Special Issue "Selected Papers from XIII Scientific Conference “Membranes and Membrane Processes in Environmental Protection” (MEMPEP 2021)"

A special issue of Membranes (ISSN 2077-0375).

Deadline for manuscript submissions: closed (31 August 2021).

Special Issue Editors

Dr. Mariola Rajca
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Guest Editor
Silesian University of Technology, Faculty of Energy and Environmental Engineering, Konarskiego 18, PL-44100 Gliwice, Poland
Interests: water and wastewater treatment; membrane processes; photocatalytic membrane reactors; membrane fouling; ion exchange; mine water; geothermal water; chitosan; natural organic matter; disinfection byproduct; nanomaterials
Special Issues and Collections in MDPI journals
Prof. Dr. Michał Bodzek
E-Mail Website
Co-Guest Editor
Institute of Environmental Engineering Polish Academy of Sciences, Zabrze, Poland
Interests: water and wastewater treatment; membrane processes; membrane reactors; membrane fouling; micropollutants; mine; geothermal and mineral water; natural organic matter; disinfection byproduct; nanomaterials
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

"Due to the COVID-19 situation the MEMPEP conference is moved to the 2021."

This Special Issue includes selected papers presented at the XIII Scientific Conference “Membranes and Membrane Processes in Environmental Protection” (MEMPEP 2021), to be held from 9 June to 12 June, 2012, in Zakopane, Poland.

Membrane techniques have found a wide range of applications in environmental protection. Thus, the review and coordination current researches are aimed and justified. The active participation of industrial partners who apply membrane processes into the industrial practice is also highly desired. It has all been revealed by a series of membrane conferences regularly organized since 1995.

The aim of the conference is to sum up the recent progress in the application of membrane processes, mainly in environmental protection but also in other branches of industry.

The main topics discussed during conference’s sessions are as follows:

  • The production and characteristics of membranes due to their further application in environmental protection;
  • The modelling of membrane processes and other engineering concepts;
  • The desalination of water and wastewater with the use of membrane techniques;
  • Membranes in water and wastewater treatment technology;
  • Hybrid membrane processes;
  • Pervaporation, membrane distillation, and gas separation;
  • Fuel cells;
  • The application of membranes in biotechnology;
  • Membranes in environmental monitoring;
  • Membrane reactors;
  • Membrane removal of micropollutants from various environmental species.

Note: Submissions from the attendees will enjoy a 20% discount on the article processing charge (APC)!

Dr. Mariola Rajca
Prof. Dr. Michał Bodzek
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 papers will be 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. Membranes 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 1800 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.

Published Papers (4 papers)

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Research

Article
Comparison of the Possibilities of Environmental Usage of Sewage Sludge from Treatment Plants Operating with MBR and SBR Technology
Membranes 2021, 11(9), 722; https://doi.org/10.3390/membranes11090722 - 21 Sep 2021
Viewed by 590
Abstract
Sewage sludge from sewage treatment plants has soil-forming and fertilising properties. However, sewage sludge cannot always be used in nature, including agriculture. One of the main reasons is the concentration of heavy metals. Sludge from wastewater treatment plants operating in MBR (membrane biological [...] Read more.
Sewage sludge from sewage treatment plants has soil-forming and fertilising properties. However, sewage sludge cannot always be used in nature, including agriculture. One of the main reasons is the concentration of heavy metals. Sludge from wastewater treatment plants operating in MBR (membrane biological reactor) and SBR (sequential batch reactor) systems was analysed. Studies comparing the risk analysis of the natural use of sludge from MBR and SBR treatment plants were performed for the first time, due to the fact that more and more MBR plants, which are a BAT technology, are being developed in Poland, displacing the classical SBR plants. MBR technology uses a combination of activated sludge and filtration with microfiltration membranes. Wastewater treated in these reactors meets the highest quality standards, both in terms of physicochemical and microbiological aspects. This paper presents studies on the mobility of heavy metals in sewage sludge carried out using the BCR sequential extraction method. Geo-accumulation index (GAI), potential environmental risk index (ER), risk assessment code (RAC), and environmental risk determinant (ERD) were calculated. Heavy metals dominated the stable fractions in all cases. Furthermore, an increased content of copper and cadmium was observed in the MBR sludge. This fact is favourable in view of the efforts to eliminate heavy metals in the environment. Full article
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Article
Sorption of Heavy Metals by Sewage Sludge and Its Mixtures with Soil from Wastewater Treatment Plants Operating in MBR and INR Technology
Membranes 2021, 11(9), 706; https://doi.org/10.3390/membranes11090706 - 14 Sep 2021
Viewed by 691
Abstract
Sewage sludge is a very complex system, with solids and water. It is generated as waste from wastewater treatment. Sewage sludge is used to fertilize agricultural and forest areas and to rehabilitate devastated areas. It is a good organic fertilizer because it contains [...] Read more.
Sewage sludge is a very complex system, with solids and water. It is generated as waste from wastewater treatment. Sewage sludge is used to fertilize agricultural and forest areas and to rehabilitate devastated areas. It is a good organic fertilizer because it contains significant amounts of nutrients beneficial for plant development and humus-forming substances. The composition of sludge from municipal wastewater treatment plants is similar to soil organic matter, therefore it can be used to improve the physicochemical properties of soil, increasing its sorption capacity. Research material was collected in the Swietokrzyskie and Mazowieckie Voivodships. Sewage sludge was collected from the wastewater treatment plants in Sitkowka Nowiny (Sitkowka) and Kunow, as well as high-quality agricultural soil from Opatowiec and sandy-clay soil from Jastrzebie. Research was carried out on the sorption of heavy metals (Cd, Cr, Cu, Pb, Ni, Zn) by mixtures of sewage sludge with soil. The calculations were made for the concentrations of heavy metals in sewage sludge, soil, and sewage sludge–soil mixtures. The geoaccumulation index (Igeo) and the risk assessment code (RAC) were calculated. Increased sorption capacity was demonstrated in samples with a predominance of sewage sludge. It was shown that heavy metals from sewage sludge, after mixing with soil, changed their form from immobile to mobile. Full article
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Article
2,6-Bis((benzoyl-R)amino)pyridine (R = H, 4-Me, and 4-NMe2) Derivatives for the Removal of Cu(II), Ni(II), Co(II), and Zn(II) Ions from Aqueous Solutions in Classic Solvent Extraction and a Membrane Extraction
Membranes 2021, 11(4), 233; https://doi.org/10.3390/membranes11040233 - 25 Mar 2021
Cited by 2 | Viewed by 647
Abstract
In this paper, the application of new substituted 2,6-bis((benzoyl-R)amino)pyridine (R = H, 4-Me, and 4-NMe2) derivatives for the recovery of copper(II), nickel(II), cobalt(II), and zinc(II) ions from aqueous solutions was described. The structures of the synthesized compounds were confirmed by nuclear [...] Read more.
In this paper, the application of new substituted 2,6-bis((benzoyl-R)amino)pyridine (R = H, 4-Me, and 4-NMe2) derivatives for the recovery of copper(II), nickel(II), cobalt(II), and zinc(II) ions from aqueous solutions was described. The structures of the synthesized compounds were confirmed by nuclear magnetic resonance spectroscopy (NMR), electrospray ionization high-resolution mass spectrometry (ESI HRMS), and tandem mass spectrometry methods (HCD MS/MS). Three different derivatives of 2,6-bis((benzoyl-R)amino)pyridine were used as carriers in membrane processes and as extractants in classic solvent extraction. In each case, the single derivative recovery was carried out on a model solution that contained only one type of metal ions. Spectrophotometry studies were performed to determine the stability constants of the complexes formed by the synthesized species with analyzed metals ions. The results obtained indicate that the synthesized compounds form stable complexes with Cu(II), Ni(II), Co(II), and Zn(II) ions and can be used in both types of studied recovery processes. However, the effectiveness of the synthesized compounds in the recovery of metal ions depends both on the structure of compounds and properties of metals as well as on their concentration. Full article
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Article
N,N’-Bis(salicylidene)ethylenediamine (Salen) as an Active Compound for the Recovery of Ni(II), Cu(II), and Zn(II) Ions from Aqueous Solutions
Membranes 2020, 10(4), 60; https://doi.org/10.3390/membranes10040060 - 02 Apr 2020
Cited by 3 | Viewed by 1130
Abstract
In this paper, three main methods of metal ion separation, i.e., liquid–liquid extraction, transport across polymer inclusion membranes (PIMs), and sorption/desorption, are described. In all of them, N,N’-bis(salicylidene)ethylenediamine (salen) was used as an active compound, i.e., as an extractant or [...] Read more.
In this paper, three main methods of metal ion separation, i.e., liquid–liquid extraction, transport across polymer inclusion membranes (PIMs), and sorption/desorption, are described. In all of them, N,N’-bis(salicylidene)ethylenediamine (salen) was used as an active compound, i.e., as an extractant or as a carrier for the recovery of Ni(II), Cu(II), or Zn(II) ions from aqueous solutions. In each case, the recovery was performed on a model solution, which contained only a single metal ion. The obtained results were compared with the author’s previous results for the separation of metal ions using β-diketones, since both β-diketones and salen form the so-called Werner-type complexes. Electrospray ionization high-resolution mass spectrometry (ESI-HRMS) was also applied to confirm the ability of the carrier to form complexes with metal ions in a solution. Moreover, spectrophotometry was used to determine the stability constant of the obtained complexes. Full article
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