Effect of Magnetic Treatment of Potable Water in Looped and Dead End Water Networks

El-Shamy, A. M.

doi:10.21608/ejchem.2019.7268.1595

Cited by 11 publications

(4 citation statements)

References 30 publications

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“…4. The agent of depolarization process was a steamy type, since it is expected to be H2S, because the addition of H2S back into the de-gassed cultures presented the identical forms of polarization curves as before de-gassing [104,105].…”

Section: Other Mic Mechanisms Due To Srbmentioning

confidence: 99%

A Review on: Biocidal Activity of Some Chemical Structures and Their Role in Mitigation of Microbial Corrosion

El-Shamy¹

2020

Egypt. J. Chem.

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Microbial corrosion has developed a foremost problematic in the oil and gas industrial field. This problem is by reason of the continual usage of water swamping in promoting oil recovery. This water moistens the walls of oil pipelines. Microbial corrosion is also present in other industries such as nuclear power reactors and in most hydropower applications. Increased corporate infrastructure also leads to increased microbial corrosion. Sulfate Reducing Bacteria (SRB) is considered as the main kind of bacterial which cause of pipeline corrosion. Because of microbial deterioration is not understood, until recently, there is no clear mechanism to explain why and how microbial corrosion occurs because of the complexity of this area. The new theory of biocatalytic cathodic sulfate reduction is bio-electrochemistry based. In this theory, the bioenergetics can explain why microbial corrosion occurs, while the extracellular electron transference theory is capable of explain how microbial corrosion happens. The microbial corrosion can be caused by nitrate reducing bacteria, which led to an analogous biocatalytic cathodic nitrate reduction theory. The electron mediator assessment intended to validate the extracellular electron transference progression which anticipated in biocatalytic cathodic sulphate reduction. The electron mediators like riboflavin and flavin adenine dinucleotide were accomplished of hastening the microbial corrosion by indorsing electron transport flanked by an iron surface and a biofilm. In case of deficient in organic carbon, the elemental iron substituted the organic carbons as an energy source/electron donor for SRB to get their conservation energy. Under unembellished undernourishment of organic carbon, the largest pit depth was accomplished, which was consistent with the estimate of biocatalytic cathodic sulphate reduction. The developing request and crucial necessity in oil and gas industry is to find an effectual method to avoid and/or mitigate microbial corrosion at a rational cost.

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Section: Other Mic Mechanisms Due To Srbmentioning

confidence: 99%

A Review on: Biocidal Activity of Some Chemical Structures and Their Role in Mitigation of Microbial Corrosion

El-Shamy¹

2020

Egypt. J. Chem.

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“…In summary, the deliberate choice of a higher cathodic potential range relative to the anodic range in electrochemical experiments aims to capture cathodic reactions, protect the material, and provide a thorough understanding of its electrochemical behavior. The selected potential range should align with the study's goals and the expected electrochemical processes 35 . The results of potentiodynamic polarization experiments with increasing concentrations of polyaniline in both uncontrolled and inhibited 3.5% NaCl solutions are presented in Table 4 and Fig.…”

Section: Resultsmentioning

confidence: 99%

Flawless polyaniline coating for preservation and corrosion protection of ancient steel spearheads: an archaeological study from military museum, Al-Qala, Egypt

Megahed,

Elashery,

Saleh

et al. 2024

Sci Rep

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The purpose of this research was to examine the viability of applying a flawless polyaniline coating on steel spearheads to preserve them and protect them from corrosion. The spearpoints, thought to be archaeologically significant, were acquired from the Military Museum in Al-Qala, Egypt. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy were used to characterize the spearheads chemical composition and microstructure (EDX). The spearheads were determined to be constructed of steel and to have a coating of ferric oxide and other corrosion products on their exteriors. After that, a flawless polyaniline coating was electrochemically deposited onto the spearpoints in a way that was both quick and cheap. Many types of corrosion tests, such as electrochemical impedance spectroscopy and potentiodynamic polarization (PDP) readings, were used to determine the coating’s effectiveness. The steel spearheads’ findings revealed a significant improvement in their resistance to corrosion after being coated with flawless polyaniline. The coating served as a barrier, blocking out water and other corrosive substances and slowing the buildup of corrosion byproducts on the spearpoints. In conclusion, our research shows that a flawless polyaniline coating may be an effective anti-corrosion treatment for ancient steel artifacts. The approach is straightforward, cheap, and readily scalable for massive conservation efforts.

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“…Geometry optimization and quantum chemical calculations for the three GI-surfactants were obtained in a vacuum and solvated phases with convergence tolerance of medium quality using VAMP module. Based on density functional theory (DFT) [22], the chemical parameters were attained from the Hamiltonian neglect of diatomic differential overlap (NDDO) with the parameterized element modified neglect of differential overlap (MNDO) using BIOVIA Materials Studio 17.1.0.48 software. The calculated parameters embrace the energy of highest occupied molecular orbital (EHOMO, eV), energy of lowest unoccupied molecular orbital (ELUMO, eV), energy gap (ΔE, eV = ELUMO− EHOMO), electron affinity (A), ionization potential (I), electronegativity (), softness (σ), hardness (η) and number of the electron transferred (∆N) [23].…”

Section: Computational Studiesmentioning

confidence: 99%

Experimental and theoretical insights into synthesized Gemini corrosion inhibitor for X65-steel in 1M HCl

Abdu

elbasiony

Migahed³

et al. 2022

Egypt. J. Chem.

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Three Gemini cationic surfactants (GI-surfactants) of different hydrophobic chain lengths based on di-imine compound, abbreviated as GI-6, GI-12 and GI-14, were synthesized and characterized using FT-IR and 1 HNMR. The surface-active parameters calculated in acidic media were discussed. The inhibition performance of GI-surfactants for X65-steel corrosion was assessed by weight loss and electrochemical techniques in 1M HCl and was accompanied by surface analysis and theoretical studies. The resistance of X65-steel was enhanced to nearly ⁓764 ohm.cm 2 after adding 1x10 -3 M of GI-14. This inferred a protective film formation on the X65-steel surface via adsorption phenomena that followed the Langmuir isotherm. The GIsurfactants' inhibition efficiency exceeded 95% at room temperature and 93 % at 328 K owing to the electron-rich centers' presence in their chemical structures. The relation between the prepared GI-surfactants molecular structures and their corrosion inhibition performance was studied theoretically based on DFT and MCs methods. The safeguard effect of GI-surfactants was confirmed by SEM and EDX. The comparison study between the GI-surfactants' performance and the previously reported compounds confirmed their high potential applications as corrosion inhibitors.

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Effect of Magnetic Treatment of Potable Water in Looped and Dead End Water Networks

Cited by 11 publications

References 30 publications

A Review on: Biocidal Activity of Some Chemical Structures and Their Role in Mitigation of Microbial Corrosion

A Review on: Biocidal Activity of Some Chemical Structures and Their Role in Mitigation of Microbial Corrosion

Flawless polyaniline coating for preservation and corrosion protection of ancient steel spearheads: an archaeological study from military museum, Al-Qala, Egypt

Experimental and theoretical insights into synthesized Gemini corrosion inhibitor for X65-steel in 1M HCl

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