Mid-infrared spectroscopy-based sensors for inline water and wastewater analysis

Trey B. Daunis; Matthew Molyneux; Jennifer C. Dussor; Kevin P. Clark; Dennis I. Robbins; Katy Roodenko

doi:10.1117/12.3008672

12 March 2024 Mid-infrared spectroscopy-based sensors for inline water and wastewater analysis

Trey B. Daunis, Matthew Molyneux, Jennifer C. Dussor, Kevin P. Clark, Dennis I. Robbins, Katy Roodenko

Proceedings Volume 12835, Optical Fibers and Sensors for Medical Diagnostics, Treatment, and Environmental Applications XXIV; 128350E (2024) https://doi.org/10.1117/12.3008672
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

We report on the development of mid-infrared spectroscopy-based sensors for inline water and wastewater analysis. Midinfrared spectroscopy is a powerful tool for chemical identification and quantification. To overcome the limitations of the technique imposed by rapid extinction of the infrared signal in water, we have developed pre-concentration techniques that achieve beyond four orders of magnitude enhancement of measurement sensitivity, along with enhanced selectivity, for analytes. Applications include monitoring of nutrients and metabolites in bioreactor systems for wastewater treatment and industrial processes (e.g. biofuel production), in-line process control in chemical manufacturing, and rapid on-site screening of contaminants in environmental samples for assessment and remediation of environmental contamination sites.

Conference Presentation

Citation Download Citation

Trey B. Daunis, Matthew Molyneux, Jennifer C. Dussor, Kevin P. Clark, Dennis I. Robbins, and Katy Roodenko "Mid-infrared spectroscopy-based sensors for inline water and wastewater analysis", Proc. SPIE 12835, Optical Fibers and Sensors for Medical Diagnostics, Treatment, and Environmental Applications XXIV, 128350E (12 March 2024); https://doi.org/10.1117/12.3008672

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