Environmental applications of thermally modified and acid activated clay minerals:Current status of the art

España, Victor Andres Arias and Sarkar, Binoy and Biswas, Bhabananda and Rusmin, Ruhaida and Naidu, Ravi (2019) Environmental applications of thermally modified and acid activated clay minerals:Current status of the art. Environmental Technology and Innovation, 13. pp. 383-397. ISSN 2352-1864

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Abstract

Adsorption has been the most common technology used for water and wastewater treatment for a number of reasons including simplicity, flexibility in design, high efficiency and cost effectiveness. Although it has been a proven technology for removal of contaminants including heavy metals, it has a major limitation to its application, which is the cost of the adsorbent. In this context, natural clay minerals are considered as low cost materials because they are abundant and can be easily modified to improve their surface properties (e.g., surface area, charge) and consequently increase the adsorption capacity and a wide range of other applicabilities. The two most common modification methods of clay minerals are thermal modification and acid activation. The aim of this paper is to critically review the current status of thermally modified and acid activated clay minerals for environmental applications. It will evaluate the adsorption efficiencies and conditions for removal of contaminants and identify the existing data gaps to widespread commercial uptake of the technology.

Item Type:
Journal Article
Journal or Publication Title:
Environmental Technology and Innovation
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1100/1110
Subjects:
ID Code:
140150
Deposited By:
Deposited On:
14 Jan 2020 14:30
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Oct 2020 06:32