Statistical analysis was not performed using data from this PEFD trial.
In the previous investigation of the PEFD, the blowdown conductivity set-point was chosen to establish a steady state of four to five cycles of concentration.
Statistical analysis of the combined planktonic HPC data from PEFD trials 1/2 and 2/2 indicated that the observed difference between the planktonic HPCs for T1 (control) and T2 (device) was not statistically significant (p = 0.92).
The technology by which the ED operates is similar in principle to that employed by the PEFD. While the PEFD bombards the water with pulses of electromagnetic energy, the ED exposes the water in the reactor chamber to a fixed electrostatic field.