Three-dimensional electro-Fenton degradation of ciprofloxacin catalyzed by CuO doped red mud particle electrodes: Electrodes preparation, kinetics and mechanism

2022 ◽  
pp. 107151
Author(s):  
Caiping Lu ◽  
Guangtao Wei ◽  
Jinshuai Ba ◽  
Qingyong Li ◽  
Linye Zhang ◽  
...  
Keyword(s):  
Red Mud ◽  
Three Dimensional ◽  
Kinetics And Mechanism

scholarly journals Polyurethane/Red Mud Composites with Flexibility, Stretchability, and Flame Retardancy for Grouting

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 906 ◽  
Author(s):  
Chunjing Zhang ◽  
Bo Shuai ◽  
Xuefeng Zhang ◽  
Xinxin Hu ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Flame Retardancy ◽  
Red Mud ◽  
Three Dimensional ◽  
Engineering Application ◽  
Synergistic Interactions ◽  
Grouting Material ◽  
Dimensional Network ◽  
Grouting Materials ◽  
Inorganic Composite

Flexibility, stretchability, and flame retardancy are of ever increasing importance in constructing grouting materials. Herein, a simple and effective strategy to make organic-inorganic composite grouting material in a “flexible, stretchable, and flame retardant” way was based on the excellent synergistic interactions among polyurethane prepolymer, red mud, polyethylene glycol, and trimethylolpropane. The resultant polyurethane/red mud composite grouting material with three-dimensional network structure presented a favorable flexibility, desirable compressive strength of 29.2 MPa at 50% compression state, and a good elongation at 15.1%. The grouting material was mainly composed of amorphous polyurethane and crystalline red mud, and its probable formation mechanism was reaction of prepolymer with H2O, polyethylene glycol and trimethylolpropane under vigorous stirring in the presence of catalyst. Furthermore, the grouting material possessed favorable thermal stability, flame retardancy and repairment performance for roadway cracks. This work may open a simple and convenient avenue for the massive engineering application of red mud and preparation of flexible organic-inorganic hybrid grouting material.

scholarly journals The developement of red mud flood environmental information system and the methodology for the spatial analysis of the degraded area

2015 ◽  
Vol 9 (1) ◽  
pp. 1-11
Author(s):  
Gábor Bakó ◽  
Gábor Kovács ◽  
Zsolt Molnár ◽  
Judit Kirisics ◽  
Eszter Góber ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Spatial Resolution ◽  
Red Mud ◽  
High Spatial Resolution ◽  
Three Dimensional ◽  
Environmental Information ◽  
Evaluation Methodology ◽  
Aerial Photogrammetry ◽  
Impact Area ◽  
The Impact

The red mud disaster occurred on 4th October 2010 in Hungary has raised the necessity of rapid intervention and drew attention to the long-term monitoring of such threat. Both the condition assessment and the change monitoring indispensably required the prompt and detailed spatial survey of the impact area. It was conducted by several research groups - independently - with different recent surveying methods. The high spatial resolution multispectral aerial photogrammetry is the spatially detailed (high resolution) and accurate type of remote sensing. The hyperspectral remote sensing provides more information about material quality of pollutants, with less spatial details and lower spatial accuracy, while LIDAR ensures the three-dimensional shape and terrain models. The article focuses on the high spatial resolution, multispectral electrooptical method and the evaluation methodology of the deriving high spatial resolution ortho image map, presenting the derived environmental information database

Three-dimensional radical polymerization

e-Polymers ◽  
2002 ◽  
Vol 2 (1) ◽  
Author(s):  
Gennadii V. Korolev ◽  
Maria L. Bubnova
Keyword(s):  
Radical Polymerization ◽  
New Technologies ◽  
Three Dimensional ◽  
Recent Decade ◽  
Kinetics And Mechanism ◽  
Principal Characteristics ◽  
Analytical Review ◽  
Engineering Information ◽  
Nmr Diffusion ◽  
Reaction Media

AbstractThis is an analytical review on kinetics and mechanism of threedimensional radical polymerization (TDRP) of multifunctional vinyl monomers (oligomers) having two or more double bonds per molecule. The period (1960 - 1977) of establishing the fundamental kinetic law of TDRP and the principal characteristics of its mechanism, i.e., microheterogeneity, is briefly described. New intense progress in the field of TDRP (during the recent decade) resulting from the development of new technologies based on this technique (fiber-optic engineering, information technology, etc.) has received much consideration. The methodological peculiarities of investigations on TDRP kinetics and mechanism, which are a result of the complex conditions of highly structured reaction media inherent in TDRP processes, are described. Particular attention is given to techniques of structuralphysical investigation (a consistent complex of methods including ESR, NMR, diffusion and radiation probing, mechanics and thermomechanics) sensitive to structural microheterogeneity in the range 10-6 - 10-4 cm. The perspectives of macromolecular design based on TDRP data are analyzed including latest approaches as the employment of a ‘living’ chain mode. This review covers three monographs in Russian, reflecting three sequential stages of TDRP development from 1960 till 1995 using acrylic oligomers as an example (most of the investigations were carried out at the Institute of Chemical Physics RAS). The bibliography includes 197 references.

scholarly journals Kinetics and mechanism of red mud in adsorption of ciprofl oxacin in aqueous solution

2017 ◽  
Vol 10 (1) ◽  
pp. 241-248 ◽  
Author(s):  
Davoud Balarak ◽  
Ferdos Kord Mostafapour ◽  
Ali Joghataei
Keyword(s):  
Aqueous Solution ◽  
Red Mud ◽  
Kinetics And Mechanism

Effect of Red Mud, Nano-Clay, and Natural Fiber on Fresh and Rheological Properties of Three-Dimensional Concrete Printing

2021 ◽  
Vol 118 (6) ◽  
Author(s):  
M. Sonebi ◽  
M. Dedenis ◽  
S. Amziane ◽  
A. Abdalqader ◽  
A. Perrot
Keyword(s):  
Rheological Properties ◽  
Red Mud ◽  
Natural Fiber ◽  
Three Dimensional ◽  
Nano Clay

Applying Study on the Bayer Red Mud as Fast Building Dam Materials

2013 ◽  
Vol 671-674 ◽  
pp. 1725-1728
Author(s):  
Dong Lan Luo
Keyword(s):  
Red Mud ◽  
Three Dimensional ◽  
Waste Materials ◽  
Geogrid Reinforcement ◽  
Tailing Dam ◽  
Bayer Red Mud ◽  
Dam Stability ◽  
The Way

In China, the soaring red mud needs outdoor place for stockpiling. The traditional building method of tailing dam is often construction dam only once, which needs the biggish piling up yard or quantities of dam. The construction-dam technology of “three-dimensional seepage drainage stack” was proposed, combining stereoscopic drainage discharging separated water and rainwater, geogrid reinforcement minishing fissured development and enhancing dam stability, and air dry in turn. Using bayer red mud to build dam quickly comes true. The experiment of the method was carried on and makes some conclusions through testing strength indexes: after depositing bayer red mud 4~5m heights continuously, and the ten-days air-curing drying, red-mud strength indices have been improved greatly and it can be used to damming. The way of “three-dimensional seepage drainage stack” makes good use of waste materials，reduces the yard space, saves the red mud rolling or compaction equipment, economizes the constructed cost of the dam. The process provides some references in the field of the bayer red mud as quick damming material in the practice.

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