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Geumhee Yun, Sunhwa Park, Young Kim and Kyungjin Han
Slow-releasing tablets combined with persulfate acting as an oxidant and ferrous iron acting as an activator were manufactured for in situ chemical oxidation. The trichloroethylene (TCE) removal efficiency according to the molar ratio of the oxidizer and...
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Fatemeh Jamali, Majid Seifi and Mohammad Bagher Askari
In this paper, for the first time, a CoNi2O4 nanocatalyst coated on the surface of activated carbon wheat husk (ACWH) was synthesized in the form of CoNi2O4/ACWH through a hydrothermal process. The electrocatalytic activity of this catalyst was evaluated...
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Sabrina Sorlini, Marco Carnevale Miino, Zdravka Lazarova and Maria Cristina Collivignarelli
Many technologies for the treatment of arsenic-containing drinking water are available, but most of them are more effective on arsenic oxidized forms. Therefore, the pre-oxidation of As3+ is necessary. The electrochemical processes represent a very promi...
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Júlio César Oliveira da Silva, Aline Maria Sales Solano, Inalmar D. Barbosa Segundo, Elisama Vieira dos Santos, Carlos A. Martínez-Huitle and Djalma Ribeiro da Silva
Oil leakage occurs at fuel service stations due to improper storage, which pollutes soil and, subsequently, can reach the groundwater. Many compounds of petroleum-derived fuels pose hazards to aquatic systems, and so must be treated to guarantee clean an...
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Miguel Ángel López Zavala and Eunice Espinoza Estrada
In this study, a novel electrochemical oxidation cell using stainless steel electrodes was found to be effective in oxidizing acetaminophen and its transformation products in short reaction times. Aqueous solutions of 10 mg/L-acetaminophen were prepared ...
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Miguel Ángel López Zavala and Eunice Espinoza Estrada
Pág. 1 - 12
In this study, a novel electrochemical oxidation cell using stainless steel electrodes was found to be effective in oxidizing acetaminophen and its transformation products in short reaction times. Aqueous solutions of 10 mg/L-acetaminophen were prepared ...
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Qinyue Lu, Weicheng Zong, Mingyixing Zhang, Zhi Chen and Zhangping Yang
Beta-oxidation(ß-oxidation) is an important metabolic process involving multiple steps by which fatty acid molecules are broken down to produce energy. The very long-chain fatty acids (VLCFAs), a type of fatty acid (FA), are usually highly toxic when fre...
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Zihao Wang and Tetsuo Shoji
Hydrogen plays various roles in metals or at metal?environment interfaces. Well known effects on metals are hydrogen embrittlement, hydrogen enhanced local plasticity, hydrogen enhanced strain-induced vacancy, hydrogen accelerated oxidation, hydrogen-ind...
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Pimin Zhang, Ru Lin Peng, Xin-Hai Li and Sten Johansson
MCrAlX (M: Ni or Co or both, X: minor elements) coatings have been used widely to protect hot components in gas turbines against oxidation and heat corrosion at high temperatures. Understanding the influence of the X-elements on oxidation behavior is imp...
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Pengzhang Li, Yun Wang, Yue Liu, Shuying Wang and Yongzhen Peng
Previous studies have highlighted the salinization caused by the use of seawater to flush toilets and industrial wastewater entering the urban wastewater systems in coastal areas. Thus, in this study, the effect of salinity on N2O emissions during the pa...
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Wojciech Szkliniarz, Grzegorz Moskal, Agnieszka Szkliniarz and Radoslaw Swadzba
One of the major barriers limiting the suitability of TiAl intermetallic alloys for use in the demanding aircraft and automotive industries is their susceptibility to degradation as a result of oxidation at temperatures exceeding 760 °C. Paper presents t...
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Jian Wang, Xiaohui Luo and Yanhua Sun
In this study, efforts were made to oxidize the Ti3SiC2 coating surface to improve its wear resistance by producing oxide layers and healing microcracks that initiated from the thermal sprayed process. Tribological behaviors of the thermal oxidation-trea...
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Cheng Zhang, Archana Loganathan, Benjamin Boesl and Arvind Agarwal
The thermogravimetric analysis on TaC, HfC, and their solid solutions has been carried out in air up to 1400 °C. Three solid solution compositions have been chosen: 80TaC-20 vol % HfC (T80H20), 50TaC-50 vol % HfC (T50H50), and 20TaC-80 vol % HfC (T20H80)...
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Muhammad Ali Abro and Dong Bok Lee
The 9Cr-1Mo steel (ASTM P91) was hot-dip aluminized, and its microstructural changes during oxidation were studied. Before oxidation, the coating consisted of (Al-rich topcoat containing a small amount of Al5Fe2 and Al13Fe4)/(Al13Fe4-rich, Al13Fe4-contai...
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Andri Cahyo Kumoro, Ratnawati Ratnawati, Diah Susetyo Retnowati
Pág. 236 - 245
The coupled hydrogen peroxide/ultraviolet irradiation (H2O2/UV) process as one of environmentally friendly advanced oxidation processes (AOPs) has been successfully applied in the oxidation of corn starch. The aim of this work was to develop a simplified...
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Hannah E. Roberts, Katherine Morris, J. Frederick W. Mosselmans, Gareth T. W. Law and Samuel Shaw
Fe(II) bearing iron (oxyhydr)oxides were directly co-precipitated with Np(V)O2+ under anaerobic conditions to form Np doped magnetite and green rust. These environmentally relevant mineral phases were then characterised using geochemical and spectroscopi...
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Hannah E. Roberts, Katherine Morris, J. Frederick W. Mosselmans, Gareth T. W. Law and Samuel Shaw
Fe(II) bearing iron (oxyhydr)oxides were directly co-precipitated with Np(V)O2+ under anaerobic conditions to form Np doped magnetite and green rust. These environmentally relevant mineral phases were then characterised using geochemical and spectroscopi...
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Poonam Yadav, Dong Bok Lee
Pág. 130 - 132
Titanium and titanium matrix composite reinforced with 10 vol. %(TiB+TiC) (10TMC) were oxidized at 700, 800 and 900 oC for 30, 50 and 70 h, and their oxidation behavior was studied. Oxidation of Ti and 10TMC in air led to the formation of rutile-TiO2 wit...
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Zuzana Morávková, Ivana ?edenková and Patrycja Bober
There are several types of aniline oligomers that can be formed in the early stages of aniline oxidation: linear oligomers with repeating units joined in para positions, and various branched and polycyclic oligomers, being the two most important groups. ...
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Marco Rotiroti, Rasmus Jakobsen, Letizia Fumagalli and Tullia Bonomi
The reductive dissolution of Fe-oxide driven by organic matter oxidation is the primary mechanism accepted for As mobilization in several alluvial aquifers. These processes are often mediated by microorganisms that require a minimum Gibbs energy availabl...
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