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  • Making The Most Of Red Mud - Chemical & Engineering News

    But for every ton of alumina extracted, more than a ton of red mud is produced. Bauxite processors recycle the caustic soda and pump the residual red sludge into huge settling ponds. When as much

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  • Red Mud, a Divided Settlement and the Toxic Waste

    2020-08-07· László Nagy recalls a red dust. Decades ago, it would settle on clothes hung out to dry and drift through open windows. The dust came from the waste reservoirs of a now-shuttered alumina

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  • 'Red Mud' in alumina production and how is it handled

    2016-08-22· Alumina production employs the Bayer's process which leaves behind a residue known as Red Mud. If the alumina extraction is done through any other process then the residue left behind is known as White Mud or Bellite. Over 95% of the alumina manufactured globally is derived from bauxite by the Bayer process.

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  • TENORM: Bauxite and Alumina Production Wastes | Radiation

    Red muds are caustic, and the United States does not currently approve any secondary use of the waste. The radioactivity content is only one of several concerns that pose a risk to the environment, as red muds also have a high salinity and pH. In some red mud samples, the EPA has identified elevated arsenic and chromium concentrations; in some cases, arsenic levels were as high as 16,000 parts

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  • Making The Most Of Red Mud | February 24, 2014 Issue - Vol

    Orbite is a Canadian company that produces alumina and other mineral products. They just received some patents for a process to treat red mud, a by-product of aluminium/alumina production. It

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  • Production – Red Mud Project

    2005-07-13· Red Mud is produced during the Bayer Process. With this process, we can extract the aluminum (oxy)hydroxides from bauxites and get alumina, which eventually can be

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  • Red Mud | Information | NPCS

    2013-12-19· The Bayer Process for the production of alumina from Bauxite ore is characterized by low energy efficiency and it results in the production of significant amounts of dust-like, high alkalinity bauxite residues known as red mud. Red mud or red sludge is a solid waste product of the Bayer process, the principal industrial means of refining bauxite in order to provide alumina as raw material

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  • Red mud (bauxite residue) – an unnecessary problem? - #

    2019-01-01· Global annual production of red mud However, the really big problem with bauxite residue is that there is so much of it. The enormous volumes of mud produced make the challenges and problems associated with its management, and the space it occupies, equally enormous. And while we surround ourselves with these great volumes, we are fully aware that technological solutions are

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  • Analysis on Physical and Mechanical Properties of Red Mud

    Various alumina factories in China discharge the red mud by "wetting process" at the initial production stage, that is, the liquid red mud with high water content is discharged into the red mud yard directly by the pipeline, and stacked at the bottom of red mud reservoir, to form a weak layer with big thickness and low strength. However, with the increase of red mud discharge amount, in

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  • Red mud (bauxite residue) – an unnecessary problem? - #

    2019-01-01· Global annual production of red mud However, the really big problem with bauxite residue is that there is so much of it. The enormous volumes of mud produced make the challenges and problems associated with its management, and the space it occupies, equally enormous. And while we surround ourselves with these great volumes, we are fully aware that technological solutions are

    Read More +
  • Synthesis and Properties of Red Mud-Based Nanoferrite Clinker

    Red mud, produced by the Bayer process, is an industrial waste obtained during the production of aluminum. For every ton of alumina produced, approximately 1.6 tons of red mud is released and it is estimated that more than 66 million tons of this waste is annually generated worldwide 1, 2]. The red mud is usually discharged into marine or disposed into land polluting the surrounding water

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  • Effect of red mud proportion on the strength and

    Red mud is an industrial waste produced during alumina production. For each ton of alumina production, 1.5 to 1.6 tons of red mud is produced5. Globally around 120 billion tons of red mud is produced yearly, and its utilization is very limited due to its high alkalinity6, 7. Usually, the pH8 of red mud ranges between 10 to 13. Because of this, red mud causes severe environmental issues when it

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  • Current Status of an Industrial Waste: Red Mud an Overview

    2017-09-01· Abstract: – Red mud is a solid residue Produced during the alumina production by the bayer process from bauxite. The red mud generated by this process is highly alkaline with pH usually ranging from 10 to 13. Due to its hazardous corrosive nature its posing a very serious and alarming environmental problem. Globally there are approximately 90 million tonnes of red mud being produced

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  • Red Mud Disposal: The Ecological Concern of Alumina

    2012-10-11· The refinery generating 2.0 to 2.5 tonnes of Red mud per tonne of alumina can be termed as Red Mud Plant in place of Alumina Plant. We never expect incorrect data from a Content Editor like you. Request to check and cross check the data / information from competent people before publishing any technical article as it may hurt the sentiments of Alumina Experts.

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  • Hungarian Alumina Refinery Disaster - What Exactly is This

    2010-10-07· Contamination is an interesting issue, MAL asserts the red mud is just a non toxic by-product of the refining process, produced as the alumina is precipitated out from a caustic soda solution.

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  • the red mud project creates ceramic tableware from

    2019-03-21· red mud, also known as bauxite residue, is a by-product of refining bauxite ore into alumina, the precursor to aluminium. the material is made

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  • Hindalco to supply 1.2 million tonnes of red mud to

    2020-08-20· Hindalco Industries, an Aditya Birla Group company, has entered into an MoU with UltraTech Cement, part of the same group, to deliver 1.2 million tonnes (mt) of red mud

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  • Chinese outages a reminder of aluminum's dirty secret

    RED MUD. Most of the world's refineries use the Bayer process to extract alumina from bauxite. The waste product is red mud, a mix of un-dissolved alumina, iron oxide, silicon oxide, titanium

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  • Red mud: Toxic waste of aluminum refining | CBC News

    Red mud is a toxic byproduct of the industrial process that refines bauxite, raw aluminum ore, into aluminum oxide, or alumina. (Alumina is put through a separate process, electrolysis, to make

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  • Aluminium production & environmental impact

    'In October 2010, approximately one million cubic meters of red mud from an alumina plant near Kolontar in Hungary was accidentally released into the surrounding countryside in the Ajka alumina plant accident, killing ten people and contaminating a large area. All life in the Marcal river was said to have been "extinguished" by the red mud, and within days the mud had reached the Danube

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Is there any harm to the red mud produced by alumina production

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