...
- This will be done by running both sedimentation tanks until a floc blanket forms.
- The turbidity of the effluent will be measured to see what, if any,difference there is between the tanks. (10/23/08)
Construct a new weirs weir for the plant leveling tank that allow for parallel tanks to run at flow of 100, 120 and so that it can run at 70 m/day (currently, the holes on opposite sides are interfering with eachothers flow). Trim the current weirs to account for increased flow rates through the plant, so that they will not overflow onto the floor. (10/27/08)Form
Determine whether or not it is possible to form a floc blanket with lamella in the tank (11/5/08)given the current lamella dimensions we have.
- If no sludge blanket has formed on the lamella tank, but there is a blanket the control tank, compare effluents to see which is more effective. Brainstorm about the design of the lamella, and talk with Monroe or Sara to see what might be a good parameter to change. i.e. the height of the lamella in the tank, the spacing between lamella, the length of the lamella themselves, etc
- To establish whether or not the there is minimum required tank depth below the lamella for blanket formation.
- Determine what the optimal relationship is between the floc blanket and the bottom of lamella before performance is affected.
- If a sludge blanket cannot be formed with the current tank configuration: 1) what is the minimum height needed and 2) how short can the lamella (vertical distance) before they are ineffective.has formed on both tanks, compare the effluents to see if there is any difference in the NTU measurements of the water.
- If there is no sludge blanket in either tank, it can be assumed that flocs are not forming properly. Check the alum dosing to make sure that it isn't too high or too low, and return the next day to check on the tanks. Repeat as necessary until the situation fits a different one of these three categories. (11/14/08)
Test lamella spacing (11/28/08)
...