- Odor Monitoring Systems - Network of Electronic Nses

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When facing olfactory pollution, unpleasant odor monitoring is a prerequisite for efficient odor control strategy. RQ Box continuously monitors odor nuisances and pollutant gas emissions. Besides odor, RQ Box also quantifies multiple gases: ammonia, sulfurs (hydrogen sulfide, mercaptans) and VOCs. Emissions are quantified by electronic noses also named e-noses. These odor analyzers, calibrated according to the EN 13725 or ASTM E-679-91 standards, are located close to the odor source. Odor measurement results (odor concentration in odor units, odor flow rate or odor intensity) and local weather data are accessed from the PC of the monitoring center located on site. The atmospheric dispersion modeling software calculates the odor and gas plumes by combining field data in real-time. It becomes easier to assess and forecast the impact of chemical and olfactory pollution. Results can be correlated with odor perception or complaints from local residents.

  • Continuous measurement of emissions, to the nearest second
    • Odor concentration (odor unit), in accordance with current standards : EN 13725, ASTM E679
    • Concentrations of gas pollutants (ppm) : VOCs, NH3, H2S or mercaptans
  • Dispersion modeling of emissions around the site
    • Dynamic visualization of the « odor » or « pollutant » plume on a 3D/4D map
    • Dispersion modeling per source or for the whole site
    • Calculation of concentration at geo-localized points of interest around the site
    • Assessment of the contribution of each source in terms of emission
    • Automated daily dispersion reports
  • Onsite monitoring, away from emission sources
  • Management of real-time alerts in the event the threshold is crossed
    • Triggering of warning systems: siren (two tone), flashing lights, sms, etc.
    • Automatic calculation of the frequence of threshold exceedance
  • Control of odor treatment facilities

  • Operator alerted in real time in the event the threshold is crossed
  • Odor treatment processes optimized thanks to integrated facility control
  • Return on investment between 9 and 18 months with treatment facility control, due to economies of water, process chemicals and energy
  • A reliable tool for decision support to reduce pollution and be part of a process of continuous improvement: ISO 14001, ISO 9001
    • An « odor » issue simplified thanks to a continuous instrumental measurement
    • Emission levels reduced by better knowledge and control of operating conditions
  • Historical results, easy to interpret, which facilitates communication between operators, local authorities and residents
  • A flexible and scalable solution :
    • Sampling system suitable for all types of sources: channeled, surface, volume
    • A modular measuring device according to the site: analyzers, weather station, dispersion
  • Integration of the most powerful dispersion models (3D Lagrangian calculation engine) or simplified systems (2D Gaussian)

The RQ Box solution includes:

  • A field based monitoring device, located on the site to be monitored
    • DnD (Dry and Dilute): specific sampling equipment for channeled air flows, if required
    • RQ Box : network of analyzers at emission sources
    • Meteorological station(s)
    • Radio frequency or wired communication protocol
  • An on site monitoring center
    • Workstation with RQ Net software to view the historic emission levels of each source
    • Dispersion workstation for monitoring the dispersion of emissions around the site

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