Analysis of clogging in constructed wetlands using magnetic resonance

Morris, R.H. ORCID: 0000-0001-5511-3457, Newton, M.I. ORCID: 0000-0003-4231-1002, Knowles, P.R., Bencsik, M. ORCID: 0000-0002-6278-0378, Davies, P.A., Griffin, P. and McHale, G., 2011. Analysis of clogging in constructed wetlands using magnetic resonance. Analyst, 136, pp. 2283-2286.

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Abstract

In this work we demonstrate the potential of permanent magnet based magnetic resonance sensors to monitor and assess the extent of pore clogging in water filtration systems. The performance of the sensor was tested on artificially clogged gravel substrates and on gravel bed samples from constructed wetlands used to treat wastewater. Data indicates that the spin lattice relaxation time is linearly related to hydraulic conductivity in such systems. In addition, within biologically active filters we demonstrate the ability to determine the relative ratio of biomass to abiotic solids, a measurement which is not possible using alternative techniques.

Item Type: Journal article
Publication Title: Analyst
Creators: Morris, R.H., Newton, M.I., Knowles, P.R., Bencsik, M., Davies, P.A., Griffin, P. and McHale, G.
Publisher: Royal Society of Chemistry
Date: 2011
Volume: 136
Identifiers:
NumberType
10.1039/c0an00986eDOI
Divisions: Schools > School of Science and Technology
Depositing User: EPrints Services
Date Added: 09 Oct 2015 11:10
Last Modified: 09 Jun 2017 13:51
URI: http://irep.ntu.ac.uk/id/eprint/23807

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