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Sensors 2013, 13(7), 8640-8668; doi:10.3390/s130708640

Fibre Optic Sensors for Selected Wastewater Characteristics

1
Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
2
Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
*
Author to whom correspondence should be addressed.
Received: 16 May 2013 / Revised: 20 June 2013 / Accepted: 21 June 2013 / Published: 5 July 2013
(This article belongs to the Section Chemical Sensors)
View Full-Text   |   Download PDF [1099 KB, 21 June 2014; original version 21 June 2014]   |  

Abstract

Demand for online and real-time measurements techniques to meet environmental regulation and treatment compliance are increasing. However the conventional techniques, which involve scheduled sampling and chemical analysis can be expensive and time consuming. Therefore cheaper and faster alternatives to monitor wastewater characteristics are required as alternatives to conventional methods. This paper reviews existing conventional techniques and optical and fibre optic sensors to determine selected wastewater characteristics which are colour, Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD). The review confirms that with appropriate configuration, calibration and fibre features the parameters can be determined with accuracy comparable to conventional method. With more research in this area, the potential for using FOS for online and real-time measurement of more wastewater parameters for various types of industrial effluent are promising. View Full-Text
Keywords: online monitoring; fibre optic; chemical oxygen demand; biological oxygen demand; colour; optical sensor; environmental sensing online monitoring; fibre optic; chemical oxygen demand; biological oxygen demand; colour; optical sensor; environmental sensing
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Chong, S.S.; Aziz, A.R.A.; Harun, S.W. Fibre Optic Sensors for Selected Wastewater Characteristics. Sensors 2013, 13, 8640-8668.

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