Table 1.
Details of the sampling location sites along with treatment characteristics of WWTPs located in Jaipur, Rajasthan
| Site No | Sampling location | Type of secondary treatment technology | Type of tertiary treatment | Dosage & contact time of tertiary treatment | Design capacity (MLD) |
Flow rate (avg. MLD) | Number of connected residents (approx.) |
|---|---|---|---|---|---|---|---|
| Site 1 |
Brahmpuri, Jaipur 26.9373° N, 75.8250° E |
SBR | No treatment | NA | 27 MLD | ~ 8 | >59,000 |
| Site 2 |
Central Park Garden, Jaipur 26.9048° N, 75.8073° E |
SBR | Cl2 (bleach powder) | 4 ppm by dropping system | 1 MLD | ~ 1 | >7000 |
| Site 3 |
Ramniwas Garden, Jaipur 26.8963° N, 75.8100° E |
MBBR | UV | NA | 1 MLD | ~ 1 | >7000 |
| Site 4 |
MNIT, Jaipur 26.8640° N, 75.8108° E |
MBBR | Cl2 (hypochlorite) | 2.5–3 ppm, 30 min | 1 MLD | ~ 1 | >2000 |
| Site 5 |
Jawahar Circle Garden, Jaipur 26° 50′ 29″ N, 75° 48′ 0″ E |
MBBR | UV | NA | 1 MLD | ~ 1 | >7000 |
| Site 6 |
Dravyavati River, Jaipur 26.7980° N, 75.8039° E |
SBR |
Cl2 (Hypochlorite) |
3–5 ppm, 30 min | 65 MLD | ~ 65 | >480,000 |
| Site 7 |
Dhelawas, Jaipur 27.3735° N, 75.8926° E |
ASP | No treatment | 3 ppm, 30 min | 65 MLD | ~ 62.5 | >480,000 |
| Site 8 |
Paldi Meena, Jaipur 26.8759° N, 75.8945° E |
SBR | No treatment | NA | 3 MLD | 0.6–0.7 | ~ 5000 |
| Site 9 |
Ralawata, Jaipur 26.76873° N, 75.93092° E |
ASP | Cl2 (hypochlorite) | 10 kg per hour | 30 MLD | 20–22 | ~ 170,370 |
MNIT Malaviya National Institute of Technology, MBBR moving bed biofilm reactor, SBR sequencing batch reactor, ASP activated sludge process, Cl2 chlorine disinfection, UV ultraviolet disinfection, MLD million liters per day, NA not applicable