| S. No | Abbreviations | Names |
| 1 | O3 | ozone |
| 2 | COD | Chemical Oxygen Demand |
| 3 | LC-MS-MS | Chromatography-mass-spectrum-mass spectrum |
| 4 | YES | Yeast estrogen screen |
| 5 | WWTPs | waste water treatment plants |
| 6 | TPAD | two-phase anaerobic digestion |
| 7 | SBR | Sequencing Batch Reactor |
| 8 | MBR | Membrane Bioreactor |
| 9 | YMBR | yeast based membrane bioreactor |
| 10 | EPS | extracellular polymeric substances |
| 11 | CASS | Cyclic Activated Sludge System |
| 12 | ICEAS | Intermittent Cycle Extended Aeration |
| 13 | PAC | powdered activated carbon |
| 14 | HMBR | hybrid membrane bioreactor |
| 15 | AS-MBR | activated sludge coupled with MBR |
| 16 | BAC-MBR | biological granular activated carbon coupled with MBR |
| 17 | SMBR | submerged membrane bioreactor |
| 18 | EDCs | Endocrine disrupting compounds |
| 19 | BPA | Bisphenol A |
| 20 | CAS | conventional activated sludge |
| 21 | 5-TTri | 5-tolyltriazole |
| 22 | AST | activated sludge treatment |
| 23 | PhACs | pharmaceutically active compounds |
| 24 | PCPs | personal care products |
| 25 | FBBR | fixed-bed bioreactor |
| 26 | ABS | acrylonitrile-butadiene-styrene |
| 27 | ASMBR | aerated submerged membrane bioreactor |
| 28 | GEM | genetically engineered microorganism |
| 29 | SBR | sequencing batch reactor |
| 30 | OMW | olive mill wastewater |
| 31 | CF-MBR | crossflow membrane bioreactor |
| 32 | RO | reverse osmosis |
| 33 | HRT | hydraulic retention time |
| 34 | DAF | dissolved air flotation |
| 35 | VFA | volatile fatty acid |
| 36 | VSS | Volatile suspended solids |
| 37 | CASR | Conventional activated sludge reactor |
| 38 | HRT | Hydraulic retention time |
| 39 | EDCs | Endocrine disrupting chemicals |