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Spectral measurements of stack effluents using a double-beam interferometer with background suppression.
Applied Optics
|April 8, 2010
Summary
This study used a mobile double-beam interferometer to measure stack effluent emissions, offering real-time background suppression for accurate field analysis. The technology enables effective environmental monitoring and data comparison, as demonstrated with incinerator emissions.
Area of Science:
- Environmental Science
- Analytical Chemistry
- Spectroscopy
Background:
- Industrial and municipal emissions require accurate monitoring.
- Real-time analysis of effluent spectra is crucial for environmental compliance.
- Traditional methods may lack the sensitivity or speed for effective background suppression.
Purpose of the Study:
- To evaluate a mobile double-beam interferometer for measuring stack effluent emission spectra.
- To demonstrate the system's capability for real-time background suppression in field settings.
- To analyze and compare measured spectra with synthetic models.
Main Methods:
- Utilized a double-beam interferometer installed in a mobile van.
- Conducted field site measurements of effluents from four selected stacks.
- Employed real-time graphical data display for immediate analysis.
- Compared a municipal incinerator spectrum with a FASCODE generated synthetic spectrum.
Main Results:
- The double-beam interferometer provided effective real-time background suppression.
- Field site measurements and near real-time data display were successfully achieved.
- Analysis of selected spectra, including comparison with synthetic data, was performed.
Conclusions:
- Double-beam interferometry is a viable technique for mobile, real-time effluent emission analysis.
- The system offers advantages in background suppression for environmental monitoring.
- The methodology supports accurate spectral analysis and comparison with theoretical models.
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