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1 – 10 of 442SYNOPSIS LOGICAL theories can be postulated for the escalation in incidents of marine main diesel engine lubricant malfunction and associated corrosion. If they are correct, the…
Abstract
SYNOPSIS LOGICAL theories can be postulated for the escalation in incidents of marine main diesel engine lubricant malfunction and associated corrosion. If they are correct, the forecast is temporarily gloomy, until preventive measures become generally used and some long term reformulations are carried out. A number of early‐warning signs can now be recognized. On‐board microbiological tests have proved of great value; biocides are now known which can protect oils in use and many infected systems have been successfully sterilized. Other “straight” oil infections are discussed briefly but as yet the financial implications of other known infections are less pressing.
The distinctive trend in the quest for environmentally‐friendly wood preservatives and coatings towards water‐based formulations represents a challenge to the manufacturer and the…
Abstract
The distinctive trend in the quest for environmentally‐friendly wood preservatives and coatings towards water‐based formulations represents a challenge to the manufacturer and the raw material supplier alike to ensure that they offer the in‐use performance equivalent to that of solvent‐borne formulations. Explains that, in addition to the common need for fungicidal and algicidal protection of the dry film, the requirements for biocidal protection of water‐borne products are different from those of solvent‐based formulations in one key respect, the need for in‐can or wet‐state protection. Details the effects that micro‐organisms can produce in and on inadequately protected coatings and the physical and biological measures that can be undertaken to remedy and prevent such effects. Compares the necessary properties of biocides for wet‐state and dry‐film protection, and gives an appraisal of several biocide types.
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G. Carter and G. Huddart
Unquestionably, mercury‐based products during their many years of use in the paint industry have provided an answer to most of the microbiological problems encountered.
Yanan Wu, Hongfang Liu, Bijuan Zheng, Shuang Qin and Lei Chen
The purpose of this paper was to study some effective evaluation methods for the biocide performance on sulfate-reducing bacteria (SRB) biofilm.
Abstract
Purpose
The purpose of this paper was to study some effective evaluation methods for the biocide performance on sulfate-reducing bacteria (SRB) biofilm.
Design/methodology/approach
The most probable number method, electrochemical impedance spectroscopy (EIS) measurements, scanning electron microscopy (SEM), three-dimensional (3D) photos and epifluorescent microscopy were used in this study.
Findings
The results showed that the minimum inhibitory concentrations and minimum bactericidal concentrations of them to sessile SRB were greatly more than planktonic SRB. The EIS of the two biocides indicated that the biofilm exposed to higher concentrations of biocide were much more compact and flat, which perfectly coincided with the SEM, 3D photos and the epifluorescent microscopies.
Originality/value
In this paper, it, thus, appears that these methods evaluating biocide performance on the SRB biofilm were really effective by comparing the performance of bis-quaternary ammonium salt (BAQS) and tetrakis hydroxymethyl phosphonium sulfate.
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It has been known, for at least 80 years, that micro‐organisms existed which have the capability of attacking aliphatic and aromatic hydro‐carbon materials; it has only been in…
Abstract
It has been known, for at least 80 years, that micro‐organisms existed which have the capability of attacking aliphatic and aromatic hydro‐carbon materials; it has only been in the last decade that any attempt has been made to exploit the practical implications of the earlier work. Now that the attention of the metal‐working industries has been drawn to the economic and hygienic consequences of bacterial and fungal infections, the subject is beginning to attract the attention that it deserves.
Explains and illustrates the problem of microbial infection of lubricants, fuels and water on board ship. Suggests preventive measures and some of the hazards to avoid. Warns…
Abstract
Explains and illustrates the problem of microbial infection of lubricants, fuels and water on board ship. Suggests preventive measures and some of the hazards to avoid. Warns about potential problems with biocides.
Focuses on the use of biocides to combat the growth of microorganisms in coolant systems and oils. Outlines measures which can limit or prevent mcrobial growth and provides a…
Abstract
Focuses on the use of biocides to combat the growth of microorganisms in coolant systems and oils. Outlines measures which can limit or prevent mcrobial growth and provides a brief summary of the European Biocidal Products Directive.
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