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Brewery pH Variations

Brewery wastewater pH ranges from 3-4 (fermentation, acid CIP) to 11-13 (caustic CIP). These extremes must be neutralised before advanced biological treatment to protect microbial populations.

Acid CIP Wastewater

Nitric and phosphoric acid cleaning cycles generate wastewater with pH as low as 2-3.

Caustic CIP Wastewater

Sodium hydroxide cleaning cycles produce wastewater with pH up to 12-13.

Fermentation Wastewater

Spent yeast and beer residues contribute acidity with pH typically 3-5.

Biological Impact

Extreme pH can kill beneficial bacteria in advanced biological treatment systems.

pH Neutralisation

Automated pH adjustment systems with acid and caustic dosing neutralise brewery wastewater to the optimal pH range for advanced biological treatment. Flow equalization helps manage pH fluctuations.

Flow Equalization

Balancing tanks blend acidic and alkaline streams, reducing pH variation before neutralisation.

  • 12-24 hour detention
  • Natural pH blending
  • Reduced chemical usage
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Automated Neutralisation

pH control systems automatically dose acid or caustic to maintain optimal pH for treatment.

  • Real-time pH monitoring
  • Automated dosing control
  • Alarm notifications
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SCADA Integration

Advanced control systems provide remote monitoring, data logging, and automated reporting.

  • Remote monitoring
  • Trend analysis
  • Compliance reporting
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pH Neutralisation Process

Collection

CIP and process wastewater is collected from various brewery operations.

Flow Equalization

Balancing tank blends acidic and alkaline streams to reduce pH variation.

pH Monitoring

Online pH probes continuously monitor wastewater pH in real-time.

Chemical Dosing

Acid or caustic is automatically dosed to achieve target pH range.

Mixing

Static or mechanical mixers ensure thorough chemical dispersion.

Verification

Final pH monitoring confirms neutralisation before advanced biological treatment.

Monitoring & Control

Online pH monitoring with automated dosing control ensures consistent neutralisation. Alarms alert operators to out-of-specification conditions, protecting downstream treatment processes.

6.5-8.5
Target pH Range
±0.2
pH Control Accuracy
24/7
Continuous Monitoring
30-50%
chemical 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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Brewery Aop Treatment

Advanced oxidation processes for refractory brewery organics.

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Anaerobic and aerobic advanced biological treatment for brewery wastewater.

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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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Neutralisation Tanks

pH adjustment vessels for brewery wastewater with automated acid/alkali dosing.

View Neutralisation Tanks

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