Estudo sobre a utilização da lama vermelha para a remoção de corantes em efluentes têxteis

Filho, Ernesto Batista da Silva; Alves, Maria da Glória; Motta, M.; Oliveira, Eveline Haiana da Costa; Brander, Walter

doi:10.1590/s0100-40422008000500008

Cited by 6 publications

(5 citation statements)

References 24 publications

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“…Red mud has also been investigated in several environmental remediation processes such as adsorbent for organic contaminants (e.g. phenol [10] and dyes [11]) and inorganic compounds (e.g. phosphates and arsenic from acid drainage [12,13] and heavy metal from contaminated soils [14]).…”

Section: Introductionmentioning

confidence: 99%

Production of nanostructured magnetic composites based on Fe0 nuclei coated with carbon nanofibers and nanotubes from red mud waste and ethanol

Oliveira

Tristão

Ardisson

et al. 2011

Applied Catalysis B: Environmental

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Section: Introductionmentioning

confidence: 99%

Production of nanostructured magnetic composites based on Fe0 nuclei coated with carbon nanofibers and nanotubes from red mud waste and ethanol

Oliveira

Tristão

Ardisson

et al. 2011

Applied Catalysis B: Environmental

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“…Since there is no feasible way to recover large amounts of this waste [6, 7], red mud is disposed of in tailings dams. Despite the constant risk of failure of these dams, this disposal can cause soil and water contamination [8,9]. The composite made of epoxy resin and glass fibre is the primary material to produce the modern wind turbine blades.…”

Section: Introductionmentioning

confidence: 99%

New Polymer Composites Made of Recycled Polystyrene with Red Mud and Wind Blade Waste: An Industrial Ecology Case

Barbosa

Mancini

Belli³

et al. 2022

MSF

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The development of composites with the waste of industries close to each other would mean an interesting case of industrial symbiosis in search for using less financial and natural resources. This paper presents the development of polymer composites made of three types of waste, produced by industries located in the same region and distant at most 25 km from each other: electronic waste, red mud (obtained during aluminium production), and the waste of wind turbine blades' manufacturing (epoxy resin/glass fibre). Composites were obtained incorporating 5%, 10%, and 15% of industrial waste (red mud and epoxy/fibre) in a matrix of recycled high-impact polystyrene (HIPS) from discarded electronic equipment. Tests were performed to obtain the melt flow index and the composites' water content and study the mechanical properties (tensile and impact) of test specimens produced with the composites by injection moulding (temperature from 200 to 250°C, the injection pressure of 45 MPa, and the injection time of 2.5 s). Results showed that the composites have water content and melt flow index within the specifications for recycled HIPS and are usually more rigid than it, reaching values for Elasticity Modulus up to 34% higher. Therefore, these composites can be applied when materials with more stiffness than HIPS are required.

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“…The first report of red mud used as a dye adsorbent was by Namasivayam and Arasi (1997). After that, many studies have used red mud as an adsorbent of different dyes (NAMASIVAYAM; YAMUNA; ARASI, 2001ARASI, , 2002SAINI, 2004;WANG et al, 2005;TOR;CENGELOGLU, 2006;SILVA FILHO et al, 2008;WANG et al, 2009;NOROUZI;BADII;ARDEJANI, 2010;BHATNAGAR et al, 2011;RATNAMALA;SHETTY;SRINIKETHAN, 2012;ANTUNES;SHIRZAD-SIBONI et al, 2014;JESUS et al, 2015;SAHU;SAHU;PATEL, 2015;OLIVEIRA et al, 2016;BACIOIU et al, 2017). To our best knowledge, however, there are no extant reports on the effects of thermal treatment on bauxite refinery residue as a reactive dye adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Use of red mud activated at different temperatures as a low cost adsorbent of reactive dye

Antunes

Conceição

Navarro

et al. 2021

Eng. Sanit. Ambient.

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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 with the adsorption capacity of untreated red mud. Thermal treatment of red mud at 500°C results in an increase in adsorption capacity from 357 mg g-1 (untreated red mud) to 416 mg g-1, under acidic conditions. Red mud samples thermally treated at 600°C and 800°C show a reduction in adsorption capacity, however, falling to 337 mg g-1, in acid medium. The change in the maximum adsorption capacity of red mud to RB19 following thermal treatment is associated with specific surface area. Red mud subjected to 500°C can be used for the treatment of water and wastewaters with a higher efficiency than untreated red mud, thus finding possible application in the textile industry.

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Estudo sobre a utilização da lama vermelha para a remoção de corantes em efluentes têxteis

Cited by 6 publications

References 24 publications

Production of nanostructured magnetic composites based on Fe0 nuclei coated with carbon nanofibers and nanotubes from red mud waste and ethanol

Production of nanostructured magnetic composites based on Fe0 nuclei coated with carbon nanofibers and nanotubes from red mud waste and ethanol

New Polymer Composites Made of Recycled Polystyrene with Red Mud and Wind Blade Waste: An Industrial Ecology Case

Use of red mud activated at different temperatures as a low cost adsorbent of reactive dye

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