Odour Control

  • An Introduction to Biofiltration
  • Odour Control by Photoionisation
  • Odour Control by Corona Discharge

An Introduction to Biofiltration

Biofiltration

An Introduction to BiofiltrationBiofiltration – an air pollution control technology.
A packed bed of particles - microorganisms immobilized on top of the support medium.
Contaminated air stream - humidified and passed through the bed.
Pollutants neutralized include ammonia, amines, H2S, reduced sulphur compounds (RSC), and/or VOCs.
Minimal energy or raw materials required.
Minimal waste production.

Biofiltration - an accepted and mature technique for air pollution control

Exponentially increasing biofilter installations.
Being used in a variety of applications:

  • Wastewater treatment plants,
  • Food processing plants,
  • Composting and organics processing facilities,
  • Rendering plants,
  • Fertilizer plants and
  • Pulp and paper industries.

For odour control, sewage air treatment, ATAD off gas treatment and VOC emission control.

Applications:

  • Lower operating cost
  • Low capital cost
  • Low pressure drop
  • Truly GREEN process
  • Simple and virtually maintenance free
  • Filter life of at least 4 years
  • Virtually no wastewater treatment odours that cannot be handled
  • Safe and reliable operation

Odour Control by PhotoionisationOdour Control by Photoionisation

  • an exciting “new” technology in odour control.
  • new to North America
  • successfully used for over 10 years
  • based on the application of UV light and a catalyst.
  • mimics natural reactions that take place in the upper atmosphere
  • interaction of air and UV light from the sun.

Principles:

  • Odourous air exposed to intense UV light.
  • UV creates free radicals, (O- 2, OH-, O3, etc.)
  • Immediate oxidation of the odour-causing compounds begins.
  • Then air passes to a catalyst. - remaining odourous compounds are adsorbed.
  • Broken down by the constant flow of free radicals in the air from the UV section.
  • Catalyst acts as both a catalyst and “buffer”.

Advantages: 

  • SMALL FOOTPRINT CAN HANDLE HIGH CONCENTRATIONS – 100’s of ppm of H2S
  • HANDLES SPIKES EASILY
  • WIDE TEMPERATURE RANGE (-30 TO 70 deg C)
  • LOW MAINTENANCE (0.5 days per year)
  • NO WATER OR CHEMICALS
  • STABLE AND ROBUST
  • ON or OFF – IMMEDIATELY STARTS WORKING
  • LOW ENERGY

300 CFM PILOT PLANT AVAILABLE

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Ambio-Photoionisation Ambio-Photoionisation (531 KB)

 

Odour Control by Corona Discharge

  • Odour Control by Corona DischargeTreats odourous air within a room or space.
  • Air is re-circulated.
  • Long track record - indoor air controlling yeasts, moulds, and odours.

Operation:

  • Air drawn into the unit and passes over a low-voltage corona discharge.
  • Free radicals, mostly "active oxygen" and other ions (activated 02 OH etc.) are created.
  • Immediate oxidation of odour-causing compounds.
  • Strict voltage control - minimizes ozone generation.
  • Meets EU standards for indoor air quality.
  • Air returned to the room.
  • Free radicals break down odour-causing compounds, moulds and germs in situ.

Advantages:

  • SMALL FOOTPRINT
  • LOW CAPEX / OPEX
  • MINIMAL MAINTENANCE
  • REDUCES ODOUR IN SITU IN A ROOM
  • PROVIDES SAFE WORKING ENVIRONMENT
  • FEW AIR CHANGES PER HOUR
  • ENERGY SAVINGS
  • NO WATER OR CHEMICALS REQUIRED
  • TURN ON ONLY WHEN ROOM OCCUPIED
  • NO DUCTING REQUIRED

Successful Applications:

  • Water and wastewater treatment plants
  • Food processing facilities
  • Composting and organic recycling facilities
  • Fertilizer plants
  • Rendering plants
  • Pulp and paper industries
  • Surface coating operations (lacquering, spray painting, printing)
  • BTEX and solvent removal operations
  • Foundries
  • Numerous other municipal and industrial applications

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Ambio-Corona Discharge Ambio-Corona Discharge (390 KB)

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