eer-2019-374.pdf (418.17 kB)
Application of modified red mud in environmentally-benign applications: A review paper
journal contribution
posted on 2020-05-11, 12:45 authored by Collin G Joseph, Yun Hin Taufiq-Yap, Vigneswar Krishnan, Gianluca Li-PumaRed mud (RM) is a waste product that results from bauxite refining via the Bayer process. Its disposal remains an issue which raises significant environmental concerns, particularly if disposed on land or water bodies. Much research has been done on the use of red mud for environmentally-benign applications such as wastewater treatment, catalysis, the production of construction materials and glass ceramics, and for the recovery of metals. This paper reviews the current efforts made in the utilization of red mud as a valuable industrial by-product, which in turn should minimize its harmful impact on the environment. This detailed review compiles and highlights a variety of novel applications of modified red mud as a coagulant, an adsorbent for wastewater treatment, as well as, its use in catalytic processes and in building materials. The physico-chemical properties of red mud can be tuned by a range of treatment methods include acidification, neutralization and heat treatment. As revealed from the literature reviewed, modifications on red mud for the removal of various types of contaminants have shown promising results. However, further amendment and modifications on red mud are needed to utilize this industrial waste in many other industrial applications.
Funding
Research Management Centre, Universiti Putra Malaysia in collaboration with the Centre for Research & Innovation of Universiti Malaysia Sabah (Grant No. RACE0008-ST-2013).
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Published in
Environmental Engineering ResearchVolume
25Issue
6Pages
795 - 806Publisher
Korean Society of Environmental EngineersVersion
- VoR (Version of Record)
Rights holder
© Korean Society of Environmental EngineersPublisher statement
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.Acceptance date
2019-11-18Publication date
2019-11-21Copyright date
2020ISSN
1226-1025eISSN
2005-968XPublisher version
Language
- en
Depositor
Prof Gianluca Li Puma. Deposit date: 10 May 2020Usage metrics
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