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Fan Cao, Peng Cao, Yangyang Li, Yi Wang, Lei Shi and Di Wu
The passivation of zinc alloy coating was achieved through the utilization of both silicate and trivalent chromium passivation systems, employing a specific process formula consisting of Co(NO3)2 at a concentration of 2.5 g/L, C76H52O46 at 3 mL/L, Na2SiO...
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Cristian Guilcaso, Leonidas Ramírez, Augusto Coque, Xavier Vaca, Diego Molina, Isaac Simbaña
In this research work it has been analyzed the influence of the Zinc chromate coating on the corrosion of ASTM A-500 and galvanized A-500 steels exposed in a salt spray corrosion chamber, according to the ASTM B117 Standard. Two surface cleaning methods ...
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Aurora Romar-Gasalla, Gustavo F. Coelho, Juan Carlos Nóvoa-Muñoz, Manuel Arias-Estévez, María J. Fernández-Sanjurjo, Esperanza Álvarez-Rodríguez, Avelino Núñez-Delgado
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Batch-type experiments were used to study As(V), Cr(VI), F-, and Ni2+ sorption/desorption on wheat straw. For the lowest concentration added (0.5 mmol·L-1), the sorption sequence was F- > Ni2+ > Cr(VI) >> As(V) (93%, 61%, 29%, 0.3%), but changed to Ni2+ ...
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Pieter J. Stuyfzand, Ebel Smidt, Koen G. Zuurbier, Niels Hartog and Mohamed A. Dawoud
To be able to overcome water shortages, Abu Dhabi Emirate started an Aquifer Storage and Recovery (ASR) project with desalinated seawater (DSW) as source water near Liwa. It is the largest DSW-ASR project in the world (stored volume ~10 Mm3/year), and sh...
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Ruohan Zhao, Patrick Rupper and Sabyasachi Gaan
Research on corrosion protection of aluminum has intensified over the past decades due to environmental concerns regarding chromate-based conversion coatings and also the higher material performance requirements in automotive and aviation industries. Pho...
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Prashant K. Jha, Gary P. Halada and Scott M. McLennan
A synthesized polymeric form of chitosan, electrochemically precipitated and photochemically modified, has been found to have significant value in removal of toxic chromate oxyanions from solution. Fourier Transform Infra-Red (FTIR), Raman and X-ray phot...
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