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Emerging Technologies in Wastewater Treatment and Resource Recovery: Recent Advances, Challenges and Future Trends

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Environmental Sustainability and Applications".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 2520

Special Issue Editors


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Guest Editor
Department of Chemistry, Laboratoire d’Ingénierie, d’Electrochimie, de Modélisation et d’Environnement, Faculty of Sciences Dhar El Mahraz , Sidi Mohamed Ben Abedellah University, Fes 30030, Morocco
Interests: advanced materials; treatment of emergent pollutants; wastewater treatment biomaterials; advanced technologies

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Guest Editor
Laboratory of Process and Environmental Engineering, Higher School of Technology, Hassan II University of Casablanca, Casablanca, Morocco
Interests: water treatment; synthesis and characterization of materials and nanomaterials; advanced oxidation processes; heterogeneous photocatalysis; environmental chemistry

Special Issue Information

Dear Colleagues,

Water pollution has been a common challenge the world over because it is a major problem affecting human health and the aquatic environment. Emergent pollutants are introduced into freshwater from a variety of industrial and human activities involving mining, processing, and leaching from uncontrolled landfill sites or the use of substances that contain toxic pollutants, such as metals, textile dyes, and pesticides, etc. Furthermore, extra chemicals, energy consumption, as well as greenhouse gases emissions from conventional wastewater treatment have been of interest to researchers. In recent decades, several advanced technologies have been employed for municipal wastewater management. These methods include: electrochemical methods, electrodialysis membrane, semiconductor photocatalysts, dialysis processes, anaerobic membrane bioreactor, advanced oxidation processes and adsorption onto developed-materials-based biomasses. There is a need, however, to find alternative approaches suitable for achieving the sustainable development goals. The purpose of this Special Issue is to discuss the challenges and opportunities of advanced materials and developed technologies for wastewater treatment and resource recovery. The issue’s focus is on new hybrid methods and advanced technologies, concepts, and process designs to sustainably remove emergent pollutants. Additionally, authors may report on the feasibility of using these advanced technologies and their economical approaches for full-scale applications.

Prof. Dr. Hanane Tounsadi
Prof. Dr. Alaâeddine Elhalil
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

  • resource recovery
  • water contamination or pollution
  • sustainability
  • water desalination
  • emergent pollutants
  • advanced materials
  • advanced technologies
  • sustainable development
  • economical approaches
  • biomass, bioenergy
  • full-scale applications

Published Papers (1 paper)

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Research

12 pages, 999 KiB  
Article
Old Landfill Leachate and Municipal Wastewater Co-Treatment by Sequencing Batch Reactor Combined with Coagulation–Flocculation Using Novel Flocculant
by Radhakrishnan Naresh Kumar, Somya Sadaf, Mohini Verma, Shubhrasekhar Chakraborty, Shweta Kumari, Veerababu Polisetti, Parashuram Kallem, Jawed Iqbal and Fawzi Banat
Sustainability 2023, 15(10), 8205; https://doi.org/10.3390/su15108205 - 18 May 2023
Cited by 4 | Viewed by 2061
Abstract
The use of novel flocculants in combination with a sequencing batch reactor (SBR) for the treatment of landfill leachate and municipal wastewater has been shown to be an effective method for reducing polluted effluents. Co-treatment of landfill leachate with a mixture of municipal [...] Read more.
The use of novel flocculants in combination with a sequencing batch reactor (SBR) for the treatment of landfill leachate and municipal wastewater has been shown to be an effective method for reducing polluted effluents. Co-treatment of landfill leachate with a mixture of municipal wastewater was performed at 5%, 10%, 15% and 20% in SBR and effluent was treated by coagulation–flocculation. SBR with 6 d hydraulic retention time (HRT) and 30 d solids retention time (SRT) removed 58 to 70% COD, 86 to 93% ammonia, 76 to 83% nitrate and 69 to 95% phosphate. Coagulation–flocculation with different dosages of alum and ferric chloride with polyacrylamide grafted gum ghatti (GGI-g-PAM) as a novel flocculant was used for chemical oxygen demand (COD), turbidity, total suspended solids (TSS) and color removal. Maximum COD removal was at 20% leachate, which was 74% with alum at 2800 mg/L and 77% with ferric chloride at 470 mg/L. Alum and ferric chloride with GGI-g-PAM flocculant removed 96% and 82% of turbidity and 80% and 82% TSS, respectively. At 20% leachate, combined treatment with SBR and coagulation–flocculation resulted in the total removal of 89% COD, 83% ammonia, 82% nitrate 98% turbidity and 93% TSS with alum. The combined treatment with ferric chloride resulted in a removal of 90% COD, 86% ammonia, 83% nitrate, 98% turbidity and 94% TSS. Except for nitrate combined treatment with both the coagulants at 20% landfill leachate to municipal wastewater ratio removed COD, ammonia, phosphate and TSS to a level that met international standards for discharges to inland surface water. As such, the use of new flocculants with SBR can help reduce water pollution from landfill leachate and municipal wastewater. In addition to coagulation–flocculation, other physico–chemical processes can also be studied as post-treatment options for the co-treatment of wastewater mixture. Full article
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