Non-dispersive infrared (NDIR) sensor for real-Time nitrate monitoring in wastewater treatment

K. Roodenko, D. Hinojos, K. Hodges, J. F. Veyan, Y. J. Chabal, K. P. Clark, A. Katzir, D. Robbins

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Nitrate is a frequent water pollutant that results from human activities such as fertilizer over-Application and agricultural runoff and improper disposal of human and animals waste. Excess levels of nitrate in watersheds can trigger harmful algal blooms (HABs) and biodiversity loss with consequences that affect the economy and pose a threat to human health. Municipal drinking water and wastewater treatment plants are therefore required to control nitrogen levels to ensure the safety of drinking water and the proper discharge of effluent. Nitrate exhibits distinct absorption bands in the infrared spectral range. While infrared radiation is strongly attenuated in water, implementation of fiber optic evanescent wave spectroscopy (FEWS) enables monitoring of water contaminants in real-Time with high sensitivity. This work outlines the development of a non-dispersive infrared (NDIR) detector for the real-Time monitoring of nitrate, nitrite and ammonia concentrations targeting implementation at municipal wastewater treatment plants (WWTPs) and onsite wastewater treatment systems (OWTS).

Original languageEnglish
Title of host publicationOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX
EditorsIsrael Gannot, Israel Gannot
PublisherSPIE
ISBN (Electronic)9781510623866
DOIs
StatePublished - 2019
EventOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX 2019 - San Francisco, United States
Duration: 2 Feb 20193 Feb 2019

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume10872
ISSN (Print)1605-7422

Conference

ConferenceOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX 2019
Country/TerritoryUnited States
CitySan Francisco
Period2/02/193/02/19

Keywords

  • Fiber optic evanescent wave spectroscopy
  • Nitrogen analysis
  • Non-dispersive infrared
  • Wastewater

Fingerprint

Dive into the research topics of 'Non-dispersive infrared (NDIR) sensor for real-Time nitrate monitoring in wastewater treatment'. Together they form a unique fingerprint.

Cite this