APPLICATION OF SEMICONDUCTOR GAS SENSORS ARRAY FOR CONTINUOUS MONITORING OF SEWAGE TREATMENT PROCESS REGULARITY
Łukasz Guz
l.guz@pollub.plPolitechnika Lubelska, Zakład Jakości Powietrza Zewnętrznego i Wewnętrznego (Poland)
Abstract
Devices with a array composed of various gas sensors, also called electronic noses, allow to determine the unique pattern of signals (gas fingerprint) for the analyzed gas samples. When the strict measurement conditions are obeyed, signals can be correlated with several physico-chemical parameters of the gas samples, as well as liquids with a headspace phase. The array composed of eight MOS type resistive semiconductor gas sensors was used to control wastewater treatment process regularity, conducted in semi-automated laboratory SBR reactor. Gaseous phase was sampled above the wastewater surface in closed reactor chamber and afterward dehumidified using a nafion tube dryer. For the analysis of multidimensional data there were used artificial neural networks (ANN) which evaluated the status of the process. The research results revealed high usefulness of MOS sensors and SSN for continuous monitoring of wastewater treatment process regularity. In case of the devices connected to world wide web, there is a possibility of remote viewing of the process status.
Keywords:
wastewater, electronic noses, sensor arrays, artificial neural networksReferences
Arshak K., Moore E., Lyons G. M., J. Harris, Clifford S.: A review of gas sensors employed in electronic nose applications. Sensor Review 24(2)/2004, 181–198, [DOI: 10.1108/02602280410525977].
Google Scholar
Bourgeois W., Burgess J.E., Stuetz R.M.: On-line monitoring of wastewater quality: a review, Journal of Chemical Technology and Biotechnology 76, 2001, 337–348, [DOI: 10.1002/jctb.393].
Google Scholar
Bourgeois W., Gardey G., Servieres M., Stuetz R. M.: A chemical sensor array based system for protecting wastewater treatment plants, Sensors and Actuators B 91 (1-3), 2003, 109–116, [DOI: 10.1016/S0925-4005(03)00074-1].
Google Scholar
Bourgeois W., Stuetz R. M.: Use of a chemical sensor array for detecting pollutants in domestic wastewater. Water Research 36(18)/2002, 4505–4512, [DOI: 10.1016/S0043-1354(02)00183-5].
Google Scholar
Capelli L., Sironi S., Centola P., Rosso R. D., Grande M. I.: Electronic noses for the continuous monitoring of odours from a wastewater treatment plant at specific receptors: Focus on training methods. Sensors and Actuators B 131(3)/2008, 53–62, [DOI: 10.1016/j.snb.2007.12.004].
Google Scholar
Dewettinck T., Hege K. V., Verstraete W.: The electronic nose as a rapid sensor for volatile compounds in treated domestic wastewater. Water Research 35(10)/2001, 2475–2483, [DOI: 10.1016/S0043-1354(00)00530-3].
Google Scholar
El-Din G.A., Smith D.W.: A neural network model to predict the wastewater inflow incorporating rainfall events. Water Research 36(5)/2002, 1115–1126, [DOI: 10.1016/S0043-1354(01)00287-1].
Google Scholar
Guz Ł., Sobczuk H., Suchorab Z.: Pomiar odorów za pomocą przenośnego miernika z matrycą półprzewodnikowych czujników gazu, Przemysł Chemiczny 89 (4), 2010, 378–381.
Google Scholar
Hecht-Nielsen R. H.: Kolmogorov’s mapping neural network existence theorem, Proceedings of the IEEE First International Conference on Neural Networks, San Diego, 1987, 11–13.
Google Scholar
Micone P. G., Guy C.: Odour quantification by a sensor array: An application to landfill gas odours from two different municipal waste treatment works. Sensors and Actuators B 120(2)/2007, 628–637, [DOI: 10.1016/j.snb.2006.03.026].
Google Scholar
Nake A., Dubreuil B., Raynaud C., Talou T.: Outdoor in situ monitoring of volatile emissions from wastewater treatment plants with two portable technologies of electronic noses. Sensors and Actuators B 106(1)/2005, 36–39, [DOI: 10.1016/j.snb.2004.05.034].
Google Scholar
Onkal-Engin G., Demir I., Engin S. N.: Determination of the relationship between sewage odour and BOD by neural networks. Environmental Modelling & Software 20(7)/2005, 843–850, [DOI:10.1016/j.envsoft.2004.04.012].
Google Scholar
Sironi S., Capelli L., Centola P., Del Rosso R., Grande M. I.: Continuous monitoring of odours from a composting plant using electronic noses. Waste Management 27/2007, 389–397, [DOI: 10.1016/j.wasman.2006.01.029].
Google Scholar
Sohn J. H., Dunlop M., Hudson N., Kim T. I., Yoo Y. H.: Non-specific conducting polymer-based array capable of monitoring odour emissions from a biofiltration system in a piggery building. Sensors and Actuators B 135(2)/2009, 455–464, [DOI: 10.1016/j.snb.2008.10.007].
Google Scholar
Stuetz R. M., Fenner R. A., Engin G.: Characterisation of wastewater using an electronic nose. Water Research 33(2)/1999, 442–452, [DOI: 10.1016/S0043-1354(98)00245-0].
Google Scholar
Figaro USA INC., General information for TGS sensors, www.figarosensor.com, 2005.
Google Scholar
Authors
Łukasz Guzl.guz@pollub.pl
Politechnika Lubelska, Zakład Jakości Powietrza Zewnętrznego i Wewnętrznego Poland
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