Rotating Biological Reactor
- ROTATING BIOLOGICAL CONTACTOR (RBC) SYSTEMS
A Rotating Biological Contactor (RBC) is an advanced fixed-film wastewater treatment technology widely used in sewage and industrial effluent treatment. The process is based on attached-growth microorganisms, where a series of closely spaced discs rotate partially submerged in wastewater. As the discs rotate, microorganisms grow on their surface, effectively breaking down organic matter and reducing pollutants.
- How It Works
- Biological Growth – Microorganisms form a biofilm on rotating discs.
- Oxygen Transfer – Continuous rotation exposes the biofilm alternately to wastewater and air, ensuring oxygen supply for aerobic digestion.
- Treatment Process – Organic pollutants are oxidized, nutrients reduced, and pathogens minimized, resulting in clarified, treated water.
- Salila Envirotech RBC Solutions
- High treatment efficiency
- Compact, modular design
- Low energy consumption
- Long-term reliability with minimal maintenance
- Applications :
- Residential communities & housing complexes
- Hotels, resorts, hospitals & institutions
- Food & beverage industries
- Small & medium industrial effluents
- Remote locations and decentralized wastewater treatment
- Advantages of RBC Technology
- Energy-efficient process (no high power blowers needed)
- Simple to operate and maintain
- Compact and modular – ideal for space-limited areas
- High tolerance to shock loads
- Produces high-quality treated water suitable for reuse
- Long service life with robust construction
- Design & Specifications
- Material of Construction – FRP, PP-FRP, RCC or MSEP with protective coatings
- Capacities – From 10 KLD to several MLD depending on requirement
- Process Stages – Multi-stage RBC units for enhanced treatment efficiency
- Control System – MCC/PLC panels with automation options
- Disinfection – UV / Ozone / Chlorination for final polishing
- Service & Support
- Complete design, supply & installation
- Pilot-scale studies before implementation
- Operation & maintenance training
- Dedicated after-sales service team
- Comparison: RBC vs. Conventional Activated Sludge
| Parameter | RBC Technology | Conventional ASP |
|---|---|---|
| Energy Requirement | Very low, only for disc rotation motor | High, due to blowers & aeration |
| Operation | Simple, less manpower required | Skilled operation needed |
| Space Requirement | Compact modular design | Large aeration tanks required |
| Sludge Production | Low excess sludge generation | Higher sludge volume |
| Maintenance | Minimal, fewer mechanical parts | Frequent monitoring & control needed |
