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Membranes
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Membrane Processes for Removing Contaminants of Emerging Concern in Water...
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Membrane Processes for Removing Contaminants of Emerging Concern in Water and Wastewater

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Applications".

Deadline for manuscript submissions: closed (20 May 2022)

Special Issue Editors

Dr. Nirupam Aich

E-Mail Website
Guest Editor
Department of Civil, Structural and Environmental Engineering, University at Buffalo, 232 Jarvis Hall, Buffalo, NY 14260, USA
Interests: nanohybrids; water treatment; sustainable nanotechnology; safer design
Special Issues, Collections and Topics in MDPI journals
Dr. A H M Anwar Sadmani

E-Mail Website
Guest Editor
Department of Civil, Environmental and Construction Engineering, University of Central Florida, 12800 Pegasus Dr., Orlando, FL 32816, USA
Interests: membrane treatment of contaminants of emerging concern; membrane-based hybrid processes for treating impaired-quality waters; membrane fouling; impact of source water matrices on membrane-micropollutant interactions

Special Issue Information

Dear Colleagues,

The growing demand for adequate quality water sources has steered many water industries towards the exploitation of additional and alternative impaired-quality sources of water. Many such water sources, in addition to the conventional sources, are contaminated with trace concentrations of contaminants of emerging concern (CEC) including pharmaceuticals and personal care products (PPCP), pesticides, steroids and hormones, surfactants, flame retardants, and other industrial chemicals. Membrane processes have been demonstrated to be promising barriers to a wide variety of CECs. Membrane separation processes, however, are highly dependent on the physico-chemical properties of the membrane and CECs as well as the compositions of the water matrices to be treated. Furthermore, membrane water treatment processes must endure fouling, which presents a significant drawback in their applications. These challenges can be overcome through hybridizing membrane processes with other advanced treatment methods as well as by incorporating nanomaterials into the membrane matrices.

This Special Issue aims to cover the recent research progresses in the application of conventional, hybrid, and nanomaterial-enhanced membrane processes in removing various classes of CECs in water and wastewater, and membrane fabrication, functionalization, and characterization targeting the enhancement of CEC removal efficiencies while reducing membrane fouling potential.

Dr. Nirupam Aich
Dr. A H M Anwar Sadmani
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. 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 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.

Dr. Nirupam Aich
Dr. A H M Anwar Sadmani
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. 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 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

  • membrane
  • contaminants of emerging concern
  • water treatment
  • wastewater treatment
  • fouling
  • functionalization
  • nanomaterial
  • nanoparticle
  • hybrid

Published Papers (1 paper)

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Research

18 pages, 3430 KiB  
Article
Effects of Pressurized Aeration on the Biodegradation of Short-Chain Chlorinated Paraffins by Escherichia coli Strain 2
by Yongxing Qian, Wanling Han, Fuhai Zhou, Bixiao Ji, Huining Zhang and Kefeng Zhang
Membranes 2022, 12(6), 634; https://doi.org/10.3390/membranes12060634 - 19 Jun 2022
Cited by 1 | Viewed by 1805
Abstract
Short-chain chlorinated paraffins (SCCPs) were defined as persistent organic pollutants in 2017, and they can migrate and transform in the environment, accumulate in organisms, and amplify through the food chain. Although they pose a serious threat to environmental safety and human health, there [...] Read more.
Short-chain chlorinated paraffins (SCCPs) were defined as persistent organic pollutants in 2017, and they can migrate and transform in the environment, accumulate in organisms, and amplify through the food chain. Although they pose a serious threat to environmental safety and human health, there are few papers on their removal. The current SCCP removal methods are expensive, require severe operating conditions, involve time-consuming biological treatment, and have poor removal specificities. Therefore, it is important to seek efficient methods to remove SCCPs. In this paper, a pressurized reactor was introduced, and the removal performance of SCCPs by Escherichia coli strain 2 was investigated. The results indicated that moderate pure oxygen pressurization promoted bacterial growth, but when it exceeded 0.15 MPa, the bacterial growth was severely inhibited. When the concentration of SCCPs was 20 mg/L, the removal rate of SCCPs was 85.61% under 0.15 MPa pure oxygen pressurization for 7 days, which was 25% higher than at atmospheric pressure (68.83%). In contrast, the removal rate was only 69.28% under 0.15 MPa air pressure. As the pressure continued to increase, the removal rate of SCCPs decreased significantly. The total amount of extracellular polymeric substances (EPS) increased significantly upon increasing the pressure, and the amount of tightly bound EPS (TB-EPS) was higher than that of loosely bound EPS (LB-EPS). The pressure mainly promoted the secretion of proteins in LB-EPS. Furthermore, an appropriate pure oxygen pressure of 0.15 MPa improved the dehydrogenase activity. The gas chromatography–mass spectrometry (GC–MS) results indicated that the degradation pathway possibly involved the cleavage of the C–Cl bond in SCCPs, which produced Cl−, followed by C–C bond breaking. This process degraded long-chain alkanes into short-chain alkanes. Moreover, the main degradation products detected were 2,4-dimethylheptane (C9H20), 2,5-dimethylheptane (C9H20), and 3,3-dimethylhexane (C8H18). Full article
(This article belongs to the Special Issue Membrane Processes for Removing Contaminants of Emerging Concern in Water and Wastewater)
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