Biochemical rust removal by Thiobacillus ferrooxidans

Kino, Kuniki; Sugimoto, Nobuyuki; Kuroda, Kazuhiko; Usami, Shoji

doi:10.1007/bf00499700

Cited by 3 publications

(1 citation statement)

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“…Rubber gaskets over stored foods and industrial materials can become infected and so deterio rate; jointing mixtures for sealing pipes together may contain sulphur which thiobacilli attack, causing leakage and corrosion of the pipe metal (Frederick & Starkey 1948). On a more positive theme, Kino et at. (1981) described a process using thiobacilli for the biochemical removal of rust.…”

Section: (E) Corrosion and Deteriorationmentioning

confidence: 99%

Economic importance of sulphur bacteria

Postgate

1982

Phil. Trans. R. Soc. Lond. B

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Microbes, through their specialized metabolic processes and ecologies, play a fundamental part in man’s economy, and their economic roles are widely recognized as important. The sulphur bacteria have had in past geological eras, and are having today, numerous and diverse effects, often deleterious, scattered throughout the economy. Many of their economic roles are not widely known. Their economic and environmental effects arise, according to the type or combination of species involved, principally from (1) the production of acid, (2) the formation or removal of hydrogen sulphide, and (3) the removal of oxygen. In this paper their various effects on industry and the environment are surveyed.

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Section: (E) Corrosion and Deteriorationmentioning

confidence: 99%

Economic importance of sulphur bacteria

Postgate

1982

Phil. Trans. R. Soc. Lond. B

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Tuning the pH‐responsiveness capability of poly(acrylic acid‐co‐itaconic acid)/NaOH hydrogel: Design, swelling, and rust removal evaluation

Olvera‐Sosa

Guerra‐Contreras

Gómez‐Durán

et al. 2019

J of Applied Polymer Sci

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The swelling behavior of poly(acrylic acid‐co‐itaconic acid)/NaOH hydrogel as well as its ability for iron and copper rust removal was studied and established for the first time. Through an experimental design, the influence of the synthesis parameters on hydrogel response was determined. It was found that pH‐responsiveness dependence of hydrogel determines its application. In alkaline media, the hydrogel acted as superabsorbent, while in acidic, the most outstanding property was its pickling capability that allowed to clean carbon steel and copper metallic surfaces. Infrared, thermogravimetry, and scanning electron microscopy were performed to determine copolymer formation, thermal properties, and morphology. Metallic crystallographic phases formed during the corrosion processes were determined by X‐ray diffractometer. Hydrogel adhesiveness followed by diffusion and dissolution of metal oxides species was identified as the main steps in the rust removal mechanism. This method offers a new, environmentally friendly perspective to eliminate corrosion from metallic surfaces compared with traditional strategies. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48403.

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