Literature DB >> 9134775

Solar inactivation of faecal bacteria in water: the critical role of oxygen.

R H Reed1.   

Abstract

Suspensions of the faecal indicator bacteria Escherichia coli and Enterococcus faecalis were incubated in full sunlight in plastic bottles containing either (i) air-equilibrated (oxygenated) water or (ii) anaerobic (deoxygenated) water. A rapid decrease in cfu ml-1 was observed for actively growing and stationary phase cells of both types of faecal bacteria when illuminated under aerobic conditions, with Ent. faecalis showing the greater enhancement in the rate of inactivation in air-equilibrated water. The demonstration of an oxygen requirement for the inactivation of faecal bacteria in sunlight indicates that solar-based water disinfection systems are likely to require fully aerobic conditions in order to function effectively.

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Year:  1997        PMID： 9134775     DOI： 10.1046/j.1472-765x.1997.00130.x

Source DB:  PubMed          Journal:  Lett Appl Microbiol        ISSN： 0266-8254            Impact factor:   2.858


  15 in total

Review 1.  Not just a drop in the bucket: expanding access to point-of-use water treatment systems.

Authors:  E Mintz; J Bartram; P Lochery; M Wegelin
Journal:  Am J Public Health       Date:  2001-10       Impact factor: 9.308

2.  Development and evaluation of a reflective solar disinfection pouch for treatment of drinking water.

Authors:  D Carey Walker; Soo-Voon Len; Brita Sheehan
Journal:  Appl Environ Microbiol       Date:  2004-04       Impact factor: 4.792

3.  Enhancement of solar water pasteurization with reflectors.

Authors:  N Safapour; R H Metcalf
Journal:  Appl Environ Microbiol       Date:  1999-02       Impact factor: 4.792

4.  Solar light (hv) and H2O2/hv photo-disinfection of natural alkaline water (pH 8.6) in a compound parabolic collector at different day periods in Sahelian region.

Authors:  J Ndounla; C Pulgarin
Journal:  Environ Sci Pollut Res Int       Date:  2015-07-01       Impact factor: 4.223

5.  Temporal and spatial variability of instream indicator bacteria (Escherichia coli) and implications for water quality monitoring.

Authors:  Sarah C Crosby; Nicole C Spiller; Kasey E Tietz; Joshua R Cooper; Peter J Fraboni
Journal:  Environ Monit Assess       Date:  2019-11-13       Impact factor: 2.513

6.  Specific growth rate determines the sensitivity of Escherichia coli to thermal, UVA, and solar disinfection.

Authors:  Michael Berney; Hans-Ulrich Weilenmann; Julian Ihssen; Claudio Bassin; Thomas Egli
Journal:  Appl Environ Microbiol       Date:  2006-04       Impact factor: 4.792

7.  Using limes and synthetic psoralens to enhance solar disinfection of water (SODIS): a laboratory evaluation with norovirus, Escherichia coli, and MS2.

Authors:  Alexander S Harding; Kellogg J Schwab
Journal:  Am J Trop Med Hyg       Date:  2012-04       Impact factor: 2.345

8.  Solar and temporal effects on Escherichia coli concentration at a Lake Michigan swimming beach.

Authors:  Richard L Whitman; Meredith B Nevers; Ginger C Korinek; Muruleedhara N Byappanahalli
Journal:  Appl Environ Microbiol       Date:  2004-07       Impact factor: 4.792

9.  Mechanisms for photoinactivation of Enterococcus faecalis in seawater.

Authors:  Lauren M Sassoubre; Kara L Nelson; Alexandria B Boehm
Journal:  Appl Environ Microbiol       Date:  2012-08-31       Impact factor: 4.792

10.  Inactivation of Escherichia coli by polychromatic simulated sunlight: evidence for and implications of a fenton mechanism involving iron, hydrogen peroxide, and superoxide.

Authors:  Michael B Fisher; Kara L Nelson
Journal:  Appl Environ Microbiol       Date:  2013-11-22       Impact factor: 4.792
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