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Browsing Research Articles (Microbiology and Plant Pathology) by Issue Date
Now showing items 1-20 of 1055
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(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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(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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(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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(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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(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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(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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(Elsevier, 1994)Enhanced biological phosphorus removal activated sludge plants often do not remove phosphorus adequately in order to meet legal demands. Currently FeS04 is being added to almost all South African nutrient removal activated ...
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(Water Reseach Council, 1994)Microbially influenced corrosion (MIC) makes an important contribution to corrosion in various industries. Considerable success has been achieved by the use of biocides. Little information for controlling MIC is, however, ...
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(Elsevier, 1995)Immobilization of Acinetobacter cells can provide a method which could possibly be used to explain the mechanism of biological phosphorus removal from AS systems since this may allow the study of pure cultures in their ...
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(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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(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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(Water Research Council, 1995-07)Raw water supplies utilised at 12 fossil-fired power stations, as well as the corresponding open recirculating cooling water systems were surveyed. Visual inspections were carried out and the total aerobic and anaerobic ...
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(Water Research Council, 1995-07)The growth and distribution of A. johnsonii cells, immobilised within alginate beads suspended in an aerated activated sludge mixed liquor medium, were assessed by viable cell counts on nutrient agar and scanning electron ...
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(Elsevier, 1996)The monitoring of biofouling is continuously evolving with new and better techniques being developed all the time. The major drawback of the currently used techniques is that these methods are complicated and time-consuming, ...
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(Elsevier, 1996)The involvement of Acinetobacter in biological excess phosphate removal from the activated sludge process is widely accepted, though its role is not yet clearly defined. To better understand why activated sludge systems ...
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(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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(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 ...
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(Elsevier, 1998)In this study, surface water was used to evaluate the impact of disinfection processes (chlorination, chloramination, ozonation, UV irradiation and hydrogen peroxide) on biofilm formation in potable water distribution ...
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(Springer, 1998)Human enteric viruses and coliphages have been detected in water that has undergone what is generally considered adequate treatment, including chlorination. Because small numbers of virus particles are needed for the ...
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(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 ...
Now showing items 1-20 of 1055