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Gibson Rocha Meira, Pablo Ramon Ferreira and Carmen Andrade
Surface chloride concentration (Cs) is a key parameter used to feed models adopted to simulate chloride penetration into concrete and evaluate the initial period of corrosion. Although there are several models that have been proposed for the representati...
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Panagiota T. Dalla, Ilias K. Tragazikis, Dimitrios A. Exarchos, Konstantinos G. Dassios, Nektaria M. Barkoula and Theodore E. Matikas
The study investigates the effect of carbon nanotubes on chloride penetration in nano-modified mortars and reports on the physical, electrical, and mechanical performance of the material. Mortars were artificially corroded and their surface electrical su...
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Lingjie Wu, Chenchi Jiang, Weiqiang Wang, Xiang Gao and Yufeng Xia
In contrast to the marine environment, coastal regions encompass substantial saline soils characterized by complex corrosive chemical compositions. This poses notable challenges to the durability of concrete structures erected in coastal dredger fill sil...
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Jakob Benisch, Björn Helm, Xin Chang and Peter Krebs
The European Union Water Framework Directive (2000/60/EC; WFD) aims to achieve a good ecological and chemical status of all bodies of surface water by 2027. The development of integrated guidance on surface water chemical monitoring (e.g., WFD Guidance D...
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Nikolai Gomelya,Inna Trus,Olena Stepova,Oleksandr Kyryliuk,Olena Ivanenko,Anna Homenko
Pág. 28 - 33
Corrosion elimination implies the application of corrosion-resistant alloys, which is associated with high costs and is not a reliable enough technique, as well as corrosion inhibitors, which need to be constantly improved to improve their efficiency and...
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Bahdja Hayoun, Mustapha Bourouina, Marta Pazos, Mª Angeles Sanromán and Saliha Bourouina-Bacha
The adsorption capacity of the medication methylthioninium chloride (MC) from aqueous solution onto sunflower seed shells (SSS), a low cost and abundant alternative adsorbent, was investigated in a batch system. The surface properties of the adsorbent we...
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Thomas Ziegenhein, Dirk Lucas, Giorgio Besagni and Fabio Inzoli
The bubble shape influences the transfer of momentum and heat/mass between the bubble and the surrounding fluid as well as the flow field around the bubble. The shape is determined by the interaction of the fluid field in the bubble, the physics on the s...
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Ahmed Ahmed, Gamal A. El-Hiti, Angham G. Hadi, Dina S. Ahmed, Mohammed A. Baashen, Hassan Hashim and Emad Yousif
This study develops a process for enhancing the photostabilization of PVC films blended with a low concentration of mefenamate?tin complex. One tri-substituted and three di-substituted organotin complexes containing mefenamate unit are synthesized, and t...
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Hung-Yu Chen and Shih-Zhe Huang
The South China Sea (SCS) is one of the world’s largest oligotrophic marginal seas. Increases in biomass and primary production in the surface layer of the northern SCS are affected by anthropogenic aerosol use among north Asian peoples. The season...
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Aisha Khan Khanzada, Muhammad Rizwan, Hussein E. Al-Hazmi, Joanna Majtacz, Tonni Agustiono Kurniawan and Jacek Makinia
Arsenic (As) is a prominent carcinogen component produced via both geogenic and anthropogenic processes, posing serious risks to human health. This study aimed to investigate the potential of hydrochar prepared from red macroalgae for removing As from sy...
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Changwei Su, Linfu Zhao, Liang Tian, Bixia Wen, Mingwu Xiang, Wei Bai and Junming Guo
This work presents the rapid electrodeposition of Fe–Ni alloy foils from chloride baths containing trivalent iron ions at a low pH (<0.0). The effect of the concentration of Ni2+ ions on the content, surface morphology, crystal structure, and te...
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Nur Adliani
Pág. 40 - 43
Conventional drug delivery systems have a shorter residence time in the stomach that causes less optimal drug absorption, the presence of food in the stomach also affects the absorption of the drug in the gastrointestinal tract so that it takes a drug th...
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Jiaying Wang, Tao Tao and Hexiang Yan
In order to describe iron stability in plastic pipes and to ensure the drinking water security, the influence factors and rules for iron adsorption and release were studied, dependent on the Unplasticized poly (vinyl chloride) (PVC-U) drinking pipes empl...
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Ahmed Mohamed, Ahmed Asmoay, Saad S. Alarifi and Musaab A. A. Mohammed
Forty-eight water samples (30 groundwater and 18 surface water samples) were collected from the study region. Physical and chemical examinations were performed on the water samples to determine the values of various variables. Several graphs, sheets, and...
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Raquel Ibarra, Darío Bolaños-Guerrón and Luis Cumbal-Flores
This study evaluates the pollution of the Machángara River basin in Ecuador. For the assessment, water samples were pumped from the river for 1 to 4 h, with a representative water sample of 4 L collected. In the site and laboratory, the physicochemical p...
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Feleke K. Sishu, Seifu A. Tilahun, Petra Schmitter and Tammo S. Steenhuis
Nitrate is globally the most widespread and widely studied groundwater contaminant. However, few studies have been conducted in sub-Saharan Africa, where the leaching potential is enhanced during the rainy monsoon phase. The few monitoring studies found ...
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Frazer Brownlie, Trevor Hodgkiess, Alastair Pearson and Alexander Galloway
The main objective of this study was to assess the influence of salt concentration on the corrosion behaviour, including the role of hydrodynamic conditions, of two broad classes of ferrous engineering materials. These are comprised of alloys, typified b...
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Naseeba Parveen and Sudha Goel
Around the world, coastal groundwater is increasingly subject to seawater intrusion (SWI). The quality and characteristics of such waters differ from those of surface and groundwater. In the current study, trihalomethane (THM) formation under varying lev...
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Yue Li, Youliang Chen, Wei Shao, Juhui Zhang, Shaoming Liao and Tomas Manuel Fernandez-Steeger
High temperatures can enhance the chloride diffusion coefficient and this poses a threat to reinforced concrete (RC) piles. This study intends to propose predictive models that can evaluate the service life and lateral bearing behaviour of reinforced con...
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Benjamin Maas, Eric W. Peterson, Joe Honings, Andrew Oberhelman, Prince Oware, Ian Rusthoven and Andrew Watson
Surface water?groundwater interaction within a karstic system enhances contaminant transport, making karst aquifers susceptible to anthropogenic practices. Contaminated waters related to agricultural and animal husbandry in northwestern Illinois (USA) pr...
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