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A AER-USA produced Biogas Digester

BIOGAS

Top challenges we solve:

  • Poor mixing in digesters leading to dead zones, scum formation, or sludge buildup — lowering gas yield. 

  • Inefficient oxygen or gas injection for low-solid or problematic digesters, reducing methane production. 

  • High maintenance burden or equipment failure (cables, junction boxes, covers) in harsh digester environments. 

  • Inconsistent flow patterns or dead-spot zones leading to reduced microbial activity and process instability. 

  • Gas leaks, safety hazards (explosion, asphyxiation, gas poisoning) if digester operation or components are sub-par.

Standard toolkit for this application:

  • Mixer Rio — primary digester mixing to maintain homogeneous slurry and prevent stratification. AER-USA

  • Mixer Brio — alternative mixing configuration for different digester sizes or flow patterns. AER-USA

  • Cable Saver — protection for cables in wet or corrosive digester environments to ensure long-term durability. AER-USA

  • Digester Cover Pump — maintaining digester cover conditions and safe operation under changing weather.

  • AirLift Pro — cover pump to remove excess rainwater or condensate, protecting digester integrity. AER-USA

  • Float Switch — safeguards against overheating, electrical hazards, and costly equipment damage.

At AER-USA, we understand that maximizing biogas output depends on proper mixing, circulation, and gas-liquid contact within your digesters. Our equipment optimizes digester performance, reduces dead zones, and supports stable anaerobic processes — helping you get the most out of every batch.

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Enhancing Digester Efficiency & Stability

Our mixers and circulation systems ensure homogeneous slurry mixing and prevent stratification. That means more uniform microbial activity, fewer dead zones, and increased consistency in biogas production.

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Reliable Operation in Harsh Conditions

We build our systems to withstand the demanding, corrosive, and wet environment of digesters. Robust protection for cables and components, combined with powerful circulation, helps reduce maintenance and downtime — ensuring long-term performance.

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Optimal Gas Production & Safety

By improving mixing and gas-liquid contact, AER-USA solutions help optimize biogas yield while maintaining operational safety and stability. Proper circulation reduces risk of gas pockets or localized failures, supporting safer, more efficient digestion.

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Custom Designs for Every Digester

From small-scale digesters to large industrial systems, AER-USA engineers systems tailored to your digester size, slurry consistency, and biogas production goals — delivering a reliable, optimized solution.

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Let AER-USA help you get the maximum yield from your digester — with stable mixing, consistent performance, and reduced maintenance.

​Click here to see biogas accessories.

EQUIPMENT
  • Mixers
  • Trollies
  • Cover-mounted Frames
  • Cable Savers
  • C1D1 Junction Boxes
  • Milliamp Float Switches
  • Waterproof Junction Box
SERVICES
  • Pure O2 Injections
  • Equipment Installation
  • Service
  • Repair
  • Custom Mixed Flow Pattern Design
  • Circulation and oxygen injection equipment for Low Solid Digesters
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