Biological H2S Scrubber Package Designed to CE Requirements for a Wastewater Project in Zambia
Biological biogas scrubbing designed in line with CE requirements, with outlet H₂S below 200 ppm, engineered for export deployment.
CRA was awarded the design, engineering, manufacturing, inspection, supply, and commissioning of a complete biological biogas scrubbing system for VA Tech Wabag Ltd. as part of an export wastewater treatment project in Zambia. The system was designed in line with CE requirements for international safety, design and operational practice. Delivered as a fully integrated package of scrubber, blowers, instrumentation, piping and controls, the scope ran from engineering design through to commissioning, with technical submittals aligned to both client and export requirements.
Meeting International Design Requirements for an Export Biogas Treatment Project
VA Tech Wabag required a biological biogas scrubbing system that could be engineered and deployed for a wastewater treatment facility in Zambia, a project where CE marking requirements applied across the scope. The system needed to meet a defined outlet H₂S target of below 200 ppm while satisfying the documentation demands of an international export project and being commissioned reliably in a remote deployment context.
- Design, fabrication and documentation in line with CE marking requirements
- Outlet H₂S below 200 ppm in continuous biogas service
- Engineering documentation for export regulatory sign-off
- Reliable commissioning in a remote international deployment
- Integration of scrubber, blowers, instrumentation, and controls into a single skid package
A Fully Integrated Biological Scrubbing Package Designed to CE Requirements
CRA engineered, supplied, and commissioned a complete biological biogas scrubber system purpose-built to CE marking requirements, a sub-200 ppm H₂S outlet specification, and the operational demands of the Zambia wastewater treatment project.
Core system delivered
- Biological scrubber unit with optimised gas-liquid contact design for consistent H₂S removal
- Blowers package for controlled biogas flow through the scrubbing system
- Instrumentation and control systems for continuous, automated operation
- Interconnecting piping designed and fabricated in line with CE requirements
- Integrated package skid for streamlined installation and commissioning
Engineering and documentation scope
- Mechanical and electrical design deliverables to CE marking requirements
- Inspection documentation and quality records
- Technical submittals aligned with client and export requirements
System Designed to CE Requirements and Commissioned for Export Service
- Outlet H₂S consistently below the 200 ppm target specification
- Complete biological scrubbing package engineered and commissioned in line with CE requirements
- Technical documentation package delivered for client and regulatory sign-off
- Integrated design reduced site installation complexity and coordination scope
- System operating continuously for biogas cleaning and conditioning at the Zambia facility
Engineering Depth for International Projects
This project demonstrates CRA's capability to deliver purpose-engineered biogas treatment systems designed to international requirements for export deployments. By combining in-house design engineering, manufacturing in line with CE requirements, and end-to-end commissioning, CRA provided VA Tech Wabag with a fully integrated, globally deployable biological scrubbing package meeting both the technical specification and the documentation requirements of an international project.
The project supports CRA's position as a supplier to international contractors requiring engineering depth and on-site delivery in biogas treatment systems.
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