Colorimetric Fiber Optic Based Probe for Real-Time Monitoring of Dissolved CO2 in Aquaculture Systems

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Mendes, J (Author) Other; Coelho, L (Author) Other; Rocha, A (Author) Other; Carlos M Pereira (Author) FCUP; Kovacs, B (Author) Other; Jorge, P (Author) Other; Borges, MT (Author) FCUP

Journal

Title: Proceedings

Final page: 5

ISSN: 2504-3900

Publisher: MDPI

Other information

Authenticus ID: P-00Q-RW9

DOI: 10.3390/proceedings2019015005

Abstract (EN): <jats:p>Dissolved carbon dioxide (dCO2) evaluation is very important in many different fields. In this work, a new, integrated, colorimetric-optical fiber-based system for dCO2 monitoring in aquaculture industry was developed. The sensing chemistry is based on colorimetric changes of the used indicator¿poly p-nitrophenol (pNPh)¿in contact with CO2. Preliminary tests were done in a laboratory environment (calibration) and in a laboratory Recirculating Aquaculture System (RAS) with controlled CO2 injection. The results have shown the suitability of the new sensor for assessing dCO2 dynamics in RAS and its fast detection of low dCO2 concentrations in an appropriate operation range.</jats:p>

Language: English

Type (Professor's evaluation): Scientific