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Project
Summary
Under normal steady state
conditions, leakage from potable water systems occur outwards due to
the positive pressure differential between the water in the pipe and
the lower pressure in the surrounding ground. There are
possibilities that under transient dynamic conditions the pressure in
the pipe is sufficiently lowered so that a negative pressure with
respect to the surrounding ground water pressure will occur. This
could drive ingress of water and fine sediment into the pipe. If
the intruded water contained contaminants then a risk to human health
would exist. Three factors must coincide for contaminant ingress to
occur: (i) a change in the hydraulic conditions must generate low or
negative pressure, (ii) an aperture must be present in the pipe system
and (iii) a contaminant source must be present.
This
project will undertake an investigation of the ingress processes
by constructing a sophisticated laboratory experimental rig that will
allow the impact of the changes in a number parameters to be assessed
and subsequently to inform and verify modeling tools to evaluate the
potential for contaminant ingress within complex water distribution
networks.
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Industrial Collaborators
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| This project is funded by EPSRC grant EP/G015546/1
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Maintained
and
updated
by
Richard
Collins, June 2009
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