Environmental Functional Materials for Water and Wastewater Treatment: Recent Advances and Challenges

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Wastewater Treatment and Reuse".

Deadline for manuscript submissions: closed (20 December 2023) | Viewed by 1740

Special Issue Editors


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Guest Editor
Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
Interests: AOPs; wastewater treatment; micro-pollutants; environmental decontamination
Special Issues, Collections and Topics in MDPI journals
School of Environmental Science and Engineering, Tiangong University, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
Interests: electrochemical technology; advanced oxidation; membrane fouling control; wastewater treatment
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Water is the most important aspect of human life and the development of civilization. Today, a severe crisis in relation to water resources is ahead of us. The main sources of water contamination include waste-water discharge from industries, agricultural activities, municipal wastewater and environmental and global changes. The presence of toxic substances, heavy metals, dyes and microorganisms, even in trace amounts, has a potential threat to the natural development of the eco-system and human health. Recently, environmental and functional materials with unique characteristics and excellent performances have brought a high level of innovation in the sector of water decontamination. Thus, it is important and necessary to develop new strategies to synthesize environmental and functional materials with controlled properties, which will provide unprecedented opportunities to explore cost-effective and environmentally acceptable water purification processes.

The aim of this issue is to discuss the recent development of environmental and functional materials for their applications in water decontamination. The recent development of novel environmental and functional materials in design, synthesis, characterization and their promising application potential will be greatly appreciated. Moreover, we paid attention to the interaction and mechanism among materials, microstructure and the performances in water decontamination. We are asking for the submission of (i) Research Articles, (ii) Review articles; (iii) Communications/Letters from editors on the following topics (but not limited to):

Potential topics include, but are not limited to:

(1) Synthesis strategies and characterization methods of environmental functional materials;

(2) Films, hydrogels and aerogel from environmental functional materials;

(3) Interaction and mechanism between different types of environmental functional materials;

(4) Transition metal and carbon material-based environmental functional materials;

(5) Environmental materials in advanced oxidation processes (AOPs);

(6) Environmental materials for water decontamination;

(7) Fundamental studies of environmental functional materials: synthesis strategies and characterization methods;

(8) Novel catalysts and adsorbents for water decontamination.

Prof. Dr. Xiuwen Cheng
Dr. Junjing Li
Guest Editors

Manuscript Submission Information

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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.

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Keywords

  • environmental functional materials
  • water and wastewater
  • water decontamination
  • advanced oxidation processes
  • microstructure
  • interaction and mechanism

Published Papers (1 paper)

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Research

13 pages, 12129 KiB  
Article
Influence of Biological Manganese Oxides on the Removal of Organic Matter and Ammonia in Micro-Polluted Source Water
by Lichao Nengzi, Ying Jiang, Zhirong Fang, Qiyuan Hu, Guanglei Qiu and Haitao Li
Water 2023, 15(8), 1624; https://doi.org/10.3390/w15081624 - 21 Apr 2023
Cited by 3 | Viewed by 1328
Abstract
In order to improve the removal efficiency of refractory organic matters in micro-polluted source water, biological manganese oxides (BMOs) were generated in situ in the biological aerated filter (BAF) (BAF 2#), which could oxidize the refractory organic matters into biodegradable organic [...] Read more.
In order to improve the removal efficiency of refractory organic matters in micro-polluted source water, biological manganese oxides (BMOs) were generated in situ in the biological aerated filter (BAF) (BAF 2#), which could oxidize the refractory organic matters into biodegradable organic matters. CODMn and NH4+-N in the effluent of BAF 2# both stabilized on the 39th day, while CODMn and NH4+-N in the effluent of the control BAF (BAF 1#) stabilized on the 38th and 42nd days, respectively. In the steady phase, the removal rates of CODMn and NH4+-N in BAF 1# were 41.51% and 94.79%, respectively, while in BAF 2#, they were 54.52% and 95.55%, respectively. BMOs generated in BAF 2# evidently improved the efficiency of CODMn removal. With the increase in the influent Mn2+ in BAF 2#, the rate of CODMn removal was gradually improved to 63.60%, while the efficiency of NH4+-N removal was slightly improved, CODMn was evidently removed in each section of the filter layer, and ammonia was mainly removed in the 0~0.8 m layer of the filter. CODMn was evidently removed in each section of the filter layer, and NH4+-N was mainly removed in the 0~0.8 m layers of the filter. Biological CODMn, Mn2+, and NH4+-N removal all followed the first-order kinetic reaction. As the influent Mn2+ gradually increased from 0 to about 0.5, 1, and 2 mg/L, the efficiency of CODMn removal along the filter layer was significantly improved, but the efficiency of NH4+-N removal was slightly improved. The kinetic constant k of biological CODMn removal significantly increased, while the kinetic constant k of biological Mn2+ and NH4+-N removal gradually increased. Full article
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