Table 3.
Spearmen rank correlation obtained by correlating the removal of FIOs and the physicochemical parameters per WWTP.
| CAS |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Vroomshoop |
Garmerwolde |
||||||||
| F-specific RNA | Enterococci | TtC | E. coli | F-specific RNA | Enterococci | TtC | E. coli | ||
| NH4–N | rhoCAS | 0.678 | 0.741 | 0.497 | 0.608 | 0.062 | 0.440 | 0.727 | 0.161 |
| p-value | 0.019 | 0.008 | 0.104 | 0.040 | 0.851 | 0.154 | 0.010 | 0.619 | |
| BOD5 | rhoCAS | 0.478 | 0.384 | 0.336 | 0.413 | 0.559 | −0.427 | 0.210 | 0.126 |
| p-value | 0.115 | 0.218 | 0.286 | 0.185 | 0.062 | 0.169 | 0.514 | 0.700 | |
| COD | rhoCAS | 0.009 | 0.245 | 0.140 | 0.181 | 0.552 | −0.441 | 0.175 | 0.214 |
| p-value | 0.030 | 0.444 | 0.670 | 0.573 | 0.067 | 0.154 | 0.588 | 0.499 | |
| PO4–P | rhoCAS | 0.713 | 0.657 | 0.420 | 0.755 | 0.664 | −0.448 | 0.056 | 0.203 |
| p-value | 0.012 | 0.024 | 0.177 | 0.007 | 0.020 | 0.147 | 0.869 | 0.528 | |
| TSS | rhoCAS | 0.734 | 0.720 | 0.503 | 0.671 | 0.671 | −0.224 | 0.231 | 0.385 |
| p-value | 0.009 | 0.011 | 0.099 | 0.020 | 0.020 | 0.485 | 0.471 | 0.218 | |
| Temp. | rhoCAS | 0.573 | 0.259 | 0.266 | 0.520 | −0.357 | 0.441 | −0.175 | −0.046 |
| p-value | 0.055 | 0.417 | 0.404 | 0.080 | 0.254 | 0.151 | 0.586 | 0.888 | |
| DO | rhoCAS | 0.140 | −0.007 | 0.189 | 0.077 | 0.213 | −0.282 | 0.450 | −0.153 |
|
p-value |
0.667 |
0.991 |
0.558 |
0.817 |
0.505 |
0.374 |
0.142 |
0.636 |
|
| AGS | |||||||||
| Vroomshoop | Garmerwolde | ||||||||
| F-specific RNA |
Enterococci |
TtC |
E. coli |
F-specific RNA |
Enterococci |
TtC |
E. coli |
||
| NH4–N | rhoAGS | 0.238 | −0.329 | −0.335 | −0421 | 0.839 | 0.797 | 0.622 | 0.343 |
| p-value | 0.457 | 0.297 | 0.287 | 0.173 | 0.001 | 0.003 | 0.035 | 0.301 | |
| BOD5 | rhoAGS | 0.531 | −0.070 | 0.153 | 0.245 | 0.615 | 0.650 | 0.713 | 0.636 |
| p-value | 0.049 | 0.834 | 0.635 | 0.444 | 0.037 | 0.026 | 0.012 | 0.030 | |
| COD | rhoAGS | 0.329 | 0.392 | 0.573 | 0.426 | 0.643 | 0.685 | 0.685 | 0.503 |
| p-value | 0.297 | 0.210 | 0.055 | 0.169 | 0.028 | 0.017 | 0.017 | 0.099 | |
| PO4–P | rhoAGS | 0.664 | 0.356 | 0.056 | 0.636 | 0.755 | 0.566 | 0.716 | −0.133 |
| p-value | 0.002 | 0.256 | 0.869 | 0.030 | 0.006 | 0.049 | 0.119 | 0.683 | |
| TSS | rhoAGS | 0.301 | −0.392 | −0.168 | 0.287 | 0.455 | 0.426 | 0.336 | 0.755 |
| p-value | 0.343 | 0.210 | 0.604 | 0.366 | 0.140 | 0.169 | 0.287 | 0.007 | |
| Temp. | rhoAGS | 0.671 | 0.063 | −0.392 | 0.427 | −0.140 | −0.312 | −0.312 | −0.154 |
| p-value | 0.020 | 0.852 | 0.210 | 0.169 | 0.664 | 0.324 | 0.324 | 0.633 | |
| DO | rhoAGS | 0.007 | −0.245 | −0.007 | 0.119 | 0.385 | 0.455 | 0.615 | 0.098 |
| p-value | 0.991 | 0.444 | 0.991 | 0.716 | 0.218 | 0.140 | 0.037 | 0.766 | |