Photoionisation

NEUTRALOX Photoionisation is an effectice odour treatment process, applied for all odours related to sewage and sludge treatment. Photoionisation copes well with high odour loads (eg. several 100 ppm of H2S) and fluctuating odour loads.

The process is based on the effective interaction of UV-light and a catalytic converter. In the UV-chamber the Photoionization process is initiated by the generation of strong oxidants. Contaminants are adsorbed to the surface of the catalyst and are degraded through the interaction of catalyst , oxidants and UV-light. The result is a constantly odourless cleaned gas which meets international environmental requirements.

Advantages of Photoionisation:

  • can handle very high concentrations (eg. 100’s of ppm of H2S)
  • easily handles peak loads (spikes)
  • operates over a wide temperature range (-30 °C → 50 °C)
  • low maintenance requirements (½ day/year)
  • no water or chemicals required
  • very stable process
  • can easily be turned on or off, and begins working immediately
  • low energy demand
  • small footprint

odour control at screen building
Example: odour control
at screen building

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