TABLE 4.
Wastewater sampling sites and physicochemical properties of the wastewater samples analyzed in this studya
| Site | Type | n | pH | Turbidity (NTU) | Conductivity (μS/cm) | Ammonium (mg/L) | Phosphate (mg/L) |
|---|---|---|---|---|---|---|---|
| WWTP1 | Grab | 1 | 7.12 | 10.6 | 2145 | 5.0 | 2.06 |
| WWTP2 | Grab/comp | 8 | 7.45 ± 0.05 | 53.5 ± 12.3 | 889 ± 126 | 25.3 ± 7.9 | 2.15 ± 0.51 |
| WWTP3 | Grab | 1 | 7.61 | 202.0 | 1,212 | 5.1 | 3.09 |
| WWTP4 | Grab/comp | 9 | 7.52 ± 0.06 | 95.1 ± 18.7 | 1,644 ± 260 | 30.0 ± 5.0 | 2.90 ± 0.33 |
| WWTP5 | Comp | 10 | 7.57 ± 0.04 | 101.3 ± 8.7 | 1,236 ± 91 | 45.2 ± 5.9 | 2.56 ± 0.23 |
| WWTP6 | Grab/comp | 9 | 7.59 ± 0.09 | 64.3 ± 11.3 | 1,225 ± 264 | 38.9 ± 16.4 | 2.68 ± 0.64 |
| WWTP7 | Grab/comp | 9 | 7.57 ± 0.07 | 103.6 ± 15.7 | 1,208 ± 98 | 26.0 ± 6.0 | 2.39 ± 0.31 |
| WWTP8 | Comp | 9 | 7.37 ± 0.06 | 134.3 ± 20.5 | 1,076 ± 251 | 24.8 ± 7.8 | 2.11 ± 0.51 |
| WWTP9 | Grab/comp | 9 | 7.46 ± 0.08 | 53.1 ± 11.9 | 1,042 ± 105 | 28.3 ± 6.3 | 3.47 ± 0.36 |
| WWTP10 | Grab/comp | 7 | 7.51 ± 0.05 | 117.3 ± 21.4 | 1,175 ± 109 | 32.3 ± 8.8 | 3.13 ± 0.42 |
| WWTP11 | Grab/comp | 9 | 7.60 ± 0.07 | 103.8 ± 30.9 | 1,458 ± 150 | 33.8 ± 4.9 | 2.61 ± 0.26 |
| WWTP12 | Grab/comp | 9 | 7.56 ± 0.06 | 119.3 ± 13.3 | 2,069 ± 801 | 35.1 ± 7.8 | 3.04 ± 0.33 |
| WWTP13 | Grab/comp | 8 | 7.39 ± 0.10 | 61.3 ± 10.1 | 1,686 ± 249 | 26.1 ± 6.5 | 2.40 ± 0.53 |
| WWTP14 | Grab/comp | 17 | 7.62 ± 0.04 | 102.8 ± 19.3 | 1,089 ± 117 | 37.8 ± 4.6 | 2.92 ± 0.43 |
a
Comp, 24-h composite sample. Values represent means ± standard error of the mean (SEM).