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Heavy Metal/Organic Chemicals Risk Assessment and Pollution Control
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Heavy Metal/Organic Chemicals Risk Assessment and Pollution Control

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

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 4633

Special Issue Editors

Dr. Chunli Zheng

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Guest Editor
Department of Environmental Sciences and Engineering, Xi’an Jiaotong University, Xi’an, China
Interests: wastewater treatment; heavy metals removal; soil remediation; adsorption
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Aidi Huo

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Guest Editor
School of Water & Environmental, Chang’an University, Xi’an 710054, China
Interests: hydrological models; soil erosion; geological hazards
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Bo Bai

E-Mail Website
Guest Editor
1. Key Laboratory of Subsurface Hydrology and Ecological Effect in Aird Region of the Ministry of Education, Chang’an University, Xi’an 710054, China
2. School of Water and Environment, Chang’an University, Xi’an 710054, China
Interests: photothermal material; Fenton catalytic; controlled release of agrochemicals; desalination; superabsorbent composites

Special Issue Information

Dear Colleagues,

With the development of industry and agriculture, various heavy metals (i.e., Hg, Cd, Pb, Cr and As) and organic chemicals are released into atmosphere, hydrosphere, pedosphere and biosphere. Heavy metals can be accumulated in organisms and consequently enriched through the food chain. Organic chemicals can thus cause severe health problems in the population. A series of mathematical models, such as Monte Carlo, RBCA and Csoil, are applied to heavy metal health risk assessment. In addition, different methods including coagulation flocculation, precipitation filtration, solvent extraction, reverse osmosis, adsorption and biotreatment have been developed to remove heavy metals and organic chemicals. However, exploring the dose–effect relationship as well as establishing the models with the functions of prediction and early warning are the research frontier. The development trend of health risk assessment models should be one of simplicity, strong promotion ability, adaptability to different time and space scales and high reliability. As for heavy metals/organic chemicals pollution control, developing cost-efficient technologies with weak second pollution is promising, in which the removal mechanisms from the molecular interaction viewpoint need to be revealed. This journal aims to promote technological innovation and progress in controlling heavy metals/organic chemicals pollution economically and efficiently.

Dr. Chunli Zheng
Prof. Dr. Aidi Huo
Prof. Dr. Bo Bai
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 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 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

  • environmental behavior
  • health risk assessment
  • dose–effect relationship
  • GIS
  • expose assessment model
  • heavy metal removal
  • organic chemicals treatment
  • functional materials synthesis

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Published Papers (2 papers)

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Research

10 pages, 8771 KiB  
Article
Effects of Aging on Adsorption of Tetracycline Hydrochloride by Humin
by Hongbo Hou, Guoliang Xu, Fei He and Hua Pan
Int. J. Environ. Res. Public Health 2023, 20(4), 2901; https://doi.org/10.3390/ijerph20042901 - 7 Feb 2023
Viewed by 1350
Abstract
To explore the effects of “aging”, an environmental factor, on adsorption of tetracycline hydrochloride (TC) by humin (HM), this paper coats HM surface with ferric hydroxide precipitate to simulate the aging process. The research findings indicate that compared with fresh HM, aged HM [...] Read more.
To explore the effects of “aging”, an environmental factor, on adsorption of tetracycline hydrochloride (TC) by humin (HM), this paper coats HM surface with ferric hydroxide precipitate to simulate the aging process. The research findings indicate that compared with fresh HM, aged HM (HM-Fe) displays an accelerated adsorption rate and higher adsorption capacity on TC. With an initial concentration of 20 mg·L−1, TC’s equilibrium adsorption capacity on HM and HM-Fe is 4.6 and 5.3 mg·g−1, respectively, whereas the corresponding initial adsorption rate is 0.036 and 0.132 mg·g−1·min−1. The pseudo-second-order kinetic model and Freundlich adsorption isotherm model could adequately simulate the adsorption process of TC by HM and HM-Fe, suggesting the occurrence of chemical adsorption and multimolecular layer adsorption between TC and HM and HM-Fe. Based on ΔAbs deduced from Job’s calculation, it can be assumed a complex reaction occurs between the iron element on the HM-Fe surface and TC, which acts as a sort of bridge in strengthening the adsorption of TC by HM-Fe. The aforesaid findings may provide subsequent further study on environmental behaviors of TC in the soil with both fundamental theories and a scientific basis. Full article
(This article belongs to the Special Issue Heavy Metal/Organic Chemicals Risk Assessment and Pollution Control)
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12 pages, 1860 KiB  
Article
Risk Assessment of Heavy Metal Pollution in Farmland Soils at the Northern Foot of the Qinling Mountains, China
by Aidi Huo, Xing Wang, Zhixin Zhao, Luying Yang, Fangqian Zhong, Chunli Zheng and Ningbo Gao
Int. J. Environ. Res. Public Health 2022, 19(22), 14962; https://doi.org/10.3390/ijerph192214962 - 14 Nov 2022
Cited by 20 | Viewed by 2656
Abstract
To provide scientific basis for the prevention and control of heavy metal pollution, a field investigation, sample collection and analysis of the heavy metal content in farmland soils at the northern foot of the Qinling Mountains were conducted. Based on the comparative analysis [...] Read more.
To provide scientific basis for the prevention and control of heavy metal pollution, a field investigation, sample collection and analysis of the heavy metal content in farmland soils at the northern foot of the Qinling Mountains were conducted. Based on the comparative analysis of the single pollution index method, the Nemerow comprehensive pollution index method, the geological accumulation index method, the potential ecological hazard index method, and the geological accumulation index method were used to comprehensively analyze and evaluate the risk of soil heavy metal pollution. The results showed that the heavy metal pollution of farmland soil at the northern foot of the Qinling Mountains was severe, among which Hg and Cr pollution was relatively obvious. Taking the soil screening values of agricultural land as the standard, the quantity of element Hg in agricultural soils at the northern foot of the Qinling Mountains was higher than the relevant screening value. In the two sample sites investigated, the intensity of the heavy metal accumulation index in Baoqizhai Village was Hg > Cr > Cu > As > Pb, and in Dayangyu Village it was Cr > Cu > As > Pb. Among them, in Baoqizhai Village it shows the heavy pollution caused by Hg (Igeo= 3.42) and the light pollution caused by Cr (Igeo < 1) in the two areas. Hg is mostly affected by mining activities and its atmospheric subsidence. At the same time, Cr is mainly derived from the weathering of rock parent material and is also affected by anthropogenic factors to a certain extent. The accumulation of heavy metals in the farmland soil around the northern foot of the Qinling Mountains was relatively high, posing a threat to the surrounding soil environment. Therefore, it is urgent to control farmland soil environmental pollution. Full article
(This article belongs to the Special Issue Heavy Metal/Organic Chemicals Risk Assessment and Pollution Control)
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