Applied Geochemistry and Clay Science II

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Earth Sciences".

Deadline for manuscript submissions: closed (20 May 2023) | Viewed by 959

Special Issue Editors

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Guest Editor
Institute of Ore Geology, Petrography, Mineralogy and Geochemistry, Russian Academy of Science (IGEM RAS), 119017 Moscow, Russia
Interests: clays and clay minerals; mineral transformation due to geological and teсhnological processes; bentonite; radioactive waste isolation; sedimentology
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Guest Editor
Department of High Energy Chemistry and Radioecology, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia
Interests: radioactivity; adsorption; radionuclides; surface adsorption; porous materials; environmental radioactivity; BET surface area measurement; green chemistry technology

Special Issue Information

Dear Colleagues,

I am pleased to invite you to contribute to this Special Issue, the main focus of which is a combination of clay science, industrial mineralogy, and technogenesis.

The development of the economy leads to the formation of various technogenic processes, which can quickly lead to changes in the environment, biosphere, and technological parameters of various objects.

In this Special Issue, we invite papers discussing the impact of various anthropogenic/technogenic processes on the geological environment and biosphere, the use of clay materials in construction and the possible transformation of building materials over time, and the transformation of the chemical and mineralogical composition of clay minerals exposed to highly toxic including radioactive waste (RW). Additionally, we invite papers on the use of knowledge about clay minerals as a tool for solving various problems in the field of geological interpretation, facies analysis, art, pharmaceuticals, and, to a greater extent, for solving various environmental problems.

Clay minerals are difficult objects to study, so any research providing results aimed at methodological support of the analysis of clay materials and the development/implementation of an integrated analytical approach to the study of clay materials is of great significance.

Separately, studies aimed at studying the processes occurring in near-surface and deep geological disposal sites for radioactive waste, as well as at nuclear and radiation hazardous facilities after their decommissioning; the interaction of materials of engineered barrier systems (EBS); the transformation of radioactive waste matrices; the impact of pore water, temperature, pH of the environment. and other factors on the composition and properties of the EBS materials; and the behavior of bentonite in natural and model conditions of radioactive waste storage are invited.

Dr. Victoria Krupskaya
Dr. Ekaterina A. Tyupina
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • clay minerals
  • waste matrix
  • bentonite
  • geochemistry
  • radioactive waste
  • technological processes
  • technogenic processes
  • engineered barriers
  • microbiological impact
  • properties of clay materials
  • analysis of clay materials

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Published Papers (1 paper)

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12 pages, 2667 KiB  
Convective–Microwave–IR Hybrid Drying of Kaolin Clay—Kinetics of Process
by Dominik Mierzwa and Grzegorz Musielak
Appl. Sci. 2023, 13(13), 7451; - 23 Jun 2023
Cited by 2 | Viewed by 710
Kaolin clay is one of the essential components of utility and technical ceramic products. Drying is one of the stages of its production and is crucial for the quality of the obtained products. Due to the low energy efficiency of the dryers, it [...] Read more.
Kaolin clay is one of the essential components of utility and technical ceramic products. Drying is one of the stages of its production and is crucial for the quality of the obtained products. Due to the low energy efficiency of the dryers, it is also one of the most energy-intensive operations performed not only in the production of ceramics but in the industry as a whole. For this reason, modern drying techniques are sought. They are required to be energy efficient, sustainable and produce high-quality products. An example is the so-called hybrid drying, which combines several drying techniques (energy sources) into one process. The aim of this work was to determine the impact of microwave and infrared radiation on the kinetics and energy consumption of convective drying of kaolin clay and the quality of the products. The interaction of convective, microwave and infrared drying was investigated. Drying times, energy consumption and visual quality were compared for the tested processes. The fastest process was convection–microwave drying, where a reduction in drying time of 70% and energy consumption of 50% was observed. Unfortunately, intensive drying had a negative impact on the quality of the products (numerous cracks on the side surface). The best drying methods are those that use all energy sources simultaneously and periodically. Hybrid processes that use all energy sources in a periodic manner had the greatest efficiency. The drying time in these programs was shortened in relation solely to the convection process by 45 to 50% while reducing energy consumption by 3–18%. The product had the best quality. Full article
(This article belongs to the Special Issue Applied Geochemistry and Clay Science II)
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