Products / Biological

🦠 Biological Reactor System (SBR / MBR / MBBR)

Aerobic Biological Treatment for BOD, COD, Ammonia & Recalcitrant Organics

WFS biological reactors degrade BOD, COD, ammonia, sulfides, phenols, and soluble hydrocarbons using engineered microbial consortia. The same platform supports three reactor architectures: SBR (batch nitrification-denitrification in a single tank), MBR (mixed-liquor + submerged hollow-fiber UF membranes), and MBBR (moving plastic biofilm carriers in an aerated tank).

Each configuration is supplied with a fine-bubble diffused aeration grid, a turn-down blower package, a nutrient (N/P) dosing station as needed, alkalinity correction for nitrification, and SCADA-linked DO/ORP/MLSS instrumentation. Sludge management is sized for the design SRT — wasting to a thickener, dewatering centrifuge, or filter press.

Bioreactors are deployed in series with API/CPI or DAF clarification upstream and GAC / RO polishing downstream to achieve discharge-grade effluent.

Process Schematic

WFS-BIO-700

Reactor Configurations

Select a configuration to view reaction mechanism, advantages, and target contaminants.

Single-tank batch process cycling through fill, react (aerobic/anoxic), settle, decant, and idle phases. Excellent for variable flow and load — common on smaller installations and remote sites.

Reaction Mechanism

Time-staged nitrification (NH₃ → NO₃⁻) and denitrification (NO₃⁻ → N₂) in the same vessel by alternating aeration and anoxic mixing.

Advantages

· No external clarifier needed
· Handles load swings
· Simple footprint
· Excellent N removal

Target Contaminants

BOD/CODAmmoniaNitratePhenols

Full Specifications

Flow Range: 5–500 m³/hr
BOD Removal: >95%
Ammonia Removal: >98% (with nitrification)
Footprint: Up to 70% smaller (MBR vs CAS)
Aeration: Fine-bubble diffused, turn-down blower
MLSS: 3,000–12,000 mg/L (config dependent)
SRT: 10–30 days typical
DO Set Point: 1.5–3.0 mg/L (aerobic zones)
Carriers (MBBR): Polyethylene K1/K3/K5, 40–67% fill
Membranes (MBR): PVDF hollow fiber, 0.04 µm
Controls: PLC + DO/ORP/MLSS/NH₃ probes
Sludge Yield: 0.3–0.6 kg VSS / kg BOD removed

Configure your Biological Reactor System (SBR / MBR / MBBR)

Submit your water chemistry, flow rate, and site conditions — our engineers will return a sized configuration and process datasheet.

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