Sustainable Environmental Solutions II

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

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 2978

Special Issue Editors


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Guest Editor
Ecas4 Australia Pty Ltd., Mile End South, SA 5031, Australia
Interests: Dimensionally Stable Anodes (DSA®) for oxygen and chlorine production; environmental applications of electrochemistry; environmental remediation; water & soil treatments; electrolysed water
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Guest Editor
Department of Chemistry and Industrial Chemistry (DCCI), University of Genova, Via Dodecaneso 31, 16146 Genova, Italy
Interests: environmental remediation; water and soil treatments; environmental nanotechnology; resource recovery; process modelling and simulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The continuous development of our society has led to a constant growth of problems related to the excessive exploitation of natural resources, excessive use of energy, or the release of polluting byproducts during manufacturing operations. Unfortunately, for numerous socioeconomic reasons, the development of processes/actions capable of remedying the damage caused by human activities has not been so rapid.

In recent decades, increasing attention has been paid to the sustainability of products and processes. This also applies to activities aimed at environmental protection, including the remediation of contaminated sites or the treatment of contaminated effluents, as well as the valorisation of waste through the recovery of resources. Although carried out with “noble intentions”, these activities are often highly invasive, unsustainable, and socially unacceptable, as they involve a significant use of chemical products or processes.

In the wake of what was done in the previous Special Issue, this second volume of the same editorial work aims to collect research activities focused on the development of new processes to replace the aforementioned obsolete practices. Taking a cue from real problems and the need to deal with real cases of contamination or prevent potentially harmful situations, we would like to discuss the development and optimisation of “smart” solutions, i.e., sustainable not only from an environmental point of view, but also economically, in order to favour their effective implementation as much as possible.

Contributions on the following topics are particularly welcome:

  • Energy and water efficiency in industry and mining (building materials, food industry, metallurgy, chemical industry, process optimisation, water use and waste minimisation, life cycle assessment, cleaner manufacturing, environmental impact assessment, near zero discharge);
  • Development and applications of renewable energy resources (technical and economic potentials, barriers, cost and benefits);
  • Nano/micro-technologies and sciences for the sustainable development of energy, water, and environmental systems (both experimental and modelling investigations oriented towards technological innovation, including proofs-of-concepts);
  • Environmental management (waste and wastewater management, climate change mitigation, climate change adaptation, land management, reclamation and rewilding, social aspects, strategic environmental impact assessment);
  • Modelling for pollution prevention, energy efficiency and resources optimisation (computer-aided engineering, including machine and deep learning solutions; pollution spreading; heat and mass transfer modelling).

Dr. Sergio Ferro
Dr. Marco Vocciante
Guest Editors

Manuscript Submission Information

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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.

Keywords

  • Environmental pollution and remediation
  • Resource recovery and recycling strategies
  • Sustainability assessment
  • Hazardous waste management
  • Water and wastewater treatment
  • Waste recovery, recycling, and valorisation
  • Soil and water reclamation
  • Valorisation of waste-streams
  • Emerging contaminants
  • Process modelling
  • Innovation technology
  • Circular economy
  • Near zero discharge

Published Papers (2 papers)

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Research

15 pages, 1489 KiB  
Article
Improvement of Arsenic Phytoextraction Using Indigenous Bacteria and Mobilizing Agents
by Elisabetta Franchi, Meri Barbafieri, Gianniantonio Petruzzelli, Sergio Ferro and Marco Vocciante
Appl. Sci. 2022, 12(18), 9059; https://doi.org/10.3390/app12189059 - 9 Sep 2022
Cited by 1 | Viewed by 1112
Abstract
Among inorganic contaminants, arsenic (As) is known for its toxicity and the risks to the environment and human health that could derive from its presence. Phytoremediation represents an effective strategy for the removal of arsenic from contaminated soil, provided that suitable plant species [...] Read more.
Among inorganic contaminants, arsenic (As) is known for its toxicity and the risks to the environment and human health that could derive from its presence. Phytoremediation represents an effective strategy for the removal of arsenic from contaminated soil, provided that suitable plant species and adequate operational plans are exploited. With reference to a disused area located in Southern Italy which was the subject of a previous study, in this work, new strategies were investigated to further improve the effectiveness of a phytoremediation plan for the removal of arsenic. The usefulness of Cannabis sativa (hemp) and Zea mays (corn) was evaluated in this work by microcosm (300 g of mixed soil per test) and mesocosm (4 kg of mixed soil + 1 kg of inert gravel per test) experiments. The addition of arsenic-tolerant bacteria isolated from the rhizosphere of native herbaceous species grown in the contaminated soil was employed to promote plant growth, while different mixtures of mobilizing agents were tested to improve arsenic bioavailability. After the combined treatment, the arsenic content in the aerial parts of the plants increased by about 10 times in the case of corn (from 1.23 to 10.41 mg kg−1) and by about 8 times in the case of hemp (from 1.05 to 8.12 mg kg−1). Full article
(This article belongs to the Special Issue Sustainable Environmental Solutions II)
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16 pages, 16192 KiB  
Article
Screening of Plants and Indigenous Bacteria to Improve Arsenic Phytoextraction
by Elisabetta Franchi, Meri Barbafieri, Gianniantonio Petruzzelli, Sergio Ferro and Marco Vocciante
Appl. Sci. 2022, 12(14), 7267; https://doi.org/10.3390/app12147267 - 19 Jul 2022
Cited by 4 | Viewed by 1283
Abstract
Arsenic (As) is one of the most common inorganic pollutants; unfortunately, it is also one of the most toxic and is therefore a cause of great concern for the health risks that could result from it. Removing arsenic from the soil using phytoremediation [...] Read more.
Arsenic (As) is one of the most common inorganic pollutants; unfortunately, it is also one of the most toxic and is therefore a cause of great concern for the health risks that could result from it. Removing arsenic from the soil using phytoremediation approaches is an effective strategy, and several studies demonstrate the ability of Cannabis sativa (TSN 19109, hemp) to tolerate this harmful contaminant. The aim of this work was to identify the best experimental conditions for a phytoremediation plan to be applied in a disused area located in Sicily (Italy) and contaminated by As, comparing Cannabis sativa with Brassica juncea (TSN 23059) and Zea mays (TSN 42269, corn). To assist the process, several chelating agents were tested to improve arsenic mobility, and two different sets of arsenic-tolerant bacteria were isolated from the rhizospheric soil of indigenous herbaceous species and used to promote plant growth, leading to a significant improvement in terms of biomass produced and phytoextraction. After the combined treatment, the arsenic content in the aerial part of the plants increased by more than two orders of magnitude (e.g., from 0.05 to 6.57 mg kg−1, from 0.04 to 6.69 mg kg−1, and from 0.03 to 5.57 mg kg−1 for brassica, corn, and hemp, respectively), confirming the marked increase in the total absorption of As by plants. Full article
(This article belongs to the Special Issue Sustainable Environmental Solutions II)
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