Award details

A new NMR modality for the non-invasive study of bound and free water SOM pollutants and nutrients in soils: flow diffusion and imaging

Reference	E08576
Principal Investigator / Supervisor	Professor Edward W Randall
Co-Investigators / Co-Supervisors	Dr A Dexter, Dr P Kinchesh
Institution	Queen Mary University of London
Department	Chemistry
Funding type	Research
Value (£)	147,174
Status	Completed
Type	Research Grant
Start date	31/10/1997
End date	31/01/2001
Duration	39 months

Abstract

The Stray Field NMR techniques (relaxation, diffusion and imaging) are non-invasive. They allow the discrimination between bound and `free' water within a soil sample at very high spatial resolution. The NMR signals can also be sensitised to reflect the pore size distribution. A new probe large enough for soil science studies, the first of its kind, will be developed to: (i) determine the distribution of bound and free water in soil samples as a function of clay content, organic matter content and matric potential; (ii) visualise the wetting and drying characteristics of whole soils of different types and pore size distribution so that transport phenomena can be evaluated as a function of initial soil mechanical state and matric potential. The techniques will also be used to visualise the movement and retention of pollutants and agricultural fertilisers (N and P) within soils.

Summary

unavailable

Committee	Closed Committee - Engineering & Biological Systems (EBS)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

I accept the terms and conditions of use (opens in new window)

export PDF file

back to list new search