...
Comparative data of before and after tank improvements (cauking the tank, enlarging holes, and submerged tube settlers) is expected to be available.
Sedimentation Tank
...
- Pilot Plant- Sedimentation Tank
This semester a sedimentation tank was constructed to follow the flocculation tank. It was design to run with just a sludge blanket. This tank was constructed and testing began at the end of the semester. A preliminary design for a sedimentation tank, with settling via lamella was designed as well, but this design is currently still under review.
Summary:
One of out main goals for the semester is to install an AguaClara style sedimentation tank in line with the pilot plant flocculator. We would like to utilize a sludge blanket in the sedimentation tank to hopefully get us closer to the 1 NTU goal. This will be particularly difficult because we have a limited amount of energy head to deal with along with limited space available to us at the water treatment plant. We plan to have siginifigant design work done by March 14th so that we can begin construction sometime this semester. We are also looking into the potential to add a second sedimentation tank with lamella instead of a sludge blanket to get a comparative look at the benefit of the sludge blanket. We will need to design a connection system between the flocculator and the sedimentation tank that has sufficiently low shear values so as to not break up the flocs formed in the floc tank.
The design will be reviewed the week after Spring Break and if the design is deemed plausible construction will begin the following week.
Past Research
- The Research Log documents the reseach that is being done in the current semester.
In the Spring '07 semester, the pilot plant was designed and constructed.
...
History of past research and details of current research can be found on wiki page entitled Pilot Plant Construction and Past Research. Details of the Sedimentation Tank Research can be found on the wiki page entitled Pilot Plant- Sedimentation Tank.