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Sustainability
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Sustainable Water Quality Management: Challenges and Opportunities
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Sustainable Water Quality Management: Challenges and Opportunities

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

Deadline for manuscript submissions: closed (15 May 2023) | Viewed by 4050

Special Issue Editors

Prof. Dr. Ranjith Kumar Manoharan

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Guest Editor
Department of Civil Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Interests: wastewater treatment processes; antibiotic degradation; antibiotic resistance; multi-drug-resistance genes
Special Issues, Collections and Topics in MDPI journals
Dr. Sathiyaraj Srinivasan

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Guest Editor
Department of Bio & Environmental Technology, Division of Environmental & Life Science, College of Natural Science, Seoul Women's University, Seoul 139774, Republic of Korea
Interests: microbiology; taxonomy; genomics; radiation resistance: bacteria; yeast; RNASeq; metagenome
Special Issues, Collections and Topics in MDPI journals
Dr. Barathi Selvaraj

E-Mail Website
Guest Editor
School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
Interests: environmental biodegradation; environmental biotechnology; biodegradation; biological wastewater treatment; environmental bioremediation; microbial technology; membrane bioreactors (MBRs)

Special Issue Information

Dear Colleagues,

Water pollution and resource scarcity are considered major challenges in this decade. Although researchers have developed various technologies for recovering resources from waste, there are some limitations to the existing technologies. Therefore, cutting-edge, novel, eco-friendly technologies are still needed. As a result of population expansion, industrial demand, and living conditions, water demand is currently increasing steadily. The regular usage of chemicals in routine tasks and free access to medications have boosted waste generation and intensified the emission of both traditional and novel organic compounds into the environment. Emerging organic contaminants, or EOCs, are newly formed substances that have recently become more noticeable. Due to their constant distribution to the environment, they are regarded as persistent despite being present at low concentrations.

This Special Issue’s goal is to examine the perspectives from research and the scientific methods put forth to determine the existing difficulties in attaining a more inclusive, sustainable, and resilient future. We will advance our knowledge of the recovery of renewable resources from water treatment in this Special Issue, which will compile original research articles and reviews describing ways to improve our existing water treatment. Topics of interest include, but are not limited to, the following:

  1. Promising experimental studies to treat emerging contaminants in water by using eco-friendly technologies.
  2. Removal of organic and inorganic contaminants as well as heavy metals from water using adsorption, oxidation, microbial applications, etc.

Prof. Dr. Ranjith Kumar Manoharan
Dr. Sathiyaraj Srinivaan
Dr. Barathi Selvaraj
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. 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

  • water treatment
  • heavy metals
  • contaminant removal
  • antibiotics
  • emerging contaminants
  • biological treatment
  • environmental biodegradation
  • biomaterial

Published Papers (3 papers)

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Research

16 pages, 9632 KiB  
Article
Evaluating the Influence of Land Use and Landscape Pattern on the Spatial Pattern of Water Quality in the Pearl River Basin
by Xuewen Liang, Yue Pan, Cunwu Li, Weixiong Wu and Xusheng Huang
Sustainability 2023, 15(20), 15146; https://doi.org/10.3390/su152015146 - 23 Oct 2023
Cited by 2 | Viewed by 814
Abstract
Differences in land use and landscape patterns have become crucial factors affecting regional water quality. In order to investigate the effects of different land use and landscape patterns on water quality, this study used dissolved oxygen (DO), ammonia nitrogen (NH4+-N), [...] Read more.
Differences in land use and landscape patterns have become crucial factors affecting regional water quality. In order to investigate the effects of different land use and landscape patterns on water quality, this study used dissolved oxygen (DO), ammonia nitrogen (NH4+-N), and potassium permanganate index (CODMn) from 147 conventional water quality monitoring stations in the Pearl River basin of China from January to December 2021 as representative water quality parameters. The quantitative relationship between land use, landscape pattern, and water quality in the Pearl River basin was investigated using geographic information system technology (GIS) and partial least squares (PLS). The results showed that the overall water quality of the Pearl River basin was relatively positive and mainly threatened by organic pollution. The water quality of the Pearl River basin was affected by the spatial characteristics of land use and landscape pattern, showing a poorer spatial pattern on the eastern and western ends and a better one in the central part of the basin. The developed PLS regression model could better explain the quantitative relationship between water quality, land use, and landscape pattern, concluding that unused urban land has the greatest impact on water quality, with an impact coefficient of more than 0.10. The interspersion juxtaposition index (IJI) for representing landscape patterns had the greatest impact on water quality indicators, with an impact coefficient of −0.15 on DO, 0.13 on NH4+-N, and 0.15 on CODMn, respectively. Meanwhile, land use types such as unused land and water and landscape patterns indicated by the Shannon diversity index (SHDI) and the contagion index (CONTAG) had significant effects on watershed water quality. The results of the study provide a reference value for the optimal adjustment of land use structure and water quality improvement in the basin. Full article
(This article belongs to the Special Issue Sustainable Water Quality Management: Challenges and Opportunities)
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15 pages, 3500 KiB  
Article
Adsorption of Pb2+ Ions from Aqueous Solution onto Porous Kappa-Carrageenan/Cellulose Hydrogels: Isotherm and Kinetics Study
by Karuppiah Kalaiselvi, Sonaimuthu Mohandoss, Naushad Ahmad, Mohammad Rizwan Khan and Ranjith Kumar Manoharan
Sustainability 2023, 15(12), 9534; https://doi.org/10.3390/su15129534 - 14 Jun 2023
Cited by 1 | Viewed by 1202
Abstract
Heavy metal ion pollution poses severe health risks. In this study, a kappa-carrageenan/cellulose (κ-CG/CL) hydrogel was prepared using a facile one-step method to remove Pb2+ ions from aqueous solutions. The functional groups and crystallinity nature of κ-CG/CL hydrogel have been identified via [...] Read more.
Heavy metal ion pollution poses severe health risks. In this study, a kappa-carrageenan/cellulose (κ-CG/CL) hydrogel was prepared using a facile one-step method to remove Pb2+ ions from aqueous solutions. The functional groups and crystallinity nature of κ-CG/CL hydrogel have been identified via Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). In contrast, the porous morphology and size distribution on the surface of κ-CG/CL hydrogel with a pore size of 1–10 μm were identified using scanning electron microscope (SEM) and Brunauer–Emmett–Teller (BET) surface area analysis. The as-prepared κ-CG/CL hydrogel effectively removed Pb2+ ions, primary environmental pollutants. The effects of pH and contact time on Pb2+ adsorption were studied along with the adsorption isotherms and kinetics of Pb2+ adsorption onto the hydrogels from aqueous solutions. Notably, the aqueous solutions were effectively treated with the prepared κ-CG/CL hydrogels to remove Pb2+ ions. The adsorption results fit well with pseudo-first- and second-order kinetic, Elovich, intra-particle diffusion, and Langmuir and Freundlich isotherm models. Based on the fitting results, the maximum adsorption capacity was obtained with the Freundlich isotherm model of κ-CG/CL hydrogel found to be 486 ± 28.5 mg/g (79%). Reusability studies revealed that the κ-CG/CL hydrogel could remove Pb2+ ions with more than 79% removal efficiency after eight adsorption–desorption cycles. In addition, its mechanism for efficiently adsorbing and removal of Pb2+ ions was analyzed. These findings imply that the κ-CG/CL hydrogel has substantial potential for application in removing and recycling heavy metal ions from aqueous solutions. Full article
(This article belongs to the Special Issue Sustainable Water Quality Management: Challenges and Opportunities)
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14 pages, 1813 KiB  
Article
Controlling Arsenic Accumulation in Rice Grain under Nanomaterials-Assisted Optimal Greenhouse Set-Up
by Muhammad Nur Aiman Uda, Subash C. B. Gopinath, Uda Hashim, Muhammad Nur Afnan Uda, Tijjani Adam, Nor Azizah Parmin, Sreeramanan Subramaniam, Suresh V. Chinni, Veeranjaneya Reddy Lebaka and Ramachawolran Gobinath
Sustainability 2023, 15(3), 2633; https://doi.org/10.3390/su15032633 - 1 Feb 2023
Cited by 3 | Viewed by 1468
Abstract
Rice is being increasingly exposed to inorganic arsenic and this affects half of the world population because they are rice consumers. In this study, pot experiments were carried out to investigate the effect of two dose-dependent nanomaterials (silica and graphene) treatment on varied [...] Read more.
Rice is being increasingly exposed to inorganic arsenic and this affects half of the world population because they are rice consumers. In this study, pot experiments were carried out to investigate the effect of two dose-dependent nanomaterials (silica and graphene) treatment on varied arsenic levels (2, 7 and 12 mg/kg). The results showed that both nanomaterials were affected significantly with 1 mg/mL of nanomaterial. Arsenic adversely affected the plant height, tillering, number of grains, and grain weight and when high concentrations of arsenic were applied at 12 mg/kg, the plant could not withstand it and died before 75 days even in the presence of graphene. Based on inductively coupled plasma mass spectrometry analysis, silica nanoparticles showed the highest inhibition on the total accumulation of arsenic as 93% (control plant), 84% (2 mg/kg), 67% (7 mg/kg) to 35 % (12 mg/kg), whereas graphene showed lower inhibition percentages. This outcome confirms that silica nanoparticles prevent arsenic uptake, because they translocate from the root to the grains and are able to offer a promising way to reduce consumer health risk. Full article
(This article belongs to the Special Issue Sustainable Water Quality Management: Challenges and Opportunities)
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