ERG (Air Pollution Control) Ltd

- Dry Media Filters

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In partnership with our carbon and dry media framework suppliers, ERG offers a comprehensive range of activated carbon, impregnated carbon, oxidising alumina media, and hybrid, multi-media filters. For the Middle East market we also offer in situ water and chemically regenerable carbon.

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Our dry media filter may be used as a stand-alone filter for polishing a chemical scrubber discharge or as part of a DryCat system. All our dry media filters require no operator intervention and provide guaranteed odour control performance.

A wealth of experience

ERG has treated air flowrates of less than 50m3/hr up to more than 80,000 m3/hr with a single vessel, and has a variety of configurations to offer, including deep bed, dual deep bed, annular and modular section vessels. So when it comes to carbon filters and dry media filters, we've got it covered! 

Striving to meet our clients' requirements

Working to suit our client's requirements, ERG optimises each dry media filter design based on the required outlet emission, the specified bed life between media changes, the space available, the air flowrate, and the capital cost. And with more than 100 dry media filters installed and performing successfully since 1998, each filter system is backed by the confidence of ERG's extensive experience.

Each of our dry media and carbon filters is tailored to treat the contaminant odours. We can offer systems to treat H2S, mercaptans, organic sulphides, ammonia, amines, and VOCs in any combination, and can also provide a guarantee of outlet odour concentration in ouE/m3.

Designed and built to BS4994 and fully compliant with WIMES 8.05, ERG's dry media and carbon filters offer assured performance at a competitive price.

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We offer a comprehensive range of activated carbon, impregnated carbon, oxidising alumina media, and hybrid, multi-media filters. For the Middle East market we also offer in situ water and chemically regenerable carbon.

An ERG dry media filter may be used as a standalone filter for polishing a chemical scrubber discharge or as part of a DryCat system. All our dry media filters require no operator intervention and provide guaranteed odour control performance.

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

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Alkali impregnated carbon

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

Acid impregnated carbon

Pelletised or granular, up to 8%w/w take-up of ammonia

Activated carbon

Pelletised or granular, for VOC removal

Water regenerable carbon

Pelletised, up to 20% w/w take-up of H2S, regenerable using water for up to 8 cycles. Operational cost savings

Special applications

Alternative grades available for unusual duties

Other impregnated media

Oxidising media for VOC odour polishing

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  • Deep bed filters
  • Annular filters
  • Purpose made filters
  • Containerised filters
  • Dual deep bed filters
  • Air valve vent filters

Deep bed filters

  • ideal for low gas flows 200-2,000m3/hr
  • can be passive or forced ventilation
  • widely used for local tank ventilation
  • single or dual media
  • suitable for water regenerable carbon

Annular filters

  • ideal for medium gas flows 2,000-40,000m3/hr
  • suitable for use as a polishing filter
  • very compact design with small pressure drop
  • single or dual media

Dual deep bed

  • ideal for medium gas flows 2,000-40,000m3/hr
  • suitable for use as a polishing filter or for bulk removal
  • very compact design with small pressure drop
  • single or dual media
  • suitable for water regenerable carbon

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