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Environmental Chemistry and Air Quality Control
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Environmental Chemistry and Air Quality Control

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Chemical Engineering and Technology".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 5246

Special Issue Editor

Dr. Adedeji Adelodun

E-Mail Website
Guest Editor
Department of Marine Science and Technology, School of Earth and Mineral Sciences, Federal University of Technology, Akure, Nigeria
Interests: environmental toxicology; environmental chemistry; air quality; applied material science; marine geochemistry; environmental engineering

Special Issue Information

Dear Colleagues,

Modern-day advances in technology and improved livelihoods have exponentially increased the amount of time that humans spend indoors. As a result, humans spend approximately 92% of their time indoors. Indoors, air and water remain the most crucial environmental essentials for human existence. However, the incessant population explosion and rampant environmental pollution have rendered them unhealthy and unsustainable. To mitigate this problem, several research efforts have been directed toward understanding and controlling various air and water pollutants that have toxic effects on human health and productivity. Such approaches include efficient and novel sampling methods, analytical techniques, artificial intelligence, mitigation guidelines, pollution control techniques, etc.

In this context, this Special Issue, “Environmental Chemistry and Air Quality Control”, welcomes research papers (technical and review papers) on recent studies and innovations in water potability and indoor air quality. Towards achieving environmentally driven sustainable development goals (SDGs), this issue aims to address one or more of the following research topics:

  • Recent advances in water purification via adsorption;
  • Application of artificial intelligence for pollution control;
  • Water and air pollution control using biosorption;
  • Low-cost technology for environmental pollution cleanup;
  • Available technologies for indoor air pollution and thermal comfort;
  • Improved potable water availability: desalination and filtration.

We look forward to receiving your contributions.

Dr. Adedeji Adelodun
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 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. Sustainability 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.

Keywords

  • indoor air quality
  • pollution control
  • adsorption
  • water potability
  • air purifiers
  • indoor plants
  • malodors
  • aerosols
  • microplastics
  • biosorption

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

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Research

18 pages, 3664 KiB  
Article
Fabrication of Bamboo-Based Activated Carbon for Low-Level CO2 Adsorption toward Sustainable Indoor Air
by Sujeong Heo, Wooram Kim, Youngmin Jo and Adedeji Adebukola Adelodun
Sustainability 2024, 16(4), 1634; https://doi.org/10.3390/su16041634 - 16 Feb 2024
Cited by 2 | Viewed by 1520
Abstract
This study fabricated a low-cost activated carbon (AC) adsorbent from readily available bamboo trees to control indoor CO2 levels and reduce energy costs associated with sustaining clean indoor air. Bamboo is naturally high in potassium content and has narrow fibrous channels that [...] Read more.
This study fabricated a low-cost activated carbon (AC) adsorbent from readily available bamboo trees to control indoor CO2 levels and reduce energy costs associated with sustaining clean indoor air. Bamboo is naturally high in potassium content and has narrow fibrous channels that could enhance selective CO2 adsorption. The prepared bamboo-based activated carbon (BAC) exhibits predominantly micropores with an average pore size of 0.17 nm and a specific surface area of 984 m2/g. Upon amination, amine functionalities, such as pyridine, pyrrole, and quaternary N, were formed on its surface, enhancing its CO2 adsorption capacity of 0.98 and 1.80 mmol/g for low-level (3000 ppm) and pure CO2 flows at the ambient condition, respectively. In addition, the 0.3% CO2/N2 selectivity (αs,g) of the prepared sorbents revealed a superior affinity of CO2 by BAC (8.60) over coconut shell-based adsorbents (1.16–1.38). Furthermore, amination enhanced BAC’s CO2αs,g to 13.4. These results exhibit this sustainable approach’s potential capabilities to ensure the control of indoor CO2 levels, thereby reducing the cost associated with mechanical ventilation systems. Further research should test the new sorbent’s adsorption properties (isotherm, kinetics, and thermodynamics) for real-life applicability. Full article
(This article belongs to the Special Issue Environmental Chemistry and Air Quality Control)
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9 pages, 1046 KiB  
Article
Thermal Regeneration of Activated Carbon Used as an Adsorbent for Hydrogen Sulfide (H2S)
by Brendan Bunker, Bruce Dvorak and Ashraf Aly Hassan
Sustainability 2023, 15(8), 6435; https://doi.org/10.3390/su15086435 - 10 Apr 2023
Cited by 2 | Viewed by 3370
Abstract
The treatment of gaseous contaminants, such as hydrogen sulfide (H2S), is often carried out with adsorbent materials that are disposed of after saturation. The reuse of such materials promotes sustainability and the reduction in unnecessary waste. Granular activated carbon (GAC) is [...] Read more.
The treatment of gaseous contaminants, such as hydrogen sulfide (H2S), is often carried out with adsorbent materials that are disposed of after saturation. The reuse of such materials promotes sustainability and the reduction in unnecessary waste. Granular activated carbon (GAC) is a well-known adsorbent used to capture gaseous H2S which can be reused. It is hypothesized that it can also concentrate contaminants for future treatment, thereby reducing secondary treatment costs. Cyclic adsorption/desorption experiments were completed with samples of GAC to investigate the feasibility of implementing the concept of repeated H2S adsorption/desorption in the construction of a pilot odor control device. A column filled with GAC was exposed to a stream of H2S gas and then heated to 500 °C to regenerate the carbon. The concentration of H2S at the inlet and outlet of the column was measured at regular intervals. Three samples of GAC had an average adsorption efficiency of 82% over the course of three cycles and were regenerated to 70% of initial adsorptive capacity after one cycle, and 60% after two cycles. These results indicate that after being saturated with H2S, GAC can be regenerated at high temperatures, evidence that H2S may become concentrated during the process. Additional characterization experiments confirmed that the sulfur content of the carbon increased after adsorption and decreased after thermal regeneration. The procedures demonstrated in this experiment were further utilized with a pilot device designed to provide a low-cost method for reducing odors in landfill gas. Full article
(This article belongs to the Special Issue Environmental Chemistry and Air Quality Control)
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