Special Issue "Non-toxic Materials For Planet Earth"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Environmental and Sustainable Science and Technology".

Deadline for manuscript submissions: 31 August 2019.

Special Issue Editor

Guest Editor
Assoc. Prof. Manoj Gupta

Materials Group, Department of Mechanical Engineering, NUS, 9 Engineering Drive 1, 117576 Singapore
Website | E-Mail
Interests: processing; characterization; lightweight materials; nanocomposites

Special Issue Information

Dear Colleagues,

Over the past 100 years, many toxic materials have been developed and used in multiple applications leading to severe pollution of land, water bodies and air. This has posed serious health challenges to all the inhabitants, humans or otherwise, of planet earth as these materials have entered our food chain as per recent studies. The present issue is launched with a specific aim to promote the research, education and usage of environment safe materials.  Present issue thus welcomes all the articles related to development, processing, characterization and application of all categories of materials which are non-toxic and sustainable for making our planet an excellent place to live.  Particular topics covered in this issue include but not restricted to following:

  1. Research into non-toxic materials
  2. Lightweight Materials for greenhouse gas mitigation
  3. Energy efficient Processing Techniques
  4. Materials to mitigate water pollution
  5. Materials to mitigate land pollution
  6. Characterization
  7. Applications
  8. Miscellaneous topic related to thematic title

Reviews, both mini and regular, are invited on any of the above topics.

Prof. Dr. Manoj Gupta
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com 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 papers will be 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 1500 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.

Keywords

  • materials
  • pollution
  • mitigation
  • non-toxic
  • application
  • characterization

Published Papers (1 paper)

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Research

Open AccessArticle
Hydrochemical Processes and Isotopic Study of Geothermal Springs within Soutpansberg, Limpopo Province, South Africa
Appl. Sci. 2019, 9(8), 1688; https://doi.org/10.3390/app9081688
Received: 23 January 2019 / Revised: 26 February 2019 / Accepted: 27 February 2019 / Published: 24 April 2019
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Abstract
Geothermal springs and boreholes within the Soutpansberg Group were sampled and analysed for their major ion chemistry and stable isotope compositions in order to ascertain the possible sources and geochemical processes of the waters. The temperature of the geothermal springs ranges from 41 [...] Read more.
Geothermal springs and boreholes within the Soutpansberg Group were sampled and analysed for their major ion chemistry and stable isotope compositions in order to ascertain the possible sources and geochemical processes of the waters. The temperature of the geothermal springs ranges from 41 °C to 49 °C (thermal/hot waters) and 53 °C to 69 °C (scalding/hyperthermal waters). The major water types are Na-Cl and Na-HCO3, which are typical of marine and deep groundwaters influenced by ion-exchange processes. The hydrochemical parameters suggest that thermal gradient, carbonate weathering, mineral dissolution, ion exchange, and evaporation are the main geochemical processes controlling the geothermal springs. The δ18O and δ2H values vary from −5.82‰ to −4.82‰ for δ18O and −33.5‰ to −24.6‰ for δ2H for all the geothermal spring water. The isotopic ranges of the groundwater are relatively smaller and more depleted than those of rainwater (δ2H = −9.8‰ and δ18O = −2.7‰). The δ2H and δ18O signatures reveal a significant infiltration before evaporation. The δ2H and δ18O values further confirm that the waters are of meteoric origin, which implies that modern rainfall is the fundamental component of recharge derived from the infiltration of local precipitation with significant contribution of another type of water in the deeper part of the aquifer. These results provide further insight into this basement aquifer, which is a vital resource for the region. Full article
(This article belongs to the Special Issue Non-toxic Materials For Planet Earth)
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