Special Issue "Arsenic Geochemistry and Health"

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Environmental Mineralogy and Biogeochemistry".

Deadline for manuscript submissions: 28 February 2019

Special Issue Editor

Guest Editor
Prof. Dr. Kyoung-Woong Kim

School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST) , Gwangju, Republic of Korea
Website | E-Mail
Interests: arsenic geochemistry; soil remediation; appropriate technology; removal of As in water

Special Issue Information

Dear Colleagues,

Elevated concentrations of As in groundwater have been reported in Taiwan, West Bengal and Bangladesh, resulting in a major public health issue. Despite these concerns, groundwater is still a major source of drinking water in the developing world, especially in Southeast Asia. Recently, unsafe level of As also been revealed in the delta of the Mekong River. There has been a great deal of research about the enrichment process, geographic characteristics and mitigation of As enriched groundwater to avoid the consumption of this unsafe groundwater.

Arsenic is also gained great notoriety because of the toxic properties of a number of its compounds. Arsenic contamination in soil is mainly derived from the mining and smelting activities. Remediation of As-contaminated soil can be achieved by many technologies, including biological treatment, phytoremediation, solidification/stabilization, and so on. However, these techniques cannot be a final solution due to the difficulty in application and their high costs.

In order to overcome these uncertainties in the issue of As geochemistry and human health, in this Special Issue, all the research outcomes in the field of geochemistry, toxicity, risk assessment and its mitigation and remediation will be welcome.

Prof. Dr. Kyoung-Woong Kim
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. Minerals is an international peer-reviewed open access monthly 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 1400 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

  • Arsenic
  • groundwater
  • mining and smelting
  • geochemistry
  • toxicity
  • risk assessment
  • mitigation and remediation

Published Papers (1 paper)

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Research

Open AccessArticle Influence of pH and Contaminant Redox Form on the Competitive Removal of Arsenic and Antimony from Aqueous Media by Coagulation
Minerals 2018, 8(12), 574; https://doi.org/10.3390/min8120574
Received: 24 October 2018 / Revised: 30 November 2018 / Accepted: 3 December 2018 / Published: 6 December 2018
Cited by 1 | PDF Full-text (2145 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
In most countries, arsenic (As) and antimony (Sb) are regulated pollutants, due to their significant impacts on the environment and human health. Iron-based (Fe) coagulants play a fundamental role in the removal of both elements from aqueous media. This study aims to investigate [...] Read more.
In most countries, arsenic (As) and antimony (Sb) are regulated pollutants, due to their significant impacts on the environment and human health. Iron-based (Fe) coagulants play a fundamental role in the removal of both elements from aqueous media. This study aims to investigate the competitive removal of As and Sb in relation to Fe solubility. Coagulation experiments were conducted in synthetic water under various pH and contaminant loading, using ferric chloride (FC) as a coagulant. In the single system, the pentavalent species significantly reduced the Fe solubility and thereby enhanced the mobility of As and Sb under these environmental conditions. The coexistence of pentavalent and trivalent species in the binary system considerably decreases the Fe solubility at acidic conditions while enhancing the dissolution under alkaline conditions, thus affecting the overall removal of both species. The presence of four redox species in the quaternary system decreases the Fe solubility remarkably over a wide pH range, with better Sb removal, as compared to As under similar conditions. The adsorption study of the single system showed a decrease in As(V) adsorption capacity at higher concentration, while in the binary system, the Sb(III) showed strong adsorption potential, compared to other species. In the quaternary system, the presence of all four redox species has a synergistic effect on total Sb adsorption, in comparison to the total As. Furthermore, the results of Fourier transform infrared (FT-IR) analysis of FC composite contaminant flocs confirm that the combined effect of charge neutralization and inner sphere complexation might be a possible removal mechanism. These findings may facilitate the fate, transport and comparative removal of redox species in the heterogeneous aquatic environment. Full article
(This article belongs to the Special Issue Arsenic Geochemistry and Health)
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