Environmental Behavior, Toxic Effects and Control Techniques of Persistent Organic Pollutants

A special issue of Toxics (ISSN 2305-6304). This special issue belongs to the section "Emerging Contaminants".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 872

Special Issue Editor


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Guest Editor
College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
Interests: wastewater treatment; organic pollutants; advanced oxidation techniques; disinfection by-products; antibiotic resistant bacteria; environmental and health risks; pollution exposure
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Special Issue Information

Dear Colleagues,

Persistent organic pollutants are now increasingly regarded as crucial threats to ecosystems and human health, which has resulted in the dedication of further efforts and resources to research in this field. With the increasing demand for environmental measures such as sustainable development goals and carbon neutrality, it is crucial to explore the behavior and toxic effects experienced by the environment and develop techniques for the control of persistent organic pollutants.

This Special Issue welcomes the submission of high-quality manuscripts related to environmental behavior, toxic effects and control techniques for persistent organic pollutants. Furthermore, it aims to improve knowledge within this field and provide novel insights and perspectives where appropriate.

Prof. Dr. Tiecheng Wang
Guest Editor

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Keywords

  • wastewater treatment
  • environmental behavior
  • toxic effect
  • persistent organic pollutants
  • control techniques

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Published Papers (1 paper)

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Research

14 pages, 4584 KiB  
Article
Degradation of Atrazine in Water by Dielectric Barrier Discharge Combined with Periodate Oxidation: Enhanced Performance, Degradation Pathways, and Toxicity Assessment
by Han Zhang, Jinping Duan, Pengcheng Luo, Luxiang Zhu and Yanan Liu
Toxics 2024, 12(10), 746; https://doi.org/10.3390/toxics12100746 - 14 Oct 2024
Viewed by 673
Abstract
The widespread occurrence of atrazine (ATZ) in water environments presents a considerable risk to human health and ecosystems. Herein, the performance of dielectric barrier discharge integrated with periodate (DBD/PI) for ATZ decomposition was evaluated. Results demonstrated that the DBD/PI system improved ATZ decomposition [...] Read more.
The widespread occurrence of atrazine (ATZ) in water environments presents a considerable risk to human health and ecosystems. Herein, the performance of dielectric barrier discharge integrated with periodate (DBD/PI) for ATZ decomposition was evaluated. Results demonstrated that the DBD/PI system improved ATZ decomposition efficiency by 18.2–22.5% compared to the sole DBD system. After 10 min treatment, the decomposition efficiency attained 82.4% at a discharge power of 68 W, a PI dosage of 0.02 mM, and an initial ATZ concentration of 10 mg/L. As the PI dosage increased, the decomposition efficiency exhibited a trend of initially increasing, followed by a decrease. Acidic conditions were more favorable for ATZ removal compared to alkaline and neutral conditions. Electron paramagnetic resonance (EPR) was adopted for characterizing the active species produced in the DBD/PI system, and quenching experiments revealed their influence on ATZ decomposition following a sequence of 1O2 > O2• > IO3• > OH•. The decomposition pathways were proposed based on the theoretical calculations and intermediate identification. Additionally, the toxic effects of ATZ and its intermediates were assessed. This study demonstrates that the DBD/PI treatment represents an effective strategy for the decomposition of ATZ in aquatic environments. Full article
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