Run the turbidity experiment again. Clean cuvette after every experiment for consistency and hopefully more accurate readings.
While it's running: look at data from next week and analyze. There might not have been a problem with it despite the pump not being clamped tightly (can compare it to today's results). Symposium presentation and final report. Take all the pictures we need for the symposium presentation (apparatus, lab bench setup, etc.)
Run red dye experiment when Joseph comes.
Redo capture velocity math (since mL/rev was wrong).
Need to calculate flow rate through the influent/effluent tubing (same because they are the same size and flow rate into sed tube = flow rate out of sed tube because of mass balances!) but this is a good flow rate because we know that it works for flocculation
Figured out how to clamp the big pump head tighter (you need to push in the black pegs on the side and then bring them downwards)
(- Put two pumps in parallel for PACl, since the RPM for one pump only goes up to 50 and we want to run it as high as 76 RPM. Initially wanted to reduce the influent velocity of the water, but it makes more sense to use the velocity that we know PACl and fluoride can aggregate at (corresponds to 1.3 mm/s in the original sed tube setup), and in order to test a wider range of PACl concentrations we need a higher RPM than 50 RPM.) --> Didn't end up doing this, just changed the PACl stock concentration to be higher (5 g/L)
Monroe explained On State to us: the state list under "Rules and Outputs" is numbered starting from 0. For the On State in the list of set points, you want to put the number of the state that you're running in (ex. experiment, flushing, warmup, etc).
List of set points we made today:
Slope and y-intercept for coag increment function are in the excel sheet in the google drive
Use the subtract function for water flow rate (coag + water - coag) instead of using the increment function twice, because you can't use the same function for two different things
Other things we need to figure out:
Headloss in flocculator --> does the head loss also steady state after 20 minutes? Is that why the residence time of the flocculator is lower than the time it takes for turbidity to get to steady state?
How do we clean the cuvette while flushing and then also flush at a higher RPM than we're running water at during the experiment? (tried flushing with the same RPM but it's too slow at decreasing turbidity, also tried making the "flushing state" an off state when we can just clean the cuvette and manually run water through the system to flush)
To do today (delete when completed):
Run the turbidity experiment again. Clean cuvette after every experiment for consistency and hopefully more accurate readings.
While it's running: look at data from next week and analyze. There might not have been a problem with it despite the pump not being clamped tightly (can compare it to today's results). Symposium presentation and final report. Take all the pictures we need for the symposium presentation (apparatus, lab bench setup, etc.)
Run red dye experiment when Joseph comes.
Redo capture velocity math (since mL/rev was wrong).
Need to calculate flow rate through the influent/effluent tubing (same because they are the same size and flow rate into sed tube = flow rate out of sed tube because of mass balances!) but this is a good flow rate because we know that it works for flocculation
Figured out how to clamp the big pump head tighter (you need to push in the black pegs on the side and then bring them downwards) (- Put two pumps in parallel for PACl, since the RPM for one pump only goes up to 50 and we want to run it as high as 76 RPM. Initially wanted to reduce the influent velocity of the water, but it makes more sense to use the velocity that we know PACl and fluoride can aggregate at (corresponds to 1.3 mm/s in the original sed tube setup), and in order to test a wider range of PACl concentrations we need a higher RPM than 50 RPM.) --> Didn't end up doing this, just changed the PACl stock concentration to be higher (5 g/L)
Monroe explained On State to us: the state list under "Rules and Outputs" is numbered starting from 0. For the On State in the list of set points, you want to put the number of the state that you're running in (ex. experiment, flushing, warmup, etc).
List of set points we made today:
Other things we need to figure out: