AIRYX WASTEWATER GAS ANALYZERS (WGA)
Measurement system providing long-term stable, real-time measurements of relevant greenhouse gas emissions from wastewater treatment plants along with minimal maintenance and calibration effort.
The measurement principle for N2O, CO2, and CH4 analysis is Non-dispersive infrared (NDIR), which is based on the absorption of infrared light at gas-specific wavelengths. The decrease in detected infrared intensity is proportional to the concentration of N2O, CO2, or CH4 in the sample gas. Additionally, an electrochemical oxygen sensor measures O2 concentration through a chemical reaction at the sensor electrodes, generating an electrical signal that is proportional to the oxygen level.
Gases are sampled via a flexible deployable floating hoods. The WGA does not need any gas bottles for operation and offers increased precision by background-corrected emission quantification, internal zero-drift reduction and correction for cross interferences (CO2, water vapour) by cutting-edge Airyx technology.
Airyx WGA 020
Long-term stable, real-time emission monitoring of N2O, CO2, CH4 and O2 at denitrification basins of waste water treatment plants.
- continuous concentration measurements, real-time monitoring of target gases with high temporal resolution for accurate process and emission control
- calculation of emission rates based on precise flow measurements, maintenance-free total flow sensor inside analyser unit
- no need for gas bottles ; simplified deployment ; lower operational costs ; increased operation safety
- targeted and stable gas collection directly from the water surface, even in dynamic or harsh environments
- Sample gas drying impedes humidity related sensor degradation
- designed for long-term field deployment: rugged, weatherproof enclosure (IP64 rating) with sun roof
- optional heated sampling lube preventing condensation for loss-free gas transfer between sampling hood and analyser
- automated internal zero point calibration & cross-interference checks ; integrated background measurement
- application: GHG emission measurements at wastewater treatment plants
