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Bacteria in drinking water are key to keeping it clean
Date:8/14/2013

ays Professor Biggs. "This means it should be possible to control or even prevent the creation of biofilms in the water supply by targeting these particular bacteria, potentially reducing the need for high dosage chemical treatments."

Domestic water supplies in the UK are regularly tested for levels of bacteria and, if these are too high, water is treated with greater concentrations of chlorine or pipe networks are flushed through to clear the problem. However, the standard tests look for indicator organisms rather than the individual types which are present. Testing methods being developed by the Sheffield team as used in this research involve DNA analysis to identify the specific types of bacteria present.

"The way we currently maintain clean water supplies is a little like using antibiotics without knowing what infection we're treating," says Professor Biggs. "Although it's effective, it requires extensive use of chemicals or can put water supplies out of use to consumers for a period of time. Current testing methods also take time to produce results, while the bacteria are cultured from the samples taken.

"The DNA testing we're developing will provide a fast and more sophisticated alternative, allowing water companies to fine tune their responses to the exact bacteria they find in the water system."


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Contact: Abigail Chard
abigail@campuspr.co.uk
44-079-604-48532
University of Sheffield
Source:Eurekalert

Page: 1 2

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