9/
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Accomplishments
- Some organization changes made to the wiki
- Completed teach-in on Tuesday
- Fabricated the seal to prevent water from going to the sed tank
- New part came in to control the leakage in the upflow controller
- Acquired new team member "Tom" from the Flocculator
Outcomes
- Should be able to test the vertical flocculators now that the water cannot get to the sed tanks.
- Class is now informed about the workings at the pilot plant, and we also have a better understanding.
Metrics
- N/A
Issues
- Information from the wiki is hard to divide into the four headings. Some overlap, but will try to finish that for next week
- Still unable to experiment with the sed tanks, but that should change soon.
9/22/08-9/28/08
Sedimentation
Accomplishments
- Read the wiki to get a better grasp of the project
- Prepared for the teach-in for Tuesday
- Went to the plant (9/25) to discuss potential solutions to the leakage in the upflow bucket
- Obtained 0.5" diameter caps for the lamella rods and the materials to seal the pipe to the sed tanks
Outcomes
- Still unable to operate the plant due to leakage in the bucket that controls upflow velocity
- Tom suggested replacing bucket with 12" diameter PVC pipe to prevent leaking
- Will concentrate on wiki organization until plant is running again
Metrics
- N/A
Issues
- Bucket is leaking, even after multiple attempts to caulk, seal, and waterproof
9/15/08-9/21/08
Accomplishments
- Julia and Kellie finished caulking the pipes.
- Team reviewed wiki pages.
- Team met at pilot plant on 09/18/08.
- Julia discussed with Sarah the configuration of the tube flocculator and the alum does needed to form a floc blanket over time.
- Team goals for the semester were updated.
Outcomes
- Could not fully start up the plant because some of the caulk is not dry.
- Much of the sludge build-up was pumped out of the tank.
- Work on the wiki page was discussed and divided up among the sub-teams. Christine will work on the Tube Flocculator pages, while Kellie and Shaina rearrange different parts of the Sedimentation Tank page.
Metrics
- N/A
Issues
- Our method for pumping sludge out of the tank is unnecessarily time-consuming. We will try to find a different way.
- Since we could not start up the plant, Shaina will return on 09/19/08 to check the caulk and begin the running the plant with a 20 mg/L alum dose if the caulk is dry. We need to run the plant consistently at this concentration for some time before we can form a floc blanket.
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8/08-9/14/08
Accomplishments
- Kellie and Julia went to pilot plant on 9/6/08 for training with Sara.
- Sara, Kellie, Julia and Shaina started plant on 9/10/08. Sarah introduced the team to process controller.
- Team met 9/10/08 and created Fall 2008 task list.
- Team went to the pilot plant to caulk leaky pipe, restring tube flocculator, and secure pipes connecting the lamella.
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