Accomplishments
11/09/08
-removed sutro-weir support structure
-played with alum dosing making sure flow rate stays steady and used tank light to determine optimal floc formation
-bought pvc and created connection, so the inlet doesn't pour in over baffles
-bought pvc pipe to cut to reconfigure uniform spacing
-replaced light bulb in tank light, so we can observe floc formation in the flocculator
11/10
-determined that energy dissipation in uniform flocculator was too low
11/11
-Henry and Christine cut pvc piping for uniform baffles (15cm).
- played with alum dosing instead of increment
11/12
-replaced uniform baffles with tapered baffles
-took apart uniform baffles
11/13
-met with Monroe
11/15 - began to replace with 15 cm spacing but decided against it because there might not be enough energy dissipation
-alum pump failure due to stamp box disconnection while replacing baffles
-need to fix stamp box
11/16
-fixed stamp box by unplugging/ replugging connections, - set up siphon to clean tank
-discussed options for tube flocculator tubing/ set up with Mark
-discussed options for grounding tank/ need to ask tom - played with alum dose
11/17
-MathCAD tutorial - determined baffle spacing with minimum energy dissipation requirement of .4 mW/kg
Outcomes
-need to replace baffles in uniform flocculator and end of tapered flocculator with 13 cm spacing
-need to replace baffles/ recut pvc
-Tom is ordering tubing for tube flocculator
Issue
-pump
-electric current in tank