Current Subteam Leader: Rachel Philipson

Number of team members needed: 3-4

Important team member skills:

• Fluid Dynamics Background
• Self-motivated
• Curious student
• Eager to learn

Challenges

• To continue investigating the velocity gradient by varying the floc density and plate settler spacing

• Recommending one team member who's sole responsibility is troubleshooting: This requires extensive knowledge of how process controller and the experimental apparatus work

Challenges

• Continue to improve model of critical velocity with respect to floc roll-up with Matt and Monroe, try to determine what consitutes failure in terms of floc roll up

• Run experiments to test floc roll-up utilizing ramp function for a variety of tube settler sizes and attempting to visualize failure (flow rate/critical velocity at which a majority of flocs begin to roll-up)

• Investigate ways to optimize plate settler performance given changes in influent properties Investigating the same effect of influent parameters such as natural organic matter, pH, and alkalinity on floc performance and plate settler performance

• Velocity gradient studies on an influent turbidity with natural organic matter

• The effects of biological flocs

• Continue to investigate the filter foam

• Begin to write a paper on floc roll up