Removal of Chlorophenols from Wastewater Using Red Mud:  An Aluminum Industry Waste

2004 ◽  
Vol 38 (14) ◽  
pp. 4012-4018 ◽  
Author(s):  
V. K. Gupta ◽  
I. Ali ◽  
V. K. Saini
Keyword(s):  
Red Mud ◽  
Aluminum Industry ◽  
Industry Waste

scholarly journals Fe(ii) and Mn(ii) removal by Ca(ii)–manganite (γ-MnOOH)-modified red mud granules in water

RSC Advances ◽  
2019 ◽  
Vol 9 (18) ◽  
pp. 10305-10313 ◽  
Author(s):  
Yingying Su ◽  
Qi Zhu ◽  
Jian Li ◽  
Dongdong Wang ◽  
Zipeng Xing ◽  
...  
Keyword(s):  
Red Mud ◽  
Aluminum Industry ◽  
Underground Water

The use of the waste of aluminum industry to prepare effective polluted materials for the treatment of underground water.

Development of advanced, non-toxic, synthetic radiation shielding aggregate

2018 ◽  
Vol 106 (1) ◽  
pp. 59-68 ◽  
Author(s):  
Manish Mudgal ◽  
Ramesh Kumar Chouhan ◽  
Sarika Verma ◽  
Sudhir Sitaram Amritphale ◽  
Satyabrata Das ◽  
...  
Keyword(s):  
Red Mud ◽  
Nuclear Power ◽  
Power Plants ◽  
Xrd Analysis ◽  
Radiation Shielding ◽  
Industry Waste ◽  
Hematite Ore ◽  
First Time ◽  
Different Sources ◽  
Aggregate Impact Value

AbstractFor the first time in the world, the capability of red mud waste has been explored for the development of advanced synthetic radiation shielding aggregate. Red mud, an aluminium industry waste consists of multi component, multi elemental characteristics. In this study, red mud from two different sources have been utilized. Chemical formulation and mineralogical designing of the red mud has been done by ceramic processing using appropriate reducing agent and additives. The chemical analysis, SEM microphotographs and XRD analysis confirms the presence of multi-component, multi shielding and multi-layered phases in both the different developed advance synthetic radiation shielding aggregate. The mechanical properties, namely aggregate impact value, aggregate crushing value and aggregate abrasion value have also been evaluated and was compared with hematite ore aggregate and found to be an excellent material useful for making advanced radiation shielding concrete for the construction of nuclear power plants and other radiation installations.

Selected applications of Rietveld-XRD analysis for raw materials of the aluminum industry

2013 ◽  
Vol 28 (2) ◽  
pp. 112-123 ◽  
Author(s):  
Frank R. Feret
Keyword(s):  
Red Mud ◽  
Aluminum Industry ◽  
Raw Materials ◽  
Rietveld Method ◽  
Xrd Analysis ◽  
Rietveld Analysis ◽  
Quantitative Phase Analysis ◽  
Calibration Methods ◽  
Phase Quantification ◽  
The Aluminum Industry

In the last few decades, X-ray diffraction (XRD) systems have been paramount and irreplaceable in controlling bauxite exploration, as well as Bayer and reduction processes. XRD quantitative phase analysis in the aluminum industry witnessed a steady deployment of the Rietveld method, which at present progressively replaces existing methodologies in research and plant laboratories. Rietveld analysis not only helped to surpass traditional XRD calibration methods, it also opened the door for new applications previously not possible. The use of the Rietveld method to characterize selected materials unique to the aluminum industry, such as bauxite, red mud, and alumina is demonstrated and discussed. This paper also presents how synchrotron-based diffractograms obtained for bauxite and red mud samples allowed a much better understanding of mineralogical representation, and made it possible to leverage their Rietveld quantification. Despite clear advantages, the Rietveld method also has limitations that are revealed. For alumina phase quantification, a dedicated Rietveld analytical program was built with structure data for eight alumina mineralogical phases: alpha, beta (β-Al2O3 = Na2O•11Al2O3), delta, gamma (2), kappa, sigma, and theta. The paper gives unique examples of phase quantification in aluminas of various origins and phase composition.

scholarly journals Influence of Albite Activator in Geopolymerisation of Slag Wastes from Iron and Aluminium Industry

2020 ◽  
Vol 9 (4) ◽  
pp. 2326-2329
Keyword(s):  
Alkaline Medium ◽  
Red Mud ◽  
Aluminum Industry ◽  
Raw Materials ◽  
Polymer Structure ◽  
Geopolymer Concrete ◽  
Iron Industry ◽  
Conventional Concrete ◽  
Aluminium Industry

Geopolymerization mechanism involves the reaction between materials rich in silica and alumina in the presence of alkaline medium to form a polymer structure. Present study involves in usage of the raw materials, which are the waste slag products from iron industry (GGBS) and aluminum industry (RED MUD – RM) in the various proportions of RM: GGBS as 0:100,25:75,50:50,75: 25,100:0 in presence of albite activator(AA) and NaOH which initiates polymerization and finally resulted in obtaining geopolymer concrete(GPC). Various experiments were conducted to analyze the mechanical and microstructure performance of the obtained GPC and therefore compared with the normal conventional concrete. Results showed that with 0% RM and 100% GGBS performs best when compared to Normal conventional concrete(NCC).

Experiments on Effect of Red Mud-Based Slag on Distribution of Sulfur in Liquid Iron

2014 ◽  
Vol 900 ◽  
pp. 49-52
Author(s):  
Gui Fang Zhang ◽  
Ying Dong Yang ◽  
Zhe Shi ◽  
Lei Gao
Keyword(s):  
Red Mud ◽  
Aluminum Content ◽  
Aluminum Industry ◽  
Sulfur Reduction ◽  
Viable Option ◽  
Refining Steel ◽  
Steel Refining ◽  
The Aluminum Industry ◽  
Increasing Temperature ◽  
Fluxing Agent

Preliminary research has shown that red mud is a viable option to be used as a fluxing agent in the steelmaking process, as it is able to achieve similar results as fluxes currently used in steel refining. This research focused on how red mud can be used as a flux for refining steel. Desulfurization was conducted with aluminum additions and temperature variations. The results showed that experiments utilized waste residues from the aluminum industry as refining flux for steel refining; more than 95% sulfur reduction was achieved; increasing temperature and aluminum content can improve desulfurization.

Sign in / Sign up

Export Citation Format

Share Document