Buscar
Mostrando ítems 1-10 de 295
Thin films produced on 5052 aluminum alloy by plasma electrolytic oxydation with red mud-containing electrolytes
(Univ Fed Sao Carlos, Dept Engenharia Materials, 2014-11-01)
In this paper, we propose the production of ceramic protective thin films by plasma electrolytic oxidation using red mud-containing electrolytes. The treatments were performed through the application of pulsed voltage (600 ...
Mud Volcano. Trinidad, West Indies
(Pereira and Co., Ltd., Trinidad, 2010-03-31)
Description at back: “This active bustling freak of nature is a source of amazement to young and old alike.” This photograph which was taken circa 1960s to 1990s features a man wearing a red shirt stooping investigating ...
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment
(2016-03-01)
Brazil is the third-largest producer of aluminium, with the red mud generated during the extraction of aluminium from bauxite through the Bayer process. The red mud has been studied for use as an adsorbent for removing of ...
Adsorption of Ni(II), Pb(II) and Zn(II) on Ca(NO3)2-Neutralised Red Mud
(2017-01-01)
This study aimed to investigate a novel method of red mud neutralisation by Ca(NO3)2 (NRM), keeping its adsorption capacity in relation to natural red mud (RM) for Ni(II), Pb(II) and Zn(II). Results pointed out that the ...
Use of red mud activated at different temperatures as a low cost adsorbent of reactive dyeUso de lama vermelha ativada em diferentes temperaturas como um adsorvente de baixo custo de corante reativo
(2021-01-01)
Red mud, a waste product generated during alumina extraction from bauxite, could be used as a low-cost adsorbent. Here, the effect of thermal treatment on the adsorption of Reactive Blue 19 (RB19) dye by red mud was compared ...
Adsorption of reactive dye on seawater-neutralised bauxite refinery residue
(2013-02-11)
This investigation has demonstrated the need for thermal treatment of seawater neutralised red mud (SWRM) in order to obtain reasonable adsorption of Reactive Blue dye 19 (RB 19). Thermal treatment results in a greater ...
Adsorption of reactive dye on seawater-neutralised bauxite refinery residue
(2013-02-11)
This investigation has demonstrated the need for thermal treatment of seawater neutralised red mud (SWRM) in order to obtain reasonable adsorption of Reactive Blue dye 19 (RB 19). Thermal treatment results in a greater ...
Thin films produced on 5052 aluminum alloy by plasma electrolytic oxydation with red mud-containing electrolytes
(Univ Fed Sao Carlos, Dept Engenharia Materials, 2015)
Feasibility of RF Sputtering and PIIID for production of thin films from red mud
(ABM, ABC, ABPol, 2014-10-01)
During the extraction of aluminum from bauxite, a waste of oxides containing traces of heavy metals in a highly alkaline matrix, called Red Mud (RM), is produced. In this study RM is characterized and the feasibility of ...
Precipitation as the main mechanism for Cd(II), Pb(II) and Zn(II) removal from aqueous solutions using natural and activated forms of red mud
(2021-07-01)
The red mud (RM) has been used as an alternative low-cost adsorbent to remove trace elements, with the adsorption onto sodalite surface described as the main removal mechanism for trace elements. However, recent studies ...