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Special Issue "High Chromium Levels in Soils and Waters: Origin, Effects and Treatment"

A special issue of International Journal of Environmental Research and Public Health (ISSN 1660-4601). This special issue belongs to the section "Environmental Earth Science and Medical Geology".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 1504

Special Issue Editors

Department of Biology, Ecology and Earth Sciences (DIBEST), University of Calabria (UniCAL), 87036 Arcavacata di Rende, CS, Italy
Interests: water quality; water-rock interaction; soil pollution; heavy metals
Special Issues, Collections and Topics in MDPI journals
Institute on Membrane Technology, National Research Council, ITM-CNR, 87036 Arcavacata di Rende, Italy
Interests: polymeric membranes; sustainable membrane preparation; bio-polymeric membranes; flat membranes; hollow-fibers; nano fibers; membrane preparation; membrane characterization; pervaporation; antifouling coatings; self-cleaning membranes; ultra-micro filtration
Special Issues, Collections and Topics in MDPI journals
Department of Biology, Ecology and Earth Sciences (DIBEST), University of Calabria (UniCAL), 87036 Arcavacata di Rende (CS), Italy
Interests: water quality; water-rock interaction; soil pollution; heavy metals
Department of Biology, Ecology and Earth Sciences (DIBEST), University of Calabria (UniCAL), 87036 Arcavacata di Rende (CS), Italy
Interests: water quality; water-rock interaction; soil pollution; heavy metals; water remediation

Special Issue Information

Dear Colleagues,

Chromium (Cr) is a dangerous pollutant occurring into the environment due to anthropogenic activities and natural processes. Cr naturally occurs in several oxidation states, although only the Cr(III) and Cr(VI) species are stable at near-surface environment conditions.  It is typically associated with ultramafic rocks and derived soils, because of the Cr(III)-bearing minerals that commonly constitute these lithotypes, such as spinels, pyroxenes, olivines, amphiboles, serpentine minerals, and others. However, due to weathering processes, Cr(III) is oxidizing into highly toxic Cr(VI) species and is widespread into the environment, reaching high levels into soil media and in natural waters used for agricultural and drinking purposes. However, chromium occurrence in the environment is also due to its common use in a large spectrum of industries, such as metallurgical and pigment industries, as well as ferrous and non-ferrous alloy metal fabrication, leather-tanning, and chrome-plating.

Considering its negative effects on human health, defining the pollutant's behavior into each environment and developing ad-hoc treatment technologies became an urgent challenge for the scientific community to develop safe land use and a proper water management plan in polluted areas.

The Special Issue solicits novel contributions concerning chromium release and fate during weathering processes in different geochemical and geological environments, employing geochemical survey and geochemical modelling to define soil and water pollution. We also welcome contributions regarding multidisciplinary case studies, including environmental exposure to Cr and relating effects on humans and ecosystems due to natural processes and anthropogenic activities. We also encourage contributions concerning the use of conventional and novel technologies for water remediation as well as sustainable management of purify waters and waste products.

Prof. Dr. Carmine Apollaro
Dr. Alberto Figoli
Prof. Dr. Rosanna De Rosa
Dr. Ilaria Fuoco
Guest Editors

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 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. International Journal of Environmental Research and Public Health 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 2500 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

  • pollution
  • groundwaters
  • soil contamination
  • chromium
  • water remediation
  • membranes
  • weathering processes
  • polluting-anthropogenic activities

Published Papers (1 paper)

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Research

17 pages, 4810 KiB  
Article
High Adsorption of Hazardous Cr(VI) from Water Using a Biofilter Composed of Native Pseudomonas koreensis on Alginate Beads
Int. J. Environ. Res. Public Health 2023, 20(2), 1385; https://doi.org/10.3390/ijerph20021385 - 12 Jan 2023
Cited by 1 | Viewed by 904
Abstract
Most conventional methods to remove heavy metals from water are efficient for high concentrations, but they are expensive, produce secondary pollution, and cannot remove low concentrations. This paper proposes a biological system to remove Cr(VI) from aqueous solutions; the biofilter is composed of [...] Read more.
Most conventional methods to remove heavy metals from water are efficient for high concentrations, but they are expensive, produce secondary pollution, and cannot remove low concentrations. This paper proposes a biological system to remove Cr(VI) from aqueous solutions; the biofilter is composed of a native Pseudomonas koreensis immobilized in calcium alginate beads. Lab experiments were conducted in batch reactors, considering different operating conditions: Cr(VI) concentration, temperature, pH, and time. At 30 °C and a pH of 6.6, the immobilized bacteria achieved their optimal adsorption capacity. In the chromium adsorption system, saturation was reached at 30 h with a qmax = 625 mg g−1. By adjusting the experimental data to the Langmuir and Freundlich models, it is suggested that P. koreensis forms a biofilm with a homogeneous surface where Cr(VI) is adsorbed and that the bacteria also incorporates the metal in its metabolism, leading to a multilayer adsorption. On the other hand, using Fourier transform infrared spectroscopy, it was inferred that the functional groups involved in the adsorption process were O-H and C=O, which are a part of the P. koreensis cell wall. Full article
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