AnoxyWall™
Advanced Anaerobic Membrane Bioreactor Technology
ANAEROBIC MBR
High-Rate Anaerobic Treatment for Extreme COD & High-Solids Industrial Effluents
AnoxyWall™ is our proprietary high-performance anaerobic membrane bioreactor technology, developed for the treatment of extremely high-strength industrial wastewater, slurries, and organic waste streams that exceed the practical limits of conventional biological treatment systems.
The technology combines the advantages of flocculent anaerobic sludge digestion with advanced membrane separation, bringing together two powerful treatment principles within one integrated biological process.
Inside the AnoxyWall™ reactor, a highly concentrated anaerobic biomass converts biodegradable organic matter under oxygen-free conditions, while the membrane system acts as the final solids-separation barrier. This enables the active biomass, suspended solids, and particulate organic matter to remain within the biological system while treated liquid is continuously separated as permeate.
This unique configuration allows AnoxyWall™ to handle wastewater with exceptionally high organic and solids concentrations, including influent COD exceeding 200,000 mg/L and TSS concentrations exceeding 50,000 mg/L, depending on the specific wastewater characteristics and project design.
Under suitable operating conditions, AnoxyWall™ can achieve COD removal efficiencies of up to 99%, making it one of our most intensive biological treatment technologies for difficult industrial wastewater.
The technology is particularly suitable for applications where wastewater cannot be treated as a conventional liquid stream alone, including mixtures of wastewater, sludge, slurry, and organic production residues.
WHY ANOXYWALL™
Key Features & Benefits
Concentrated flocculent anaerobic biomass behind a membrane barrier – built for the effluents nothing else can handle.
Proprietary Anaerobic Membrane Technology
Combines anaerobic biological treatment using flocculent sludge with membrane-based solids separation within an integrated reactor system.
Up to 99% COD Removal
Capable of achieving exceptionally high organic-load reduction under suitable feed and operating conditions.
Extreme COD Handling Capability
Designed for very high-strength industrial wastewater, including applications with influent COD concentrations reaching and exceeding 200,000 mg/L.
Exceptional TSS Handling
Suitable for wastewater and slurry streams containing very high suspended-solids concentrations, including applications exceeding 50,000 mg/L TSS.
Flocculent Anaerobic Biomass
Utilizes highly active suspended anaerobic biomass rather than relying solely on granular-sludge formation, expanding the range of wastewater and waste streams that can be treated.
Membrane Solids Separation
The membrane barrier retains active biomass and suspended solids inside the biological process while allowing treated liquid to be withdrawn as permeate.
High Biomass Retention
Membrane separation prevents valuable anaerobic microorganisms from being washed out of the reactor, enabling a high biological inventory and long effective solids retention time.
Independent Biomass Retention
Biological solids retention is largely separated from the hydraulic flow through the system, providing greater control over the anaerobic treatment process.
Treatment of Wastewater & Slurries
Unlike many conventional biological systems, AnoxyWall™ can treat mixtures containing significant concentrations of suspended and particulate organic material.
Organic Waste Co-Treatment
Selected organic factory residues can be introduced together with wastewater where their characteristics are suitable for anaerobic biological conversion.
High Organic Loading Capability
The concentrated biomass inventory allows the reactor to process very high organic loads within a comparatively compact biological treatment system.
Enhanced Conversion of Particulate Organics
Retention of suspended and particulate organic material provides additional time for hydrolysis and anaerobic biological degradation.
No Dependence on Conventional Sludge Settling
Final biomass separation is achieved using the membrane barrier rather than conventional gravity clarification, eliminating reliance on sludge settleability.
Reduced Biomass Washout
Even under challenging hydraulic conditions, microorganisms remain retained within the biological system.
High-Quality Solids Separation
Membrane filtration provides reliable separation between the anaerobic biomass and treated liquid, resulting in a permeate substantially reduced in suspended solids.
Compact Treatment Concept
High biomass retention and intensive biological conversion allow significant organic treatment capacity within a relatively compact footprint.
Reduced Excess Biological Sludge
Anaerobic metabolism generally produces significantly less excess biological sludge compared with conventional aerobic biological treatment.
Lower Aeration Energy Demand
Because the primary biological process operates anaerobically, the reactor does not require the intensive process aeration associated with conventional aerobic treatment systems.
Potential Energy Recovery
Anaerobic conversion of biodegradable organic matter generates biogas containing methane, which can potentially be collected and utilized as a renewable energy source depending on project scale and gas quality.
Designed for Difficult Industrial Waste
Particularly suited to wastewater streams containing a combination of dissolved COD, suspended solids, slurries, and biodegradable production residues.
Flexible Feed Management
The process can be engineered to accommodate variable mixtures of liquid wastewater and pumpable organic residues according to their biodegradability and physical characteristics.
Fully Automated Operation
PLC/SCADA-based controls can manage membrane operation, reactor conditions, feed rates, recirculation, cleaning sequences, instrumentation, alarms, and overall process performance.
HOW IT WORKS
Typical AnoxyWall™ Process
- 1High-Strength Wastewater / Organic Slurry / Factory Organic Residues
- 2Feed Conditioning & Equalization
- 3AnoxyWall™ Anaerobic Biological Reactor
- 4Anaerobic Conversion of Organic Matter
- 5Membrane Biomass & Solids Separation
- 6Treated Permeate
- 7Downstream Polishing / Reuse / Discharge, as Required
Within the reactor
- 1Organic Matter
- 2Hydrolysis & Anaerobic Biological Conversion
- 3COD Reduction + Biogas Generation
while
- 1Biomass + Suspended Solids
- 2Retained by Membrane Barrier
- 3Returned / Maintained Within the Biological System
This combination allows AnoxyWall™ to maintain an exceptionally high biological inventory while preventing loss of solids with the treated effluent.
WHAT IT CAN TAKE
Suitable Feed Streams
AnoxyWall™ can be engineered for challenging mixtures containing:
- Extremely high-COD industrial wastewater
- High-TSS wastewater
- Organic slurries
- Wastewater and sludge mixtures
- Flotation sludge
- DAF sludge containing biodegradable organics
- Food-production residues
- Chocolate and confectionery production scrap
- Liquid and semi-liquid organic factory residues
- Process wastewater containing suspended biodegradable solids
- Highly concentrated biodegradable industrial effluent
- Organic production waste suitable for anaerobic co-treatment
WHERE IT IS USED
Applications
- Food and beverage industries
- Chocolate and confectionery manufacturing
- Dairy-processing facilities
- Starch and sugar industries
- Breweries and distilleries
- Food-processing factories
- Industrial facilities generating flotation sludge
- High-strength agro-industrial wastewater
- Organic industrial waste treatment
- Wastewater and slurry co-treatment
- Industrial effluents with exceptionally high COD
- Industrial wastewater with exceptionally high suspended solids
- Facilities seeking intensive anaerobic COD reduction
- Industries requiring treatment of liquid wastewater together with biodegradable organic production residues
Anaerobic Treatment Beyond Conventional Limits.
AnoxyWall™ pushes anaerobic treatment beyond the limits of conventional biological systems by combining highly concentrated flocculent anaerobic biomass with membrane separation – enabling treatment of extreme COD, very high suspended solids, slurries, and organic industrial residues while achieving COD removal efficiencies of up to 99% under suitable operating conditions.
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