PPTF Fall 2008 MM 10-31-2008

October 24, 2008

Accomplishments

• conducted Pilot Plant group teach-ins
• each individual team member presented a group teach-in about an assigned topic related to the Pilot Plant
• cleaned floc tank Sunday, Wednesday, Thursday and Halloween
• setup the tube flocculator
• manipulated the increment alum dosing in the operator selected state
• attempted to use peristaltic pump with tube flocculator
• replaced tapered baffles with uniform baffles to run increment alum tests
• worked on wiki page

Outcomes

• finished group teach-in
• learned about the specific details of the Pilot Plant's operation from the coagulation to sedimentation
• created turbidity profiles on Sun, Tues, Weds and Fri
• improved our method of creating turbidity profiles, by normalizing data and adding more data points
• replaced soft tubing in the tube flocculator with rigid tubing.
• Sunday's turbidity profile inaccurate because increment alum dosing was not set
• also cleaning and sampling method varied each test so data cannot be compared
• two tests on uniform baffles will be run next week with increment alum dosing then the uniform baffles will be replaced by the tapered baffles

Issues

• will need functional pumps for tube flocculator
• need to replace bulb on tank light
• understand how to setup and operate increment alum doing with the process controller