Table 2.
Performance of six physical-chemical batch experiments towards meeting Greywater design treatment goals using a simplified Greywater composition (300 Mg L− 1 SDS and 58.5 Mg L− 1 ammonium bicarbonate)
| Technology Approach | Chemical / Energy Input |
COD Removal (%) | kWh (Treated 450 L day− 1) |
Water Recovery Potential | Potential to Meet Treatment Standards |
|---|---|---|---|---|---|
| Coagulation | 0-500 mg L− 1 FeCl3 | 77 | < 0.1 | Medium | Low |
| Adsorption | 0–5 g L− 1 PAC | 99 | < 0.1 | High | Medium |
| Photocatalysis |
5 g L− 1 TiO2; 7.2 J cm− 2 |
9 | 552 | High | Low |
| Electrocatalysis |
Dual BDD 36 mA cm− 2 |
67 | 57 | High | Medium |
| Ceramic UF Separation |
UF/20-nm at 2.1 bar |
6 | 14 | Medium | Low |
| Foam Fractionation | Air at 0.5 L min− 1 | 82 | 3 | Medium/High | High |