Thickener block

Input

1. WAS flow from settler block
2. function script in Matlab: thickener_bsm2
3. function parameters: THICKENPAR
   1. The percentage of suspended solids in the underflow of the thickener (thickener_perc) = 7%
   2. The percentage of suspended solids removed (TSS_removal_perc) = 98%
   3. X_I2TSS = 0.75
   4. X_S2TSS = 0.75
   5. X_BH2TSS = 0.75
   6. X_BA2TSS= 0.75
   7. X_P2TSS = 0.75
4. Calculated parameters:
   1. TSSin = X{i}2TSS[i]*u[i] where u[i] is the particulate input i (X_I, X_S, X_BH, X_BA, X_P)
   2. thickening_factor = thickener_perc * 10000/TSS_in
   3. Underflow factor?(Qu_factor) = TSS_removal_perc/(100*thickening_factor)
   4. thinning_factor = (1.0 - TSS_removal_perc/100)/(1-Qu_factor)

Output

1. Overflow
   1. if thickening_factor > 1
      1. Soluble and temperature: output = input
      2. Particulate: output = input*thinning_factor
      3. TSS: TSS_in*thinning_factor
      4. Flow: overflow = input*(1-Qu_factor)
   2. if thickening_factor <= 1
      1. The influent is too high on solids to thicken further. All the influent leaves with the underflow
      2. output = 0
2. Underflow
   1. if thickening_factor > 1
      1. Soluble and temperature: output = input
      2. Particulate: output = input*thickening_factor
      3. TSS: TSS_in*thickener_factor
      4. Flow: underflow = input*(Qu_factor)
   2. if thickening_factor <= 1
      1. The influent is too high on solids to thicken further. All the influent leaves with the underflow
      2. output = input for all except for TSS. TSS_ouput = TSS_in