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Separations
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Application of Green Separation Technology in Wastewater Treatment
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Application of Green Separation Technology in Wastewater Treatment

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Purification Technology".

Deadline for manuscript submissions: closed (20 July 2023) | Viewed by 1350

Special Issue Editor

Dr. Zaira Chowdhury

E-Mail Website
Guest Editor
Nanotechnology and Catalysis Research Center, University of Malaya, Kuala Lumpur 50603, Malaysia
Interests: water treatment; nanotechnology; smart materials; structured carbon for energy and environmental application; catalytic separation; nanoparticles for antioxidant development; antimicrobial activity of materials

Special Issue Information

Dear Colleagues,

The separation of organic or inorganic pollutant materials using membrane, adsorption, and catalytic degradation, as well as Fenton processes, is prominent. The synthesis of structured carbon and nanoparticles plays a vital role in the sustainable separation of foreign components from water, air and soil to preserve an eco-friendly environment. The functionalization of structured nano or microporous materials can extract value-added products such as carbon or biofuel from lingo-cellulosic residues. Moreover, the functionalization of nanoparticles can also enhance antioxidant properties for scavenging free radicles. This Special Issue aims to highlight smart, structured micro or nanoporous materials for industrial applications. Some potential topics might include, but are not limited to: innovative synthesis protocols based on advanced nanotechnology; smart materials; novel preparation; and eco-friendly, sustainable manufacturing technology. Authors are also encouraged to highlight the performance of synthesized materials in versatile fields for the separation of pollutant particles from water, soil, gas, and other process streams.

Our expectation is that this Special Issue will receive attention from process engineers, scientists, scholars, and readers, and consequently will motivate further investigation in this field. This Special Issue will emphasize the various issues and properties of current research trends related to innovative advanced material development and their application in the versatile field of the energy and environment sector.

Dr. Zaira Chowdhury
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. Separations is an international peer-reviewed open access monthly 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 2600 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

  • adsorption
  • catalytic degradation
  • nanomaterials
  • anti-oxidant activities
  • structured carbon
  • pyrolysis
  • hydrothermal extraction
  • ligno-cellulosic biomass
  • desalination
  • water purification and processing
  • pollutant separation from gas and soil

Published Papers (2 papers)

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Research

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19 pages, 6437 KiB  
Article
The Effect of the Elemental Composition of Municipal Sewage Sludge on the Phosphorus Recycling during Pyrolysis, with a Focus on the Char Chemistry—Modeling and Experiments
by Naeimeh Vali, Aurélie Combres, Aida Hosseinian and Anita Pettersson
Separations 2023, 10(1), 31; https://doi.org/10.3390/separations10010031 - 4 Jan 2023
Cited by 5 | Viewed by 1495
Abstract
The present study investigates how the original sewage sludge characteristics influence the composition of sewage sludge-based chars for land applications. Sewage sludge from two different wastewater treatment plants in Sweden was pyrolyzed at 500, 700, and 900 °C, and the resulting chars were [...] Read more.
The present study investigates how the original sewage sludge characteristics influence the composition of sewage sludge-based chars for land applications. Sewage sludge from two different wastewater treatment plants in Sweden was pyrolyzed at 500, 700, and 900 °C, and the resulting chars were analyzed. Thermodynamic equilibrium calculations (TEC), together with chemical fractionation, were implemented to simulate the char after the pyrolysis process at different temperatures. The results showed that, in general, for both the municipal sewage sludge (MSS), phosphorus (P) was significantly retained in the char at various temperatures. However, no specific correlation could be found between the pyrolysis temperature and the amount of P remaining. With regard to the heavy metals removed from the char after the pyrolysis reaction, the concentrations of copper, chromium, lead, nickel, zinc, and cadmium were below the limits of the Swedish regulations for farmland application. Full article
(This article belongs to the Special Issue Application of Green Separation Technology in Wastewater Treatment)
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Review

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29 pages, 6812 KiB  
Review
Removal of Azo Dyes from Aqueous Effluent Using Bio-Based Activated Carbons: Toxicity Aspects and Environmental Impact
by Ahmed Elsayid Ali, Zaira Zaman Chowdhury, Ramprosad Devnath, Md. Mostak Ahmed, Md. Mahfujur Rahman, Khalisanni Khalid, Yasmin Abdul Wahab, Irfan Anjum Badruddin, Sarfaraz Kamangar, Mohamed Hussien, Khalid Husain Pallan and Ajita Mitra
Separations 2023, 10(9), 506; https://doi.org/10.3390/separations10090506 - 15 Sep 2023
Cited by 5 | Viewed by 2939
Abstract
Rapid growth in various industrial fields has introduced a series of new environmental risks. The textile industry is one of the major industries that is influenced by rapid advancements in technological sectors. The development in textile dying technologies has presented new types of [...] Read more.
Rapid growth in various industrial fields has introduced a series of new environmental risks. The textile industry is one of the major industries that is influenced by rapid advancements in technological sectors. The development in textile dying technologies has presented new types of dyes that are toxic to the ecosystem. Azo dyes are the main artificial dyes used in textiles, food, and other applications. Typically, these dyes are introduced into the environment as wastewater discharged from factories. The discharged influence penetrates the ecosystem and causes deadly diseases to human and animals. Several studies present activated carbon as a proper solution to eliminating the presence of azo dyes in the environment. However, various types of azo dye have different properties and chemical structures. Thus, there is a crucial need for more studies on the application of activated carbons to eliminate the presence of azo dyes in the environment. This paper discusses the toxic effects of azo dyes on the environment and human health. Moreover, this work presents a general review of the preparation of activated carbon and the parameters that influence the adsorption performance. Full article
(This article belongs to the Special Issue Application of Green Separation Technology in Wastewater Treatment)
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