Table 3 Water physicochemical and microbiological properties before and after the bioprocess
Before treatment | After treatment | % remediation | Reference valuea | |||
|---|---|---|---|---|---|---|
UcS | CfS | UcS | CfS | |||
pH | 7.5 | 7.75 | 7.5 | 6–9 | ||
Turbidity (NTU) | 110 | 44.5 | 40 | |||
Nitrites (mg/L) | 1.1 | 0.03 | 0.05 | 97.3 | 95.5 | 10 |
Ammoniacal nitrogen (mg/L) | 11 | 0.099 | 0.2 | 99.1 | 98.2 | 1.5 |
Nitrates (mg/L) | 16 | 10.5 | 0.9 | 34.4 | 94.4 | < 10 |
Lead (µg/L) | 14 | ND | 10 | 100 | 28.6 | 50 |
Total phosphorus (µg/L) | 390 | 0.95 | 24 | 99.8 | 93.8 | 100 |
Denitrification rate | 1095 | 2692 | ||||
Aerobic mesophyll bacteria (CFU/L) | 4,732,000 | 33,000 | 730,000 | 99 | 84 | 1,000,000 |
Total coliforms (CFU/100 mL) | 1,141,000 | 20 | 360,000 | 99 | 68 | 1000 |