Rotating Biological Contactor (RBC) is a biofilm wastewater treatment technology, founded in the 1960s by the former Federal Republic of Germany.
Product Introduction
Basic process flow of urban sewage biological rotary table treatment system
High concentration organic wastewater can be treated using the process shown in Figure 2, which can reduce the BOD value from thousands of mg/L to 20mg/L
1.The sewage first flows into the first sedimentation tank (PST) to achieve pre sedimentation of some suspended solids. Accumulated sludge should be regularly removed;
2.After pre precipitation, the sewage flows into the first biological zone of the biological rotary table area and is degraded by microorganisms attached to the RBC membrane Partial BOD in water. The solid returns to the first sedimentation tank (PST) through the bottom groove; The treated sewage is transported to the second biological zone through a water extraction device for advanced treatment.
3.After being treated in the biological reaction zone, the effluent is precipitated and clarified in the final settling zone (FST) before being discharged
Application Field
1. Municipal Wastewater Treatment
- Ideal for small to medium-sized communities (capacity <10,000 m³/day).
- Removes 85-90% BOD₅ and 70-80% ammonia with 30% less energy than sludge.
- Compact footprint, low maintenance.
2. Food & Beverage Industry Wastewater
- Handles high organic loads (e.g., dairy, brewery effluents).
- COD removal: 75-90% | Fats/oils removal: 60%+.
- Resists shock loads without sludge bulking.
3. Pharmaceutical & Chemical Wastewater
- Degrades complex organics (e.g., APIs, solvents).
- Toxic compound tolerance: Biofilm protects microbes from inhibitory substances.
- Low sludge production vs. conventional methods.
4. Decentralized/Rural Wastewater Systems
- No need for skilled operators – plug-and-play for villages/resorts.
- Solar-powered RBC units available for off-grid areas.
- Effluent reuse possible for irrigation (after disinfection).
Technical Parameter
| Capacity | 1500-1800m³/D |
| Application | Suitable for the treatment of large municipal wastewater and low concentration industrial wastewater |
| Size(mm) | 2000*4230 |
| Contact Body Size(mm) | 2000*50 |
| Number of Contact Bodies(Discs) | 30 |
| Contact Surface Area(㎡) | 750 |
| Equipment Weight(T) | 2.8 |
| Operating Weight(T) | 8.3 |
