Studies on Adhesion of Nitzschia closterium and Chlorella vulgaris to 316L Stainless Steel

Shu Xia Liu; Yi Wan; Dun Zhang

doi:10.4028/www.scientific.net/AMR.485.385

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 485Studies on Adhesion of Nitzschia closterium and...

Studies on Adhesion of Nitzschia closterium and Chlorella vulgaris to 316L Stainless Steel

Abstract:

Microalgae can cause damages to the marine engineering material by adhering to the surface of the material. In this study the adhesion of Nitzschia closterium (bacillariophyceae) and Chlorella vulgaris (chlorophyceae) to 316L stainless steel were investigated. The influences of surface roughness and culture pH value on adhesion were performed. The results showed that the adhesion of N. closterium increased significantly with the increasing roughness (F = 17; p < 0.001). And both species of algae were prone to adhesion to 316L stainless steel immerged in alkalescent medium. Impedimetric method was applied to analyze the process of microalgal adhesion on the surface of stainless steel. A kinetic model (Y = A + Be^-t/C) based on the sensitive variation of double layer capacitance (C_dl) of the electrode abstracted from impedance spectroscopy using equivalent circuit was developed for the algal adhesion.

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Periodical:

Advanced Materials Research (Volume 485)

Pages:

385-388

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.485.385

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Online since:

February 2012

Authors:

Shu Xia Liu, Yi Wan, Dun Zhang

Keywords:

316L Stainless Steel, Adhesion, Chlorella vulgaris, Electrochemical Impedance Spectroscopy (EIS), Nitzschia closterium

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