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Browsing Research Articles (Eugene Cloete) by UP Author "Brözel, Volker Siegfried"
Now showing items 1-11 of 11
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Brözel, Volker Siegfried; Pietersen, Belinda; Cloete, T.E. (Thomas Eugene), 1958- (Water Research Council, 1993-07)Bacterial communities in water-cooling systems treated with bactericides often become resistant to these bactericides. This has been ascribed to selection for resistant cells. Certain bacteria, having a high inherent ...
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Cloete, Thomas Eugene; Da Silva, E.; Brözel, Volker Siegfried (Water Research Council, 1993-10)Biofouling in industrial water systems is normally prevented by the use of bactericides. However, bactericide programmes often fail owing to the lack of suitable techniques for determining the in situ bactericide concentration ...
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Cloete, Thomas Eugene; Brözel, Volker Siegfried; Pressly, J. (Water Research Council, 1989-01)Bacteria forming biofilms occur in all open water cooling systems where they accelerate metallic corrosion, reduce flow rate and decrease heat energy transfer rate. A population structure study of seven systems was conducted. ...
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Cloete, Thomas Eugene; Jacobs, Liesel; Brözel, Volker Siegfried (Springer, 1998-01)Oxidising and non-oxidising biocides are commonly used in an attempt to control biofouling in industrial water systems. Many of these programmes, however, fail due to the incorrect selection and application of these chemical ...
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Brözel, Volker Siegfried; Cloete, Thomas Eugene (Water Research Council, 1992-04)Bactericides were applied to experimental open recirculating cooling-water systems at concentrations found to be effective under laboratory pure-culture conditions. Total aerobic plate counts and bacterial population ...
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Brözel, Volker Siegfried; Cloete, Thomas Eugene (Water Research Council, 1991-10)The effect of storage at various temperatures on the bacterial community of a cooling-water sample and a tap-water sample was determined. Samples were stored at 4, 10, 20 and 30 degrees C for 24, 48, 72 and 216 h and the ...
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Brözel, Volker Siegfried; Cloete, Thomas Eugene (Water Research Council, 1991-01)Eighteen dominant isolates from water-cooling systems were exposed to 50mg/l of commercially available bactericides, and the kill percentage was determined after 6 h. Application costs of all bactericides giving an average ...
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Pietersen, Belinda; Brözel, Volker Siegfried; Cloete, Thomas Eugene (Water Research Council, 1995-04)The possible development of resistance of bacteria found dominant in industrial water systems to the oxidising biocides hypochlorous acid and 3-bromo-1-chloro-5,5-dimethylhydantoin was investigated. Pseudomonas aeruginosa, ...
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Brözel, Volker Siegfried; Pietersen, Belinda; Cloete, Thomas Eugene (Elsevier, 1995)Bacterial communities in water cooling systems treated with bactericides often become resistant to these bactericides. This has been ascribed to selection for resistant cells. Certain bacteria, having a high inherent ...
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Pietersen, Belinda; Brözel, Volker Siegfried; Cloete, Thomas Eugene (Water Research Council, 1996-01)The aim of the work reported here was to investigate the growth-inhibitory activity of HOCI and hydrogen peroxide toward Escherichia coli K12 during both logarithmic and stationary phases of the growth cycle, as well as ...
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Pietersen, Belinda; Brözel, Volker Siegfried; Cloete, Thomas Eugene (Water Research Council, 1996-07)Hydrogen peroxide is used in various applications to prevent, control or decrease bacterial activity in e.g. cooling water, hospitals, recreational waters and the food industry. The aim of the work reported here was to ...
Now showing items 1-11 of 11