Internal Desulphurisation
For reliable in-situ hydrogen sulphide management, FerroSorp® DG from Zorbia is the premier choice. Engineered for superior internal desulphurisation performance, it integrates seamlessly into existing processes to enhance safety, stability, and gas quality.
Targeted Hydrogen Sulphide Control – Right at the Source
FerroSorp® DG is a specially formulated powder-based reactant designed to bind hydrogen sulphide (H₂S) directly in the fermentation substrate of biogas plants. Developed using high-quality iron hydroxide, FerroSorp® DG prevents the formation of H₂S during anaerobic fermentation, thereby improving gas quality, plant performance, and operational safety.
WHY CHOOSE FERROSORP® DG?
Hydrogen sulphide is a well-known inhibitor of methanogenesis, interfering with biogas yields and corroding key infrastructure. FerroSorp® DG acts early in the process, offering upstream H₂S control that avoids many of the issues associated with downstream treatments alone.
Key Benefits
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Reduces H₂S formation during fermentation
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Supports methanogenesis by avoiding sulphide inhibition
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Reduces corrosion of concrete and metallic components
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Improves trace element availability in the fermenter
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No salting of the medium (unlike iron chlorides)
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Preserves sulphur for use in digestate as fertiliser
Application Areas
FerroSorp® DG is ideal for a wide range of plant types:
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Agricultural biogas facilities
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Waste digestion plants
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Co-fermentation systems
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Biomethane production plants
How to Use FerroSorp® DG
The product is simply added to the fermentation substrate, typically via the solids dispenser. It can be used:
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As a standalone desulfurization solution, or
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In conjunction with downstream methods such as biological air desulfurization, activated carbon, or FerroSorp® S
Product Variants
Our technical specialists select from five optimised formulations based on your operating conditions:
FerroSorp® DGµ25
FerroSorp® DG+
FerroSorp® DGp
FerroSorp® DGm
FerroSorp® DGt10-K
Packaging Options
Available in multiple formats to suit plant size and storage capacity:
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Fermentable sacks (5 – 20 kg)
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Big bags (350 – 1,000 kg)
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Bulk goods (up to 24 tonnes)
Note: Packaging may vary depending on the product specification and manufacturing batch.
Find the Right Solution
With six different FerroSorp® DG formulations available, our engineering team can recommend the most effective desulfurization concept tailored to your plant’s unique requirements.
Contact Zorbia today to discuss how FerroSorp® DG can support your biogas performance, reduce maintenance costs, and ensure a more sustainable outcome for your operation.
Get in Touch
If you’re looking to take control of hydrogen sulphide right at the source, our internal desulphurisation solution offers a smarter, more reliable way forward. Built for demanding gas streams and engineered to deliver consistent, long-term performance, they help operators reduce corrosion, protect equipment, and improve overall plant efficiency. If you’d like to explore how internal desulphurisation could work for your operation, we’d be glad to talk—reach out to us anytime.