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Membrane Processes for the Metal-ion/Pollutants Detection on Water and Treatment...
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Membrane Processes for the Metal-ion/Pollutants Detection on Water and Treatment of Industrial Wastewaters

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

Deadline for manuscript submissions: closed (28 February 2022) | Viewed by 13064

Special Issue Editor

Dr. Valentina Innocenzi

E-Mail Website
Guest Editor
Department of Industrial and Information Engineering and Economics, University of L'Aquila, 67100 L'Aquila, Italy
Interests: expert in the development of the hydrometallurgical processes for the treatment and recycling of industrial and e-waste aimed for metals and rare earths recovery; other skills on the industrial wastewater treatment with zero liquid discharge approach

Special Issue Information

Dear Colleagues,

Every human and industrial activity involves the use of a certain amount of water; as a result, the production of wastewater is unavoidable. These residual solutions can contain a series of heavy metals and other organic substance functions of the production cycle. As regards sustainable development, it is necessary to treat wastewater to avoid the dispersion of toxic substances into the environment, maximize the reuse of the treated water, and if possible to valorize the coumponds contained in the solutions. In this perspective, membrane processes such as ultrafiltration and reverse osmosis seem to be a promising tecnology to reduce wastewater. Another relevant aspect is the opportunity to use the membranes for the ion and pollutants detection in water that could be useful for the implementation and development of new processes for wastewater treatment. 

This Special Issue on “Membrane Processes for metal ion/pollutants detection on water and treatment of Industrial Wastewaters” of the journal Membranes seeks contributions to assess the state-of-the-art and future developments in the field of wastewater treatments based on membrane processes. Topics include but are not limited to laboratory scale research, pilot research activity, innovative membranes, and their application for detection, the removal/and reuse of inorganic and organic compounds, and demonstration efforts and industrial exploitation. Authors are invited to submit their latest results; both original papers and reviews are welcome.

Dr. Valentina Innocenzi
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. 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 processes
  • Ultrafiltration
  • Reverse osmosis
  • Wastewater treatment
  • Removal and reuse
  • Inorganic and organic substances
  • Sustainable processes

Published Papers (3 papers)

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Research

17 pages, 1992 KiB  
Article
Treatment of Wastewater from a Food and Beverage Industry Using Conventional Wastewater Treatment Integrated with Membrane Bioreactor System: A Pilot-Scale Case Study
by Sabrina Ng Muhamad Ng, Syazwani Idrus, Amimul Ahsan, Tuan Nurfarhana Tuan Mohd Marzuki and Siti Baizura Mahat
Membranes 2021, 11(6), 456; https://0-doi-org.brum.beds.ac.uk/10.3390/membranes11060456 - 21 Jun 2021
Cited by 15 | Viewed by 6162
Abstract
This study compares the performance of the Hollow Fiber (HF) and Flat Sheet (FS) types of membrane bioreactors (MBRs) for the treatment of food and beverage (F&B) industry wastewater in a pilot-scale study of a wastewater treatment plant (WWTP). HF and FS membrane [...] Read more.
This study compares the performance of the Hollow Fiber (HF) and Flat Sheet (FS) types of membrane bioreactors (MBRs) for the treatment of food and beverage (F&B) industry wastewater in a pilot-scale study of a wastewater treatment plant (WWTP). HF and FS membrane configurations were evaluated at two different Mixed Liquor Suspended Solid (MLSS) levels: 6000 mg/L and 12,000 mg/L. The performance of each configuration was evaluated in terms of Chemical Oxygen Demand (COD) and Total Suspended Solid (TSS) removals for effluent quality measurement. The transmembrane pressure (TMP), flux rate, and silt density index (SDI) were monitored and calculated for membrane fouling assessment. The results show that the rejection rates of COD and TSS for HF and FS membrane types were more than 84% for the two different MLSS levels. During the study, the HF membrane recorded 0.3 bar transmembrane pressure, which complies with the recommended range (i.e., two to three times of chemical cleaning). On the other hand, the FS membrane operates without chemical cleaning, and the TMP value was below the recommended range at 0.2 bar. It was found that the flux values recorded for both the HF and FS systems were within the recommended range of 40 L/m2/h. Analysis of SDI revealed that the calculated index ranged between 1 and 2.38 and was within the allowable limit of 3. Both types of MBR consistently achieved an 80% to 95% rejection rate of COD and TSS. Effluent quality measurement of treated F&B wastewater in this pilot-scale study using a WWTP integrated with an MBR indicated a good achievement with compliance with the Malaysia industrial effluent discharge standards. Full article
(This article belongs to the Special Issue Membrane Processes for the Metal-ion/Pollutants Detection on Water and Treatment of Industrial Wastewaters)
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10 pages, 2420 KiB  
Article
Model of Hydraulic Resistance When Forecasting Reverse Osmosis in Water Treatment
by Janina Piekutin and Urszula Kotowska
Membranes 2021, 11(5), 314; https://0-doi-org.brum.beds.ac.uk/10.3390/membranes11050314 - 25 Apr 2021
Cited by 3 | Viewed by 2731
Abstract
The article presents research on the treatment of infiltration water with increased ammonium ion and nitrate(V) content through reverse osmosis. Then, research was conducted on the phenomena related to the decrease in the permeability of the membrane used for the research. The search [...] Read more.
The article presents research on the treatment of infiltration water with increased ammonium ion and nitrate(V) content through reverse osmosis. Then, research was conducted on the phenomena related to the decrease in the permeability of the membrane used for the research. The search for an appropriate interpretation of the phenomena was carried out using mathematical modeling. Based on the assumptions of the hydraulic model of the filtration resistance, calculations were made to forecast the efficiency of the osmotic membrane used in the discussed process. For this purpose, the following indicators were determined experimentally for the membrane: change in the volumetric flow of treated wastewater during low-pressure filtration, total hydraulic resistance, and component resistances, i.e., the resistance of the “new” membrane and resistances resulting from the reversible and irreversible fouling phenomena. It has been observed that irreversible resistance arises in the short and early stages of the process. The efficiency is determined by reversible resistance, which is confirmed by the literature. Full article
(This article belongs to the Special Issue Membrane Processes for the Metal-ion/Pollutants Detection on Water and Treatment of Industrial Wastewaters)
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16 pages, 1671 KiB  
Article
Nanofiltration Process for Enhanced Treatment of RO Brine Discharge
by Mohamed E.A. Ali
Membranes 2021, 11(3), 212; https://0-doi-org.brum.beds.ac.uk/10.3390/membranes11030212 - 18 Mar 2021
Cited by 27 | Viewed by 3454
Abstract
Brine discharge of reverse osmosis (RO) desalination plants represents a challenge for both inland and coastal desalination plants. Zero-liquid discharge (ZLD) can be accomplished by using additional stages of RO, which can recycle that brine water, but the key challenge is the high [...] Read more.
Brine discharge of reverse osmosis (RO) desalination plants represents a challenge for both inland and coastal desalination plants. Zero-liquid discharge (ZLD) can be accomplished by using additional stages of RO, which can recycle that brine water, but the key challenge is the high concentration of divalent salts. These divalent salts (especially calcium and magnesium salts) forms a scaling layer on the RO membrane surfaces and hence shorten the life-time of the membranes. In this study, the nanofiltration (NF) procedure was used to remove divalent ions from the brine discharge to minimize the load on additional stages of RO membranes. One of the most critical considerations influencing the selection of an effective NF is the water type, which is expected here by calculation of some hydrochemical parameters (major ions, hypothetical soluble salts (electrolyte), and saturation indices). NF experiments were undertaken on a lab-scale using a low-pressure hand-made system of 4–7 bar. Synthetic single salts solutions and two real brine water discharge (brackish (BWRO) and seawater (SWRO) desalination plants) were used as a feed solution for NF system. The chemical characteristics of the RO-feed, RO-brine, NF-permeate, and NF-reject in were investigated. Electrolyte concentrations and saturation indices were determined based on the concentration of the major ions and the NETPATH software package, respectively. Calculations reveal that the brine concentrate samples contained mostly MgSO4 and MgCl2 soluble salts. The results show that 79–89% of the total dissolved salts (TDS) and 96–98% of the total hardness (TH) were retained using the NF process. The salt rejection of the NF membrane follows the order of CaSO4, Na2SO4, MgSO4, MgCl2, and NaCl with a percent of 97.4, 97.3, 95.2, 93.4, and 79%, respectively. Full article
(This article belongs to the Special Issue Membrane Processes for the Metal-ion/Pollutants Detection on Water and Treatment of Industrial Wastewaters)
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