The Experts below are selected from a list of 7866 Experts worldwide ranked by ideXlab platform
Do Binh Minh - One of the best experts on this subject based on the ideXlab platform.
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simultaneous degradation of 2 4 6 trinitrophenyl n methylnitramine tetryl and hexahydro 1 3 5 trinitro 1 3 5 triazine rdx in polluted wastewater using some advanced oxidation processes
Journal of Industrial and Engineering Chemistry, 2014Co-Authors: Do Ngoc Khue, Nguyen Van Chat, Vu Quang Bach, Do Binh MinhAbstract:Abstract Here we report the study on the utilization of several advanced oxidation processes such as electro-oxidation and Fenton process in simultaneous treatment of two nitramine explosives: 2,4,6-trinitrophenyl-N-metylnitramine (Tetryl) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX). The preliminary tests indicated that the Electrolytic Method using a TiO 2 /IrO 2 /RuO 2 -coated electrode could rapidly degrade Tetryl but not RDX. While the addition of certain amount of H 2 O 2 induced an increase of Tetryl degradation yield but had insignificant effect on RDX decomposition, the use of Fenton's reagent showed an enhanced efficiency in degradation of both nitramines. It can be concluded that among tested processes, Fenton process is the most effective for treatment of nitramine-containing wastewaters.
Do Ngoc Khue - One of the best experts on this subject based on the ideXlab platform.
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simultaneous degradation of 2 4 6 trinitrophenyl n methylnitramine tetryl and hexahydro 1 3 5 trinitro 1 3 5 triazine rdx in polluted wastewater using some advanced oxidation processes
Journal of Industrial and Engineering Chemistry, 2014Co-Authors: Do Ngoc Khue, Nguyen Van Chat, Vu Quang Bach, Do Binh MinhAbstract:Abstract Here we report the study on the utilization of several advanced oxidation processes such as electro-oxidation and Fenton process in simultaneous treatment of two nitramine explosives: 2,4,6-trinitrophenyl-N-metylnitramine (Tetryl) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX). The preliminary tests indicated that the Electrolytic Method using a TiO 2 /IrO 2 /RuO 2 -coated electrode could rapidly degrade Tetryl but not RDX. While the addition of certain amount of H 2 O 2 induced an increase of Tetryl degradation yield but had insignificant effect on RDX decomposition, the use of Fenton's reagent showed an enhanced efficiency in degradation of both nitramines. It can be concluded that among tested processes, Fenton process is the most effective for treatment of nitramine-containing wastewaters.
Jingsong Liang - One of the best experts on this subject based on the ideXlab platform.
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electrochemical destruction of dinitrotoluene isomers and 2 4 6 trinitrotoluene in spent acid from toluene nitration process
Journal of Hazardous Materials, 2009Co-Authors: Wenshing Chen, Jingsong LiangAbstract:Mineralization of dinitrotoluene (DNT) isomers and 2,4,6-trinitrotoluene (TNT) in spent acid was conducted by in situ electrogenerated hydrogen peroxide. The Electrolytic experiments were carried out to elucidate the influence of various operating parameters on the performance of mineralization of total organic compounds (TOC) in spent acid, including electrode potential, reaction temperature, oxygen dosage and concentration of sulfuric acid. It is worth noting that organic compounds could be completely mineralized by hydrogen peroxide obtained from cathodic reduction of oxygen, which was mainly supplied by anodic oxidation of water. Based on the spectra identified by gas chromatograph/mass spectrometer (GC/MS), it is proposed that oxidative degradation of 2,4-DNT and/or 2,6-DNT, 2,4,6-TNT results in o-mononitrotoluene (MNT) and 1,3,5-trinitrobenzene, respectively. Due to the removal of TOC and some amount of water, the Electrolytic Method established is promising for industrial application to regeneration of spent acid from toluene nitration process.
Jing Guo - One of the best experts on this subject based on the ideXlab platform.
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Determination of non-metallic inclusions in a continuous casting slab of ultra-low carbon interstitial free steel by applying of metallographic Method, Electrolytic Method and RTO technique
Scientific reports, 2019Co-Authors: Jing Guo, Hanjie Guo, Shu-sen Cheng, Ya-guang MeiAbstract:Metallographic, Electrolytic Method and RTO(room temperature organic) technique were applied in the present study to more accurately determine non-metallic inclusion in a ultra-low carbon interstitial free(IF) steel and further to confirm their origination in a Compact Strip Production Process (CSP Process) continuous casting (CC) slab. Results show that inclusions detected by metallographic Method usually appear relative smaller size and are mainly Al2O3 based or TiN based in composition, whereas those extracted by Electrolytic Method usually have larger size and are much more calcium-silicate based in composition. In addition, inner structures of extracted inclusions were detected by applying of RTO technique. The large size calcium-silicate based inclusions are confirmed high possibilities originating from mold flux and/or tundish flux entrapment, which are less affected by the liquid steel composition; while the smaller ones are generally endogenous inclusion precipitating during the refining or solidification process that strongly depending on the liquid steel composition and temperature.
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Determination of Three-Dimensional Morphology and Inner Structure of Second-Phase Inclusions in Metals by Non-Aqueous Solution Electrolytic and Room Temperature Organic Methods
MDPI AG, 2018Co-Authors: Jing Guo, Hanjie Guo, Keming Fang, Yiwa Luo, Shengchao Duan, Xiao Shi, Wensheng YangAbstract:The secondary-phase particles in metals, particularly those composed of non-metallic materials, are often detrimental to the mechanical properties of metals; thus, it is crucial to control inclusion formation and growth. One of the challenges is determining the three-dimensional morphology and inner structures of such inclusions. In this study, a non-aqueous solution Electrolytic Method and a room-temperature organic technique were developed based on the principle of electrochemistry to determine the three-dimensional morphologies and inner structures of non-metallic inclusions in Al-killed steel, Si-killed steel, and ductile cast iron. The inclusions were first extracted without any damage to the inclusions, and then the collected inclusions were wrapped and cut through Cu ion deposition. The results revealed that the inclusions in Al-killed steel had an irregular morphology, that those in the Si-killed steel were mainly spherical, and that almost all the spheroidal graphite in the ductile cast iron featured a uniform globular morphology. In addition, nucleation was not observed in the inner structures of the inclusions in the Al-killed steel, while some dendritic or rod-like MnS phase precipitates appeared on the silicate inclusion surfaces, and some silicate-rich phases were detected in their inner matrix. For spheroidal graphite, rare-earth oxides (one particle or more) were observed as nuclei in the center of almost every graphite particle. The formation and evolution of inclusions in these types of metals can be better understood by means of the two developed Methods
Vu Quang Bach - One of the best experts on this subject based on the ideXlab platform.
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simultaneous degradation of 2 4 6 trinitrophenyl n methylnitramine tetryl and hexahydro 1 3 5 trinitro 1 3 5 triazine rdx in polluted wastewater using some advanced oxidation processes
Journal of Industrial and Engineering Chemistry, 2014Co-Authors: Do Ngoc Khue, Nguyen Van Chat, Vu Quang Bach, Do Binh MinhAbstract:Abstract Here we report the study on the utilization of several advanced oxidation processes such as electro-oxidation and Fenton process in simultaneous treatment of two nitramine explosives: 2,4,6-trinitrophenyl-N-metylnitramine (Tetryl) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX). The preliminary tests indicated that the Electrolytic Method using a TiO 2 /IrO 2 /RuO 2 -coated electrode could rapidly degrade Tetryl but not RDX. While the addition of certain amount of H 2 O 2 induced an increase of Tetryl degradation yield but had insignificant effect on RDX decomposition, the use of Fenton's reagent showed an enhanced efficiency in degradation of both nitramines. It can be concluded that among tested processes, Fenton process is the most effective for treatment of nitramine-containing wastewaters.