| AAS | Aerobic activated sludge |
| AGS | anaerobic granular sludge |
| AAS | Anaerobic activated sludge |
| ADWWTPS | Aerobically digested WWTP sludge |
| ADDWWTP | Anaerobically digested and dewatered sludge |
| AGCWS | Aerobic granular sludge from cosmetic factory |
| ASB | Activated sludge biomass |
| AS (50%) MR | Activated sludge (50%) immobilized in Mowital® B30H resin |
| ASS | Activated Sludge System |
| AWWTPS | Anaerobic wastewater treatment plant sludge |
| CFS | Cosmetic factory sludge |
| DAEDS | Dewatered aerobically digested sludge |
| DASS | Dried aerobic sewage sludge |
| DMADS | Dewatered anaerobically digested sludge |
| DSBS | Dewatered secondary biological sludge |
| MDSS | Mechanical dewatered sewage sludge |
| DUSS | Dewatered undigested sewage sludge |
| DRAWS | Dewatered raw sludge |
| FIS | Fertilizer industry sludge |
| GAC | Granular activated carbon(s) |
| LS | Limed sludge |
| LCA | Life cycle assessment |
| PC | Phenolic compounds |
| POES | Palm oil effluent sludge |
| SBET | Adsorbent specific surface area measured using Brunauer Emmett Teller (BET) method |
| SBAC | Sludge based activated carbon |
| SSTP | sewage sludge from sludge treatment plant |
| VLS | Viscous liquid sludge |
| WBS | Waste biological sludge |
| WWTP | Wastewater treatment plant |
| WWTPS | Wastewater treatment plant sludge |