The ever increasing demand for real time environmental monitoring is currently being driven by strong legislative and societal drivers.  Low cost autonomous environmental monitoring systems are required to meet this demand as current monitoring solutions are insufficient.  This poster presents an autonomous nutrient analyser platform for water quality monitoring.  Results from a field trial of the nutrient analyser are reported along with current work to expand the range of water quality targets

Cleary, John

Cogan, Deirdre

Diamond, Dermot

Maher, Damien

English

DCU Online Research Access Service

UNIVERSITY COLLEGE DUBLIN    DUBLIN CITY UNIVERSITY    TYNDALL NATIONAL INSTITUTE Autonomous Nutrient Detection For Water Quality MonitoringINTRODUCTION• The ever increasing demand for real time environmental monitoring is currently being driven by strong legislative and societal drivers [1]• Low cost autonomous environmental monitoring systems are required to meet this demand as current monitoring solutions are insufficient• This poster presents an autonomous nutrient analyser platform for water quality monitoring• Results from a field trial of the nutrient analyser are reported along with current work to expand the range of water quality targetsDamien Maher, John Cleary, Deirdre Cogan and Dermot DiamondCLARITY: Centre for Sensor WEB Technologies, Dublin City University, Dublin 9, Ireland ANALYSER DESIGNIN-SITU MONITORINGCURRENT WORKTelLabs Aqua Monitrix System (Targets: Nitrate, Nitrite, pH, Chemical Oxygen Demand)Phosphate monitoring in a meat processing plant discharge stream (L) and at a waste water treatment plant (R).We acknowledge support for this research from Science Foundation Ireland through the CLARITY Centre (grant code 07/CE/I1147), Enterprise Ireland (grant codes IP/2011/0103, IP/2008/544 and CFTD/08/111).  We also acknowledge support from Episensor Ltd. in project IP/2008/544.References[1] Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy, Official Journal of the European Union, 2000, OJ  L 327. [2] F. Collins, D. Orpen, D. Maher, J. Cleary, C. Fay and D. Diamond, ‘Distributed Chemical Sensor Networks for Environmental Sensing’, The Second International Conference on Sensor Device Technologies and Applications (SENSORDEVICES 2011), Nice, France, August 2011.• Current work is focused on the development of a new analyser system to expand the range of nutrient targets and to monitor other water quality parameters• The Aqua Monitrix system currently under development in collaboration with T.E. Laboratories (Co. Carlow, Ireland) will provide autonomous monitoring of a range of water quality parameters in both natural waters and at waste water treatment plantsMicrofluidic analyser for phosphate monitoring in water; (1) Sample inlet; (2) Control board and microfluidic chip (insert); (3) Peristaltic pumps; (4) Reagent bags; (5) IP68 enclosure• The nutrient analyser is a compact and portable unit, capable of autonomously performing wet chemistry in remote locations [2]• The analyser automatically acquires and filters a water sample, mixes it with a reagent in a microfluidic chip, detects the colour formed after a reaction period and communicates the resulting data back to the user• The use of microfluidic technology minimises reagent and battery usage and maximises deployment lifetimeResults showing phosphate levels measured in a waste water treatment plant effluent outflow over a 5 day period.  The manual samples, shown alongside the nutrient analyser data, were collected using an autosampler and analysed in the laboratory.

[1] Directive 2000/60/EC of the European Parliament and of the

Distributed Chemical Sensor Networks for Environmental Sensing’,

Autonomous nutrient detection for water quality monitoring

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Autonomous nutrient detection for water quality monitoring

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