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Sustainability
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Advanced Materials and Processes for Wastewater Treatment
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Advanced Materials and Processes for Wastewater Treatment

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Water Management".

Deadline for manuscript submissions: 20 June 2025 | Viewed by 2321

Special Issue Editor

Dr. Lu Xu

E-Mail Website
Guest Editor
School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Interests: advanced oxidation processes; environmental functional materials; photocatalysis; adsorption; wastewater treatment

Special Issue Information

Dear Colleagues,

The energy and chemical industry is the foundation and pillar of social development, mainly including coal chemical industry, petrochemical industry, natural gas industry, etc. The advanced treatment and recycling of the high-salt organic wastewater generated in the production process are important factors limiting the sustainable development of the energy and chemical industry. Therefore, the most efficient removal of high-valence inorganic ions (e.g., Ca2+, Mg2+, Al3+, etc.) and organic contaminants from this type of wastewater not only ensures the quality of the recycled water, but also improves the purity of the inorganic salts (e.g., NaCl and Na2SO4) produced by the subsequent evaporation and crystallization process. This Special Issue is dedicated to the dissemination of high-quality papers that develop novel materials and treatment processes for the removal of inorganic ions and organics from high-salt organic wastewater, as well as new insights into the principles of pollutant transfer and transformation.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  1. Sustainable advanced functional materials for the separation and recovery of inorganic ions in water, such as adsorbents, catalytic oxidants/reductants, and membrane materials;
  2. Novel materials for the removal of organic pollutants and the related theoretical studies (e.g., adsorption, chemical oxidation, coagulation, photocatalysis, electrochemical, etc.);
  3. Treatment efficiencies, pollutant transformations, and related theoretical or applied studies of novel treatment processes or reactors for high-salt organic industrial effluents;
  4. Theoretical studies related to the interaction between inorganic ions and organic pollutants during the treatment of high-salt organic industrial wastewater by novel or conventional technologies.

I look forward to receiving your contributions.

Dr. Lu Xu
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

  • sustainable advanced functional materials
  • wastewater treatment
  • high-salt organic industrial wastewater
  • inorganic ion separation and recovery
  • organic pollutant control

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Published Papers (2 papers)

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Research

13 pages, 5496 KiB  
Article
Sustainable Removal of Phenol Dye-Containing Wastewater by Composite Incorporating ZnFe2O4/Nanocellulose Photocatalysts
by Zan Li, Kun Gao, Wenrui Jiang, Jiao Xu and Pavel Lushchyk
Sustainability 2024, 16(24), 11023; https://doi.org/10.3390/su162411023 - 16 Dec 2024
Viewed by 863
Abstract
The escalating issue of phenol-containing wastewater necessitates the development of efficient and sustainable treatment methods. In this context, we present a novel composite photocatalyst comprising ZnFe2O4 (ZFO) nanoparticles supported on nanocellulose (NC), aimed at addressing this environmental challenge. The synthesis [...] Read more.
The escalating issue of phenol-containing wastewater necessitates the development of efficient and sustainable treatment methods. In this context, we present a novel composite photocatalyst comprising ZnFe2O4 (ZFO) nanoparticles supported on nanocellulose (NC), aimed at addressing this environmental challenge. The synthesis involved a facile hydrothermal method followed by the impregnation of ZFO nanoparticles onto the NC matrix. The morphology and structure of ZFO, NC, and ZFO/NC were investigated by TEM, SEM-EDX, UV–vis, FT-IR, XRD, and XPS analyses. ZFO, as a weakly magnetic semiconductor catalytic material, was utilized in photocatalytic experiments under magnetic field conditions. By controlling the electron spin states through the magnetic field, electron–hole recombination was suppressed, resulting in improved photocatalytic performance. The results demonstrated that 43% and 76% degradation was achieved after 120 min of irradiation due to ZFO and 0.5ZFO/NC treatment. Furthermore, the composite 0.5ZFO/NC demonstrated the highest photocatalytic efficiency, showing promising recyclability by maintaining its activity after three cycles of use. This study underscores the potential of the ZFO/NC composite for sustainable wastewater treatment, offering a promising avenue for environmental remediation. Full article
(This article belongs to the Special Issue Advanced Materials and Processes for Wastewater Treatment)
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12 pages, 1990 KiB  
Article
A Potential Technology for Improving the Quality of Lake Water Environments in Cold Zones: A Case Study from Lake Hulun, China
by Hengshuai Gao, Dongyu Xue, Wenbao Li, Sheng Zhang, Yujiao Shi, Boyao Zhang and Yulong Tao
Sustainability 2024, 16(23), 10746; https://doi.org/10.3390/su162310746 - 7 Dec 2024
Viewed by 1036
Abstract
Lakes in cold zones have common characteristics of long frozen periods and fragile water ecosystems. More and more lakes in cold zones have been experiencing water quality deterioration due to eutrophication with climate change and human activities. Lake Hulun is located in the [...] Read more.
Lakes in cold zones have common characteristics of long frozen periods and fragile water ecosystems. More and more lakes in cold zones have been experiencing water quality deterioration due to eutrophication with climate change and human activities. Lake Hulun is located in the cold zone of northern China, in which Cyanobacterial blooms frequently occur. The excessive nutrient input with inflowing river water and the change in lake hydrodynamic condition might be the main factors affecting this. To obtain a better understanding of the effects, the input loads of nutrients from the inflowing rivers were analyzed. A field test of freezing concentration combined with microbial activity regulation was carried out at a river–lake confluence. The results showed the following: (1) Lake Hulun receives a large amount of nitrogen and phosphorus pollutants from river runoff every year, and the water quality of these river is inferior Grade V, which greatly increases the difficulty in ecological purification of cold zone lakes. (2) The microbial activity control technology has a high purification rate for water during the unfrozen period. The order of purification rates for each hydrochemical index was TP > TN > COD > NH4+-N, and the purification rates of TN and COD were between 35% and 36%. Compared with the water before purification, the water quality grade improved from Grade V to Grade III. (3) The composite technology of freezing concentration–microbial activity regulation has a general water purification rate during the frozen period. Under the low-temperature condition, the TN and COD nutrient fluxes in the water were reduced by 9.38% and 9.36%, respectively. After purification, the water quality grade of the ice body was above Grade II, and the water under the ice layer was above Grade IV, which was one grade higher than the water quality grade of the original lake water. This water treatment and purification process is a green, low-energy consumption, and low-cost technology. This study can provide reference for the integration and demonstration of lake water ecological governance and water resources security technology in cold and arid regions. It is beneficial to the sustainable development of the lake. Full article
(This article belongs to the Special Issue Advanced Materials and Processes for Wastewater Treatment)
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