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Advanced Chemical Approaches and Technologies in Water Treatment

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Applied Chemistry".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 983

Special Issue Editor

College of Environmental Science and Engineering, Ministry of Education, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
Interests: chemical approaches in water treatment; pollutant degradation; co-metabolism; microbial community structures; azo dye; anthraquinone dye; metagenomics; metaproteomics; molecular mechanism

Special Issue Information

Dear Colleagues,

The purpose of water treatment is to improve water quality to meet certain water quality standards. The scope of this new Special Issue includes chemical, biological, and biochemical processes aiming to increase sustainable water quality, as well as water environmental monitoring and remediation. This includes, but is not limited to, activated sludge processes, fixed biofilm processes, and combined biological processes; physical and chemical methods, such as granular media filtration, activated carbon adsorption, chemical precipitation, membrane processes, etc.; and natural treatment methods, such as stabilization ponds, oxidation ditches, and constructed wetlands.

We encourage submissions focusing broadly on molecular biology, biochemistry, genetics, metabolic engineering, synthetic biology, and data analytics with biotechnological applications. We are also eager to publish papers describing biotechnological process development, including bioreactor design and scale-up.

Chemical and biological approaches in water treatment focuses on the following areas:

  • Development and application of new chemical flocculant.
  • Biodegradation.
  • Anaerobic/aerobic treatment.
  • Metabolic engineering.
  • Cell-free and immobilized enzyme processes.
  • Enzyme engineering, production, and analysis.
  • Chemicals’ life cycle assessments and environmental impact analyses.

Dr. Xuehui Xie
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. Molecules 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 2700 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

  • wastewater
  • refractory pollutants
  • biodegradation
  • chemical flocculants
  • anaerobic/aerobic
  • life cycle assessment
  • environmental impact analysis

Published Papers (1 paper)

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Research

12 pages, 1308 KiB  
Article
Effective Removal of Different Heavy Metals Ion (Cu, Pb, and Cd) from Aqueous Solutions by Various Molecular Weight and Salt Types of Poly-γ-Glutamic Acid
by Sheng-Yen Tsai, Chao-Kai Chang, Pei-Yu Wei, Shi-Ying Huang, Mohsen Gavahian, Shella Permatasari Santoso and Chang-Wei Hsieh
Molecules 2024, 29(5), 1054; https://doi.org/10.3390/molecules29051054 - 28 Feb 2024
Viewed by 791
Abstract
In light of industrial developments, water pollution by heavy metals as hazardous chemicals has garnered attention. Addressing the urgent need for efficient heavy metal removal from aqueous environments, this study delves into using poly-γ-glutamic acid (γ-PGA) for the bioflocculation of heavy metals. Utilizing [...] Read more.
In light of industrial developments, water pollution by heavy metals as hazardous chemicals has garnered attention. Addressing the urgent need for efficient heavy metal removal from aqueous environments, this study delves into using poly-γ-glutamic acid (γ-PGA) for the bioflocculation of heavy metals. Utilizing γ-PGA variants from Bacillus subtilis with different molecular weights and salt forms (Na-bonded and Ca-bonded), the research evaluates their adsorption capacities for copper (Cu), lead (Pb), and cadmium (Cd) ions. It was found that Na-bonded γ-PGA with a high molecular weight showed the highest heavy metal adsorption (92.2–98.3%), particularly at a 0.5% concentration which exhibited the highest adsorption efficiency. Additionally, the study investigated the interaction of γ-PGA in mixed heavy metal environments, and it was discovered that Na-γ-PGA-HM at a 0.5% concentration showed a superior adsorption efficiency for Pb ions (85.4%), highlighting its selectivity as a potential effective biosorbent for wastewater treatment. This research not only enlightens the understanding of γ-PGA’s role in heavy metal remediation but also underscores its potential as a biodegradable and non-toxic alternative for environmental cleanup. The findings pave the way for further exploration into the mechanisms and kinetics of γ-PGA’s adsorption properties. Full article
(This article belongs to the Special Issue Advanced Chemical Approaches and Technologies in Water Treatment)
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