Case Study
Oxygen Injection
for Anaerobic Digestion
Optimizing H₂S Removal in Anaerobic Digestion Systems
Proven Performance, Lower Costs
Controlled oxygen injection helped this RNG facility reduce H₂S formation, improve sulfur removal performance, lower operating costs, and maintain pipeline-compliant O₂ levels.
Key Outcomes:
- Reduced H₂S generation through microaeration
- Achieved sulfur loadings exceeding 100% using DARCO BG1®
- Maintained product gas O₂ well below 0.2% pipeline limits
- Avoided an estimated $700K–$870K in annual operating costs
