Reducing Emerging Contaminants Ensuing from Rusting of Marine Steel Installations

Abstract

Marine steel installations are usually subject to biocorrosion due to their immersing in seawater. Biocorrosion-causing microorganisms, such as bacteria and fungi, often form biofilms on materials, inducing chemical changes in these materials and in the surrounding liquid medium. The formed biofilms resulting from this phenomenon are considered as emerging contaminants. In this work, in addition to the realization of the electrodeposition of zinc on a steel in chloride bath with various concentrations of Taxus baccata extracts as additives using a direct courant supply, the study of the corrosion of the obtained substrates was performed in seawater as an aggressive environment. The efficiency against corrosion was evaluated by potentiodynamic polarizations and weight loss measurements. The coated surface morphology was analyzed using brightness meter, thickness meter and adhesion tests. The experimental results showed that all tested extracts performed the quality of the zinc deposits and their efficiency against corrosion indicating that coated samples in the presence of the extracts were more resistant minimizing the emerging contaminants in seawater.

A computational analysis of the molecular mechanisms underlying the effects of ibuprofen and dibutyl phthalate on gene expression in fish

“…Among these micropollutants are everyday household chemicals and industrial additives. Emerging contaminants are synthetic or natural chemicals or microbes that are not typically regulated in the environment yet have the potential to enter the environment and create detrimental ecological or human health consequences that are known or suspected [ 1 ]. Some examples of emerging contaminants include plasticizers, plastic additives, personal care products, pharmaceuticals active compounds, surfactants, brominated flame retardants, and per fluorinated compounds [ 2 ].…”