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Canales C, Galarce C, Rubio F, Pineda F, Anguita J, Barros R, Parragué M, Daille LK, Aguirre J, Armijo F, Pizarro GE, Walczak M, De la Iglesia R, Navarrete SA, Vargas IT. Testing the Test: A Comparative Study of Marine Microbial Corrosion under Laboratory and Field Conditions. ACS OMEGA 2021; 6:13496-13507. [PMID: 34056496 PMCID: PMC8158798 DOI: 10.1021/acsomega.1c01762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
Microbially influenced corrosion (MIC) is an aggressive type of corrosion that occurs in aquatic environments and is sparked by the development of a complex biological matrix over a metal surface. In marine environments, MIC is exacerbated by the frequent variability in environmental conditions and the typically high diversity of microbial communities; hence, local and in situ studies are crucial to improve our understanding of biofilm composition, biological interactions among its members, MIC characteristics, and corrosivity. Typically, material performance and anticorrosion strategies are evaluated under controlled laboratory conditions, where natural fluctuations and gradients (e.g., light, temperature, and microbial composition) are not effectively replicated. To determine whether MIC development and material deterioration observed in the laboratory are comparable to those that occur under service conditions (i.e., field conditions), we used two testing setups, in the lab and in the field. Stainless steel (SS) AISI 316L coupons were exposed to southeastern Pacific seawater for 70 days using (i) acrylic tanks in a running seawater laboratory and (ii) an offshore mooring system with experimental frames immersed at two depths (5 and 15 m). Results of electrochemical evaluation, together with those of microbial community analyses and micrographs of formed biofilms, demonstrated that the laboratory setup provides critical information on the early biofilm development process (days), but the information gathered does not predict deterioration or biofouling of SS surfaces exposed to natural conditions in the field. Our results highlight the need to conduct further research efforts to understand how laboratory experiments may better reproduce field conditions where applications are to be deployed, as well as to improve our understanding of the role of eukaryotes and the flux of nutrients and oxygen in marine MIC events.
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Affiliation(s)
- Camila Canales
- Science
Institute & Faculty of Industrial Engineering, Mechanical Engineering
and Computer Science, University of Iceland, Hjardahaga 2, Reykjavík 107, Iceland
| | - Carlos Galarce
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ingeniería, Pontificia Universidad
Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Francisca Rubio
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ingeniería, Pontificia Universidad
Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Fabiola Pineda
- Facultad
de Ingeniería, Pontificia Universidad
Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
- Centro
de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago 8580745, Chile
| | - Javiera Anguita
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ingeniería, Pontificia Universidad
Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Ramón Barros
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ciencias Biológicas, Pontificia
Universidad Católica de Chile, Chile. Avda. Libertador Bernardo O’Higgins 340, Santiago 8331150, Chile
| | - Mirtala Parragué
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Estación
Costera de Investigaciones Marinas, Pontificia
Universidad Católica de Chile, Osvaldo Marín 1672 Las Cruces, El Tabo 2690931, Chile
| | - Leslie K. Daille
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ciencias Biológicas, Pontificia
Universidad Católica de Chile, Chile. Avda. Libertador Bernardo O’Higgins 340, Santiago 8331150, Chile
| | - Javiera Aguirre
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Escuela
de Construcción Civil, Facultad de Ingeniería, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Francisco Armijo
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Química y de Farmacia, Pontificia
Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Gonzalo E. Pizarro
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ingeniería, Pontificia Universidad
Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Magdalena Walczak
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ingeniería, Pontificia Universidad
Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Rodrigo De la Iglesia
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ciencias Biológicas, Pontificia
Universidad Católica de Chile, Chile. Avda. Libertador Bernardo O’Higgins 340, Santiago 8331150, Chile
| | - Sergio A. Navarrete
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ciencias Biológicas, Pontificia
Universidad Católica de Chile, Chile. Avda. Libertador Bernardo O’Higgins 340, Santiago 8331150, Chile
- Estación
Costera de Investigaciones Marinas, Pontificia
Universidad Católica de Chile, Osvaldo Marín 1672 Las Cruces, El Tabo 2690931, Chile
- Center
for Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Avda. Libertador Bernardo O’Higgins 340, Santiago 8331150, Chile
| | - Ignacio T. Vargas
- Marine
Energy Research & Innovation Center (MERIC), Avda. Los Conquistadores 1700, oficina 902, Providencia, Santiago 7520282, Chile
- Facultad
de Ingeniería, Pontificia Universidad
Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
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