Special Issue "Odor and VOCs: Human Perception, Sensing, and Treatment"

A special issue of Environments (ISSN 2076-3298).

Deadline for manuscript submissions: closed (30 June 2018).

Special Issue Editor

Prof. Dr. Ki-Hyun Kim
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Guest Editor

Special Issue Information

Dear Colleagues,

The chemical composition of volatile odorants is often found to consist of various chemical components with diverse source characteristics. As such, the potential of certain odorants and volatile organic compounds (VOCs) is recognized to exert considerable impacts both mentally and psychologically. It is in fact known that some of these compounds, when accumulated beyond the certain concentration range, can exert toxic effects on human beings. However, the context of its perception varies greatly between different humans and between different mental statuses of each person. Hence, odorants and VOCs are often designated as the main target of sensory pollution regulation. At present, the assessment of odor/VOC pollution is generally made either by indirect means such as quantitative analysis based on instrumental detection or by the use of direct (sensory or olfactometry) methods. In this Special Issue, we would like to invite all types of research efforts focusing on perception, sensing (including material-based sensing, e-nose, instrumental detection, and all associated fields), and treatment techniques for odorants and VOCs.

Prof. Dr. Ki-Hyun 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. Environments 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 1000 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

  • Odor
  • VOCs
  • threshold
  • nuisance
  • odor intensity
  • e-nose
  • odor prevention

Published Papers (2 papers)

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Research

Open AccessArticle
Fast Aqueous Biodegradation of Highly-Volatile Organic Compounds in a Novel Anaerobic Reaction Setup
Environments 2018, 5(11), 115; https://doi.org/10.3390/environments5110115 - 27 Oct 2018
Abstract
The present work explores the biodegradation of some emerging pollutants (EPs) in an anaerobic slowly-agitated up-flow packed-bed reactor (USPBR) filled with biological activated carbon (BAC). Chlorobenzene (CB) and 2,4-dichlorophenoxyacetic acid (2,4-D) were selected as volatile organic compounds (VOC) and major constituents of many [...] Read more.
The present work explores the biodegradation of some emerging pollutants (EPs) in an anaerobic slowly-agitated up-flow packed-bed reactor (USPBR) filled with biological activated carbon (BAC). Chlorobenzene (CB) and 2,4-dichlorophenoxyacetic acid (2,4-D) were selected as volatile organic compounds (VOC) and major constituents of many pesticides. Experiments carried out in continuous operation showed that bioconversion up to 90% was achieved for CB and 2,4-D, at space times below 0.6 h and 1.2 h, respectively, at ambient temperature. Overall, removal rates of 0.89 g L−1 d−1 and 0.46 g L−1 d−1 were obtained for CB and 2,4-D, respectively. These results revealed that the degradation of CB and 2,4-D in this anaerobic configuration of bioreactor is an efficient and fast process. The Michaelis–Menten model properly describes the degradation process for CB. Above initial concentrations of 100 mg L−1, 2,4-D presented a considerable inhibitory effect over the biofilm. For this reason, a substrate inhibition factor was included in the Michaelis–Menten equation; the expanded model presented a good fitting to the experimental data, regardless of the inlet concentration. Therefore, USPBR-BAC combination showed to be a highly efficient system for the biodegradation of such compounds. Full article
(This article belongs to the Special Issue Odor and VOCs: Human Perception, Sensing, and Treatment)
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Open AccessArticle
Comprehensive Instrumental Odor Analysis Using SIFT-MS: A Case Study
Environments 2018, 5(4), 43; https://doi.org/10.3390/environments5040043 - 23 Mar 2018
Cited by 1
Abstract
Instrumental analysis of odor is challenging due to the chemical diversity of many important odorants, the high sensitivity required to achieve human odor thresholds, and the dynamic nature of the odor itself. Conventional sensor-based and chromatographic technologies are poorly suited to the task. [...] Read more.
Instrumental analysis of odor is challenging due to the chemical diversity of many important odorants, the high sensitivity required to achieve human odor thresholds, and the dynamic nature of the odor itself. Conventional sensor-based and chromatographic technologies are poorly suited to the task. In this paper, we apply a novel direct mass spectrometric technique—selected ion flow tube mass spectrometry (SIFT-MS)—to the chemical analysis of odor. The SIFT-MS technique provides comprehensive real-time odor analysis through detection and quantitation of all odorants, including aldehydes, amines, organosulfur compounds, and volatile fatty acids. In the case study described, SIFT-MS is utilized to monitor specific odor compounds at a gelatin factory in Christchurch, New Zealand. Odor composition from various steps in the gelatin manufacturing process was determined using SIFT-MS in scan mode. Over a period of several years, the gelatin manufacturer made improvements to their plant to reduce fugitive odors, and sources were re-analyzed. In this investigation, SIFT-MS analysis was utilized to evaluate the effectiveness of an odor neutralization technology based on UV photolysis at the plant. Full article
(This article belongs to the Special Issue Odor and VOCs: Human Perception, Sensing, and Treatment)
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