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The potential use of hydrogen peroxide in water well rehabilitation

Lookup NU author(s): Professor Rick Brassington

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Abstract

A water supply borehole in the Sherwood Sandstone aquifer in Warrington, UK was found to be infested with iron bacteria that resulted in large ochreous deposits and damaged the pump. Before the pump was replaced the borehole was treated using hydrogen peroxide. Comparison of the borehole condition seen in CCTV surveys carried out before and after treatment shows that previously observed bacterial growths had been removed. A specific capacity curve was constructed from step test data and used to assess the borehole yield under operational conditions. This showed that the iron bacteria had increased drawdown by some 20% and that the treatment had restored the previous yield characteristics. The improvement is thought to be due to a mechanical scrubbing effect caused by the vigorous release of oxygen bubbles during the decay of the peroxide.

Publication metadata

Author(s): Brassington FC, Whitter JP, Macdonald RA, Dixon J

Publication type: Article

Publication status: Published

Journal: Water & Ennvironment Journal

Year: 2009

Volume: 23

Issue: 1

Pages: 69-74

ISSN (print): 1747-6585

ISSN (electronic): 1747-6593

Publisher: Wiley-Blackwell Publishing Ltd.

URL: http://dx.doi.org/10.1111/j.1747-6593.2008.00132.x

DOI: 10.1111/j.1747-6593.2008.00132.x

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