New sensor system for drinking water quality

Lindquist, Malin; Wide, Peter

doi:10.1109/sficon.2004.1287122

Cited by 9 publications

(6 citation statements)

References 15 publications

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“…The water is sent through an array of sensors with different interface layers and the results are interpreted with multivariate analysis methods. This approach [46][47][48][49][50][51] attempts to provide an integral water quality assessment, but whether it can be realised in a commercially available system remains to be seen.…”

Section: Towards Multi-sensor Real-time Water Monitoring Systemmentioning

confidence: 99%

Monitoring of Nitrates and Phosphates in Wastewater: Current Technologies and Further Challenges

Korostynska

Mason

Al-Shamma’a

2012

International Journal on Smart Sensing and Intelligent Systems

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Abstract-Consumers expect water supply companies to deliver safe drinking water that meets both health quality standards and aesthetic requirements such as colour, turbidity, taste and odour. Current water quality assessment methods of these parameters, which form the basis for sound water resources management, are mainly laboratory based, require fresh supply of chemicals, trained staff and are time consuming. Real-time water quality monitoring is essential for National and International Health and Safety, as it can significantly reduce the level of damage and also the cost to remedy the problem. This paper critically analyses both commercially available and state-of-the-art research methods and devices suitable for real-time wastewater quality monitoring and suggests further developments in this area. In particular, the focus is made on the monitoring of nitrates and phosphates in wastewater and a novel microwave based method for instantaneous water quality assessment is suggested.Index terms: water quality monitoring, in situ analysis, optical methods, industry, nitrates and phosphates, lab on chip sensors, microwave sensors, solid-state sensors.

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Section: Towards Multi-sensor Real-time Water Monitoring Systemmentioning

confidence: 99%

Monitoring of Nitrates and Phosphates in Wastewater: Current Technologies and Further Challenges

Korostynska

Mason

Al-Shamma’a

2012

International Journal on Smart Sensing and Intelligent Systems

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“…Today much of the research is focused on quality control for different kinds of liquids or beverages but can with some modifications be used as personal safety equipment. Experiments has been conducted using drinking water [13] and the results has shown the electronic tongues ability as a qualitymonitoring device.…”

Section: A the Electronic Tongue Systemmentioning

confidence: 99%

Human based sensor systems for safety assessment

Robertsson

Lindquist

Loutfi

et al. 2005

CIHSPS 2005. Proceedings of the 2005 IEEE International Conference on Computational Intelligence for Homeland Security and Pers

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The paper's focus on the assumption that sensor system for personal use has optimal performance if coherent with the human perception system. Therefore, we provide arguments for this idea by demonstrating two examples. The first example is a personal taste sensor for use in finding abnormal ingredients in food. The second application is a mobile sniffing system, coherent with the behavior of a biological system when detecting unwanted material in hidden structures, e.g. explosives in a traveling bag.

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“…With this aim, polymeric sensors based on impedance measurements have been tested to detect contaminant substances originated in the algae degradation process [ 15 ]. A sensor based on a voltammetric e-tongue containing gold and platinum as working electrodes has been reported to exhibit promising results for fast detection of qualitative changes in water quality and for the detection of fluoride, chlorine, and microbial contamination [ 16 ]. Finally, Winquist et al used a voltammetric e-tongue containing gold, iridium, platinum, and rhodium as working electrodes for the detection of NaOCl, NaCl, and NaHSO 3 in water samples [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

Quantitative Determination of Spring Water Quality Parameters via Electronic Tongue

Carbó

Carrero

García-Castillo³

et al. 2017

Sensors

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The use of a voltammetric electronic tongue for the quantitative analysis of quality parameters in spring water is proposed here. The electronic voltammetric tongue consisted of a set of four noble electrodes (iridium, rhodium, platinum, and gold) housed inside a stainless steel cylinder. These noble metals have a high durability and are not demanding for maintenance, features required for the development of future automated equipment. A pulse voltammetry study was conducted in 83 spring water samples to determine concentrations of nitrate (range: 6.9–115 mg/L), sulfate (32–472 mg/L), fluoride (0.08–0.26 mg/L), chloride (17–190 mg/L), and sodium (11–94 mg/L) as well as pH (7.3–7.8). These parameters were also determined by routine analytical methods in spring water samples. A partial least squares (PLS) analysis was run to obtain a model to predict these parameter. Orthogonal signal correction (OSC) was applied in the preprocessing step. Calibration (67%) and validation (33%) sets were selected randomly. The electronic tongue showed good predictive power to determine the concentrations of nitrate, sulfate, chloride, and sodium as well as pH and displayed a lower R2 and slope in the validation set for fluoride. Nitrate and fluoride concentrations were estimated with errors lower than 15%, whereas chloride, sulfate, and sodium concentrations as well as pH were estimated with errors below 10%.

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New sensor system for drinking water quality

Cited by 9 publications

References 15 publications

Monitoring of Nitrates and Phosphates in Wastewater: Current Technologies and Further Challenges

Monitoring of Nitrates and Phosphates in Wastewater: Current Technologies and Further Challenges

Human based sensor systems for safety assessment

Quantitative Determination of Spring Water Quality Parameters via Electronic Tongue

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