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Autonomous nutrient detector for water and wastewater applications

Cleary, John and Maher, Damien and Diamond, Dermot (2011) Autonomous nutrient detector for water and wastewater applications. In: 5th EWWMC - European Water & Wastewater Management Conference, 26-27 Sept 2011, London, UK.

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Abstract

An autonomous microfluidic sensor for phosphate in environmental waters has been developed and validated in laboratory and field trials. The sensor is based on the molybdenum yellow method for phosphate detection and employs a microfluidic manifold where mixing, reaction and detection take place. Optical detection is performed using a light emitting diode (LED) light source and a photodiode detector, while wireless communications allow near real-time access to the collected data. In parallel with this work, detection schemes for other nutrients (ammonia, nitrate/nitrite) are being developed, with the goal of developing a low cost, field deployable multi-nutrient detection platform. Utilising colorimetric chemistry and LED-based detection systems allows a modular approach which facilitates integration of new detection schemes with the platform provided by the phosphate sensor. The multi-nutrient analyser system will benefit a range of users including local authorities, monitoring agencies and the municipal and industrial wastewater treatment sectors.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:No
Subjects:Physical Sciences > Analytical chemistry
Physical Sciences > Chemical detectors
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Enterprise Ireland, Science Foundation Ireland
ID Code:16757
Deposited On:18 Jan 2012 10:38 by John Cleary. Last Modified 18 Jan 2012 10:38

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