Carbon Filters

ERG offers a comprehensive range of carbon filters used as standalone filters or polishing a bio-trickling filter or chemical scrubber discharge. All our dry media filters require no operator intervention and provide guaranteed odour control performance.

Designed and built to BS4994 or BS EN 13121 and fully compliant with WIMES 8.05, our carbon filter systems offer assured performance, guaranteed discharge concentrations and competitive costing.

Key benefits of ERG’s range of carbon filters

High removal efficiency of H₂S and other odours
Outlet H₂S concentrations <5-10 ppb
VOC polish to <200 ou_E/m³
Filters to treat 200 to 200,000 m³/hr
Low pressure drop <500 Pa
Bed life designed to suit requirements
Low capital cost
Supplied in PVC/GRP or coated steel

Carbon media available through our framework media suppliers

Alkali impregnated carbon

Pelletised for low pressure drop, up to 25-40%w/w take-up of H₂S, good mercaptans removal

Activated carbon

Pelletised or granular, for VOC removal

Special applications

Alternative grades available for unusual duties

Other impregnated media

Oxidising media for VOC odour polishing.

Performance and System Arrangement

ERG has successfully installed over 150 carbon filters in the UK. Performance exceeds 99% H₂S and VOC removal efficiency and an odour discharge of <1,000 ou_E/m³ is guaranteed for most applications.

All our systems are custom-designed for the odour control duty required, and include installation of:

Vessel and carbon media, with optional access structure (for walk-on, annular vessels)
Mist eliminator and/or in-duct air heater for moisture conditioning
Air extraction fans and ductwork
Electrical control panel
Integrated system design with upstream bio-trickling filters or chemical scrubbers

Three filter standard configurations are offered: Deep Bed, Dual Deep Bed and Annular. Bespoke designs are available for special projects.