An automated instrument for monitoring oxygen demand in polluted waters

Guwy, Alan J.; Farley, L.A.; Cunnah, P. J.; Hawkes, Freda R.; Hawkes, D.L.; Chase, M.; Buckland, Harold

doi:10.1016/s0043-1354(99)00202-x

Cited by 20 publications

(13 citation statements)

References 18 publications

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“…Conventional methods of colour, COD and BOD detection in a laboratory (off-line) are often applied to measure the parameters that measures pollutant levels in industrial wastewater [8,9]. These methods have been summarized in Table 1.…”

Section: Conventional Detection Methods For Parameters Of Colour Codmentioning

confidence: 99%

Fibre Optic Sensors for Selected Wastewater Characteristics

Chong

Aziz

Harun

2013

Sensors

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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.

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Section: Conventional Detection Methods For Parameters Of Colour Codmentioning

confidence: 99%

Fibre Optic Sensors for Selected Wastewater Characteristics

Chong

Aziz

Harun

2013

Sensors

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“…Because of the complexity and variability of wastewater quality, ‘Blanket’ determinations, which measure a range of similar substances rather than individual compounds, are usually carried out. When considering organic substances in wastewater, it is customary to measure the amount of oxygen required to oxidise these substances, this then provides a measure of the strength or polluting potential of the sample 8–11…”

Section: Monitoring Organic Pollution In Wastewater: Standard Methodsmentioning

confidence: 99%

“…Traditionally, organic pollution is measured by the standard, off‐line, 5‐day Biological Oxygen Demand test (BOD 5 ), mainly as proof of compliance with relevant legislation 8. This test is an empirical test indicator of biological activity.…”

Section: Monitoring Organic Pollution In Wastewater: Standard Methodsmentioning

confidence: 99%

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On‐line monitoring of wastewater quality: a review

Bourgeois

Burgess

Stuetz

2001

J of Chemical Tech & Biotech

247

106

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Real-time monitoring of wastewater quality remains an unresolved problem to the wastewater treatment industry. In order to comply with increasingly stringent environmental regulations, plant operators as well as instrument manufacturers have expressed the need for new standards and improved comparability and reliability of existing techniques. A review of currently available methods for monitoring global organic parameters (BOD, COD, TOC) is given. The study reviews both existing standard techniques and new innovative technologies with the focus on the sensors' potential for on-line and real-time monitoring and control. Current developments of biosensors, optical sensors and sensor arrays as well as virtual sensors for the monitoring of wastewater organic load are presented and the interests and limitations of these techniques with respect to their application to the wastewater monitoring are discussed.

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“…Application of this technique to undisturbed sediments showed high variation in the distribution of Fe and Mn concentrations over lateral distances as small as 3 mm, indicating that results from single vertical profiles may not be representative. A robust and relatively low-cost instrument for on-line measurements of COD in process wastewaters was developed (Guwy et al, 1999). The method measures oxygen demand based on oxidation by hydrogen peroxide with UV light, with residual hydrogen peroxide determined by gas measurements following a catalase reaction.…”

mentioning

confidence: 99%

Chemical Species

Poppele¹,

Packer²,

Zhang³

et al. 2001

Water Environment Research

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This is a review of the 1999 literature that summarizes analytical techniques for the detection and quantification of organic and inorganic chemical species in drinking water, wastewater, and natural waters. The review emphasizes techniques that are relevant to the environmental engineering and science community. The review is divided into four main sections including new chemical methods, new biological methods, new sample preparation techniques, and new applications.

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An automated instrument for monitoring oxygen demand in polluted waters

Cited by 20 publications

References 18 publications

Fibre Optic Sensors for Selected Wastewater Characteristics

Fibre Optic Sensors for Selected Wastewater Characteristics

On‐line monitoring of wastewater quality: a review

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