Products
View some of our proven products from leading manufacturers, selected to deliver reliable solutions and supported across the UK.
SH Classic
A robust biological desulphurisation tower designed for high-efficiency H₂S removal in demanding biogas and gas treatment applications.
The SH Classic delivers reliable, low-maintenance performance even at high sulphide levels, protecting downstream equipment and supporting long-term plant operation.
The SH Classic is a proven biological desulphurisation tower designed for the removal of hydrogen sulphide (H₂S) from biogas, landfill gas and sewage gas applications.
Using a biological trickling filter process, the system enables highly effective and stable H₂S reduction, even in applications with very high sulphide concentrations. The design promotes reliable long-term operation, with a key advantage being that internal media blockage is effectively eliminated, ensuring consistent performance and reduced maintenance requirements.
Widely used across anaerobic digestion, wastewater and industrial gas treatment plants, the SH Classic provides a dependable solution for protecting downstream equipment such as CHP engines, upgrading systems and pipework from corrosion and damage.
Allison Engineering supports the specification, integration and ongoing support of SH Classic systems as part of complete biogas process solutions.
Key Features & Capabilities
- Proven biological trickling filter technology for H₂S removal
- High removal efficiency, typically achieving >98% H₂S reduction
- Designed for high to very high H₂S concentrations
- Non-blocking media design for long-term reliability
- Low maintenance requirements and stable operation
- Suitable for continuous industrial operation
- Modular and scalable designs to suit plant size and flow rates
- Compatible with biogas, landfill gas and sewage gas applications
Typical Applications
- Anaerobic digestion (AD) plants
- Biogas upgrading (gas-to-grid systems)
- CHP engine protection
- Landfill gas treatment
- Wastewater and sewage gas systems
- Industrial gas treatment and recycling
Over 45 Years in Operation
1000's of UK Installations
Supporting 100's of UK Sites
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Allison Engineering supports projects from early-stage selection through to supply, commissioning and long-term support. For customers, that means not just choosing a product, but getting the right solution for the application.
Specifications & Planning
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Supply & Commissioning
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Support & Optimisation
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