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In Situ Treatment of Organic Pollutants in Water Environment Using...
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In Situ Treatment of Organic Pollutants in Water Environment Using Bioremediation and Advanced Oxidation Technology

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Quality and Contamination".

Deadline for manuscript submissions: closed (15 April 2022) | Viewed by 3708

Special Issue Editors

Prof. Dr. Wei Zhao

E-Mail Website
Guest Editor
The University of Hong Kong, Pokfulam, Hong Kong
Interests: advanced oxidation; catalysis; materials chemistry; environmental chemistry
Prof. Dr. Xiaoyan Liu

E-Mail Website
Guest Editor
Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huai'an 223300, China
Interests: fermentation products of Yarrowia lipolytica using industrial and agricultural wastes; mechanisms of protein kinase SNF1 contributes to the metabolism regulation in Y. lipolytca
Dr. Yukun Zhu

E-Mail Website
Guest Editor
School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
Interests: preparation and characterization of environmental photocatalysis nanomaterials and their applications in the environment, such as pollutant removal and bacterial inactivation.
Dr. Feihu Mu

E-Mail Website
Guest Editor
School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
Interests: preparation and characterization of environmental functional nanomaterials and their applications in the environment; materials science and engineering; detailed in materials syntheses; characterizations; properties and applications

Special Issue Information

Dear Colleagues,

In recent years, the pollution of surface water and groundwater caused by industrialization has become more and more serious, which has attracted extensive attention. Among all kinds of water pollution, organic pollution plays a leading role. This kind of pollution has the characteristics of large discharge, wide pollution area and wide variety. In particular, persistent, toxic and harmful pollutants can be enriched through the food chain, which seriously threatens human health and development. How to effectively treat organic polluted wastewater, reduce environmental load and protect human living environment is an important problem to be solved at present. Biodegradation, biotransformation and advanced oxidation technology, as effective organic pollution wastewater treatment technologies, are favoured because of their simple, value-added, fast and green characteristics. This Special Issue aims to summarize the application of biodegradation, biotransformation and advanced oxidation technology in in situ wastewater treatment. The topic of this Special Issue is to effectively degrade organic pollutants in sewage by using biodegradation, biotransformation technology, photocatalytic technology, ozone oxidation, Fenton oxidation and other technologies.

Prof. Dr. Wei Zhao
Prof. Dr. Xiaoyan Liu
Dr. Yukun Zhu
Dr. Feihu Mu
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. Water 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 2600 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

  • photocataytic
  • in situ
  • fenton oxidation
  • ozone oxidation
  • biodegradation
  • biotransformation

Published Papers (2 papers)

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Research

12 pages, 1593 KiB  
Article
Study on the Arsenate Removal from Raw As(V)-Rich Wastewater Using Zero-Valent Iron
by Feng Liang, Le Wang, Huijie Zhu, Qian Dong, Yan Zhang, Jiayan Liu, Siyu Zhang, Zhiwei Ye, Ye Zhang, Xiuji Zhang and Bo Liu
Water 2022, 14(7), 1118; https://0-doi-org.brum.beds.ac.uk/10.3390/w14071118 - 31 Mar 2022
Cited by 4 | Viewed by 1476
Abstract
Due to the large volumes of solid waste produced by the traditional arsenic-rich lime iron salt precipitation method treatment produced during wet-smelting by precious metal workshops, raw As(V)-rich wastewater from a domestic metallurgical enterprise was chosen as the research object. Zero-valent iron (ZVI) [...] Read more.
Due to the large volumes of solid waste produced by the traditional arsenic-rich lime iron salt precipitation method treatment produced during wet-smelting by precious metal workshops, raw As(V)-rich wastewater from a domestic metallurgical enterprise was chosen as the research object. Zero-valent iron (ZVI) was used to remove arsenate (As(V)) from raw wastewater. Factors affecting the adsorption of As(V), such as the ZVI size and adsorption time, were investigated. The As(V) removal percentage was >98.2% when using 40, 100, 250, or 300 mesh ZVI in a 2.8 mg·L−1 As(V) solution at pH 7, with an iron mass–wastewater ratio of 5 g/100 mL, and 12 h reaction time. The As(V) removal percentage was >86.5% when using 40 mesh ZVI after 50 min of reaction. A comprehensive evaluation was performed on the effects of factors such as cost and water head loss. Here, 40 mesh ZVI was used for column-based separation, in which the mass of solid waste was very small. Column experiments indicated that the adsorbent more efficiently eliminated arsenate in comparison to the earlier reported adsorbents. High bed volumes (BV) of 3200 BV, 6300 BV, and 8400 BV up to a breakthrough concentration of 100 μg·L−1 were achieved for arsenate removal in the presence of 2.8 mg·L−1 of arsenic. The empty bed contact times (EBCTs) were 2.6 min, 5.1 min, and 9.8 min, respectively. Furthermore, the concentrations of other pollutants such as Cu2+, Zn2+, F−, Cd2+, Cr6+, Pb2+, and F- met the national discharge standard. The elimination of As(V) and other heavy metals from solutions employing ZVI is efficient, cheap, and produces no secondary environmental pollution, making it an ideal candidate for heavy metal removal from wastewater. Full article
(This article belongs to the Special Issue In Situ Treatment of Organic Pollutants in Water Environment Using Bioremediation and Advanced Oxidation Technology)
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13 pages, 2578 KiB  
Article
Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis
by Zhiguang Yang, Gaojun Yan, Zhiwei Song, Junzheng Zhang, Chenlong Wang, Zhisheng Yu, Zhihui Bai, Guoqiang Zhuang and Feng Liang
Water 2021, 13(21), 2944; https://0-doi-org.brum.beds.ac.uk/10.3390/w13212944 - 20 Oct 2021
Cited by 5 | Viewed by 1556
Abstract
Chitin-char is obtained from fast pyrolysis of chitin. To obtain the maximum surface area, chitin-char is treated by nitric acid. Then, a kind of new arsenic removal bio-material is prepared by loading Ca(OH)2 on the char (called Ca(OH)2-char). IR spectroscopy [...] Read more.
Chitin-char is obtained from fast pyrolysis of chitin. To obtain the maximum surface area, chitin-char is treated by nitric acid. Then, a kind of new arsenic removal bio-material is prepared by loading Ca(OH)2 on the char (called Ca(OH)2-char). IR spectroscopy before and after char treatment reveal at least three distinct patterns of peak changes. An adsorption study is performed at different doses, pHs, and coexisting ions in the batch mode. The adsorption kinetics follows two first-order equations. Kinetic studies yield an optimum equilibrium time of 2 h with an adsorbent dose of 0.4 g/L and concentration of 10 mg/L. Using only 0.4 g/L of carbon, the maximum removal capacity is about 99.8%. The result indicates that the Ca(OH)2-char has a high adsorption capacity in the process of removing arsenic (III). Full article
(This article belongs to the Special Issue In Situ Treatment of Organic Pollutants in Water Environment Using Bioremediation and Advanced Oxidation Technology)
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