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Brewery Solids Management

Spent yeast, grain, and hops create high solids loading in brewery wastewater. These materials can clog equipment, increase sludge production, and interfere with advanced biological treatment if not properly separated.

Spent Grain

Residual malt grain from mashing operations contains high fibre and organic content.

Spent Yeast

Yeast from fermentation tanks contributes significant BOD and suspended solids.

Hop Residues

Hop particles from brewing and dry-hopping operations add to solids loading.

Trub & Sediment

Protein and hop sediment from whirlpool and fermentation create fine solids.

Screening & Separation

Our rotary drum screens and static screens effectively capture grain and hop particles. Yeast can be recovered through centrifugation or DAF flotation for animal feed or nutrient recovery applications.

Rotary Drum Screens

Heavy-duty rotary drum screens capture grain, hops, and coarse solids with continuous cleaning.

  • Mesh sizes 0.5-6mm
  • Continuous brush cleaning
  • Grain recovery option
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DAF Flotation

Dissolved Air Flotation captures fine yeast and suspended solids through micro-bubble attachment.

  • Yeast recovery option
  • 85-95% solids capture
  • Compact footprint
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Screw Press Dewatering

Screw presses dewater captured solids, reducing volume for disposal or animal feed.

  • 20-30% cake solids
  • Continuous operation
  • Low energy consumption
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Solids Separation Process

Coarse Screening

Initial screening removes large grain and hop particles (>6mm).

Fine Screening

Rotary drum screen with 1-3mm mesh captures smaller grain and hop fragments.

Flow Equalization

Balancing tank smooths variations and allows solids settling.

DAF Flotation

Flotation captures yeast and fine suspended solids.

Dewatering

Screw press reduces moisture content for disposal or animal feed.

Recovery/Disposal

Dewatered solids are used for animal feed, composting, or disposal.

Value Recovery

Spent grain and yeast have value as animal feed or compost materials. Recovery reduces waste disposal requirements while generating output or supporting sustainability initiatives.

90-95%
Solids Capture
20-30%
Cake Solids
-80
Output per Tonne
1-2 Years
Project Benefits Period

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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Need help with yeast & grain solids separation?

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Industries We Serve

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