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Brewery BOD Sources

Brewery wastewater BOD ranges from 1,000-5,000 mg/L depending on production processes. Spent grain, yeast, and beer residues create high organic loading that requires specialised treatment.

Spent Grain

Residual grain from mashing contains high organic content and suspended solids.

Yeast & Trub

Spent yeast and trub from fermentation contribute significant BOD and solids.

Beer Residues

Spills, tank bottoms, and filter backwash contain concentrated beer with high BOD.

Variable Loading

Brewing cycles create significant variations in flow and organic loading.

Brewery Wastewater Treatment

Our brewery wastewater treatment systems combine solids separation, flow equalization, and advanced biological treatment to handle high BOD loading efficiently.

Solids Separation

Rotary drum screens and static screens remove spent grain and coarse solids before advanced biological treatment.

  • Removes particles >0.5mm
  • Reduces BOD by 20-30%
  • Grain recovery option
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Flow Equalization

Balancing tanks smooth out variations from brewing cycles, providing consistent loading to treatment.

  • 12-24 hour detention
  • pH blending capability
  • Reduces system size
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Biological Treatment

Extended aeration MBBR systems handle high BOD brewery wastewater with excellent efficiency.

  • 95%+ BOD removal
  • Handles shock loads
  • Low sludge production
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Brewery Wastewater Treatment Process

Screening

Remove spent grain and coarse solids to protect downstream equipment.

Flow Equalization

Balancing tank normalizes flow and loading variations from brewing cycles.

pH Adjustment

Neutralise acidic or alkaline wastewater to optimal range for advanced biological treatment.

DAF Clarification

Flotation removes yeast, fine solids, and remaining suspended organics.

Biological Treatment

Extended aeration MBBR degrades dissolved organics and reduces BOD by 95%+.

Secondary Clarification

Lamella clarifier separates biological sludge for recycling or disposal.

Treatment Performance

95-99%
BOD Removal
90-95%
TSS Removal
85-90%
Solids Capture
80-90%

Sludge Volume Reduction

Related Topics

Recommended Equipment

Solutions for Brewery & Beverage Wastewater

DAF Flotation Systems

Remove yeast, suspended solids, and organic matter with micro-bubble flotation technology. Achieves >90% solids removal with automated chemical dosing.

Rotary Drum Screens

Continuous screening of spent grains and hop debris with minimal maintenance. Gentle handling preserves grain structure for animal feed recovery.

Screw Presses

Dewater spent grains and organic sludge to 18-22% dry solids for reduced disposal requirements. Low-energy operation with automated wash cycles.

Polyelectrolyte Stations

Automated chemical dosing for flocculation and solids separation. Precise polymer preparation ensures optimal conditioning for DAF and dewatering.

Storage Tanks

Equalization and buffer tanks for handling variable brewery wastewater flows with pH stabilisation. Stainless steel with sanitary finishes.

Process Tanks

Neutralisation vessels and contact tanks for pH adjustment and treatment processes. Corrosion-resistant materials with mixing capabilities.

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Advanced Oxidation

Advanced oxidation processes for recalcitrant industrial organics.

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Brewery Anaerobic Digestion

Anaerobic digestion systems for breweries and distilleries.

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Brewery Aop Treatment

Advanced oxidation processes for refractory brewery organics.

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Brewery Biological Treatment

Anaerobic and aerobic advanced biological treatment for brewery wastewater.

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Brewery Cider Wine

Wastewater treatment for cideries and wineries.

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Brewery Contract

Wastewater treatment for contract and multi-brand brewing facilities.

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Aeration & Oxygen Transfer

Aeration accounts for 50–70 % of a biological plant’s electrical Operating expenditure — designing it well is the single largest lifetime saving.

Need help with high BOD brewery wastewater?

Our experts can design a system tailored to your specific requirements.

Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.