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http://dx.doi.org/10.5762/KAIS.2014.15.1.569

Development and Characterization of Optical Dissolved Oxygen Sensor based on the Fluorescence Detection  

Kwak, Hyun Min (Physics Department Incheon National University)
Kwon, Myeunghoi (Physics Department Incheon National University)
Choi, Gyewoon (Physics Department Incheon National University)
Jung, Yoonseok (Global Optical Communication Co., Ltd.)
Jung, Changhwan (Global Optical Communication Co., Ltd.)
Park, Kiuha (Global Optical Communication Co., Ltd.)
Sohn, Okjae (Global Optical Communication Co., Ltd.)
Kim, Junhyong (Global Optical Communication Co., Ltd.)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.1, 2014 , pp. 569-574 More about this Journal
Abstract
We developed and evaluated a fluorescence-based optical DO sensor (OS-100, Global Optical Communication Ltd., Korea) for long-term monitoring of the dissolved oxygen concentration in waste water treatment. Fluorescent sensing membrane containing $Ru(Dpp)_3{^{2+}}$ (tris(4,7diphenyl-1, 10-phenanthroline) ruthenium(II)) was prepared with GA sol-gel matrix and coated on a quartz plate by sprayed method. Properties of sensor film exhibit deviation about ${\pm}1%$ under wide range of DO concentration from 3 to 10. The developed optical DO sensor was actually mounted in waste water from dyeing industry and successfully applied for on-line DO monitoring. Online monitoring results showed the changes of DO concentrations in wastewater treatment processes with accuracy better than ${\pm}2%$ during the 6 months measurements period in vicious environmental conditions.
Keywords
Dissolved; oxygen; Fluorescence detection; On-line monitoring; Optical sensor;
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Times Cited By KSCI : 1  (Citation Analysis)
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