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Separations
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Separation Techniques in Waste Water Treatment
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Separation Techniques in Waste Water Treatment

A special issue of Separations (ISSN 2297-8739).

Deadline for manuscript submissions: closed (31 October 2017) | Viewed by 37026

Special Issue Editors

Prof. Dr. Giovanni De Feo

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Guest Editor
Department of Industrial Engineering (DIIN), University of Salerno, 84084 Fisciano, SA, Italy
Interests: circular economy; environmental communication; life-cycle assessment; recycling; waste management; water and wastewater in ancient civilizations; water supply
Special Issues, Collections and Topics in MDPI journals
Prof. Sabino De Gisi

E-Mail Website
Guest Editor
Department of Industrial Engineering, Section of Chemical Engineering, University of Salerno, Via Giovanni Paolo II n. 132, 84084 Fisciano, SA, Italy
Interests: environmental engineering; waste treatment; life-cycle assessment; materials from waste; sludge treatment; recycling; sustainability
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Michele Notarnicola

E-Mail Website
Guest Editor
Department of Civil, Environmental, Land, Building Engineering and Chemistry (DICATECh), Polytechnic University of Bari, Via E. Orabona n. 4, 70125 Bari, Italy
Interests: air monitoring; health and environmental risk analysis; innovative materials for environmental applications; remediation of contaminated sites; waste management; wastewater reuse
Special Issues, Collections and Topics in MDPI journals
Dr. Danilo Spasiano

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Guest Editor
Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, via E. Orabona, 4, 70125 Bari, Italy
Interests: nanomaterials; wastewater treatment; adsorption; solid waste management; soil remediation; photodegradation; degradation; wastewater reuse
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Our goal is to plan a Special Issue on wastewater separation treatments, to be published in Separations. Many wastewater unitary treatments are aimed to separate contaminants from the main flow, and to concentrate them in a place where they can be easily recovered. That is the case in a classical sedimentation process, as an example, but many other innovative separation techniques could replace conventional treatments that are actually adopted in wastewater treatment plants. For this purpose, we encourage the submission of papers describing innovative, sustainable, and ecofriendly separation processes that are aimed at wastewater treatment. The use of a renewable energy source, the adoption of cheap and non-hazardous material, and the possibility of transforming removed contaminates into reusable end-products, are well accepted.

Prof. Giovanni De Feo
Dr. Sabino De Gisi
Prof. Michele Notarnicola
Dr. Danilo Spasiano
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. 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

  • Clariflocculation

  • Chemical-physical processes

  • Distillation

  • Domestic wastewater

  • Filtration

  • Industrial wastewater

  • Membrane technologies

  • Municipal wastewater

  • Nutrient recovery

  • Photocatalytical processes

  • Reuse

  • Sedimentation

  • Sludge

  • Treatment technologies

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (4 papers)

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Research

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2261 KiB  
Article
Experimental Application of an Advanced Separation Process for NOM Removal from Surface Drinking Water Supply
by Arianna Callegari, Joanna Boguniewicz-Zablocka and Andrea G. Capodaglio
Separations 2017, 4(4), 32; https://doi.org/10.3390/separations4040032 - 31 Oct 2017
Cited by 19 | Viewed by 5298
Abstract
Natural organic matter (NOM) in drinking water supplies significantly impacts on water supply quality and treatment, due to observed reactivity with many dissolved and particulate species. Several technologies are used nowadays to remove NOM from the water supply. The evolution of water-related directives, [...] Read more.
Natural organic matter (NOM) in drinking water supplies significantly impacts on water supply quality and treatment, due to observed reactivity with many dissolved and particulate species. Several technologies are used nowadays to remove NOM from the water supply. The evolution of water-related directives, and progressively more restrictive standards for drinking water, however, call for the investigation of advanced, more efficient, and cost-effective water treatment processes. This paper contains a brief overview on the state-of-the-art methods for NOM removal from supply waters, and describes the experimental application of an advanced technology, tested and validated at the pilot scale on the water supply source of a town in Poland. The process allowed significant removal of natural organic matter (about 50% as Dissolved Organic Carbon) and turbidity (from 50% to 90%), however, these results requested significant additions of powdered activated carbon. The key to success of this type of process is a correct setup with the identification of optimal types and dosages of reagents. Based on the results of the tests conducted it is foreseeable that this technology could be used onsite, not only for removal of NOM, but also of other hard-to-tackle pollutants potentially contained in the freshwater supply and not presently considered. Full article
(This article belongs to the Special Issue Separation Techniques in Waste Water Treatment)
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1401 KiB  
Article
An Alternative Use of Olive Pomace as a Wide-Ranging Bioremediation Strategy to Adsorb and Recover Disperse Orange and Disperse Red Industrial Dyes from Wastewater
by Vito Rizzi, Francesco D’Agostino, Jennifer Gubitosa, Paola Fini, Andrea Petrella, Angela Agostiano, Paola Semeraro and Pinalysa Cosma
Separations 2017, 4(4), 29; https://doi.org/10.3390/separations4040029 - 25 Sep 2017
Cited by 32 | Viewed by 5096
Abstract
In this paper, industrial dyes, Disperse Red and Disperse Orange, were studied as model pollutants to show the excellent performance of olive pomace (OP) in sequestering and recovering these dangerous dyes from wastewater. The nature of interactions involved between dyes and OP were [...] Read more.
In this paper, industrial dyes, Disperse Red and Disperse Orange, were studied as model pollutants to show the excellent performance of olive pomace (OP) in sequestering and recovering these dangerous dyes from wastewater. The nature of interactions involved between dyes and OP were inferred by changing several parameters: contact time, pomace dosage, pH and temperature values. Visible spectroscopy was mainly used to obtain the percentage of the removed dyes, while SEM (scanning electron microscopy), FTIR-ATR (Fourier transform infra-red spectroscopy in total attenuated reflectance), TG (thermo gravimetric) and XPS (X-ray photoelectron spectroscopy) analyses were used to carefully investigate the systems. The recovery of dyes was also obtained using glacial acetic acid, the auxiliary solvent used during the dyeing processes, enabling the recycling of both of the adsorbent material and dyes presenting a green and a wide-ranging strategic approach. Full article
(This article belongs to the Special Issue Separation Techniques in Waste Water Treatment)
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855 KiB  
Article
Porous Alumosilicate Aggregate as Lead Ion Sorbent in Wastewater Treatments
by Andrea Petrella, Pinalysa Cosma, Vito Rizzi and Nicoletta De Vietro
Separations 2017, 4(3), 25; https://doi.org/10.3390/separations4030025 - 3 Aug 2017
Cited by 11 | Viewed by 3895
Abstract
Porous alumosilicate aggregate, namely perlite, was used as an alternative material in wastewater treatments for the selective removal of ionic pollutants such as lead which is present in industrial wastewaters and toxic at relatively low concentrations. Metal retention was investigated by single metals [...] Read more.
Porous alumosilicate aggregate, namely perlite, was used as an alternative material in wastewater treatments for the selective removal of ionic pollutants such as lead which is present in industrial wastewaters and toxic at relatively low concentrations. Metal retention was investigated by single metals and multispecies equilibrium isotherms (batch system) and by carrying out dynamic (column) experiments. Lead ions were supposedly preferentially retained by ion exchange at the negatively charged silicate functional groups present on the perlite material, and to a minor extent by weak electrostatic (Van der Waals) interactions at non-specific functionalities. In the case of the batch system, the Freundlich isotherm gave a good correlation of the experimental data and lead maximum retention (qmax) in single ion solution was 4.28 mg/gperlite, and in multimetal solution was 1.50 mg/gperlite. In the case of the column system, overall capacity was 3.7 mg/gperlite in single ion solution, and in multimetal solution was 3.0 mg/gperlite. In multimetal solutions, lead ions showed the best interaction at the perlite functional groups because of the lowest free energies of hydration and hydrated radius. After sorption, perlite beads were used as lightweight aggregates for cement mortars after evaluation of the potential release of lead ions from the conglomerates. Full article
(This article belongs to the Special Issue Separation Techniques in Waste Water Treatment)
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Review

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12 pages, 731 KiB  
Review
Ion Chromatography Applications in Wastewater Analysis
by Rajmund Michalski
Separations 2018, 5(1), 16; https://doi.org/10.3390/separations5010016 - 26 Feb 2018
Cited by 54 | Viewed by 19475
Abstract
Wastewater analysis is an important area in analytical and environmental chemistry. It can be performed with both the classic wet methods and instrumental techniques. The development of new methods, and modification of the existing ones, constitute a major task for researchers. Ion chromatography [...] Read more.
Wastewater analysis is an important area in analytical and environmental chemistry. It can be performed with both the classic wet methods and instrumental techniques. The development of new methods, and modification of the existing ones, constitute a major task for researchers. Ion chromatography plays a predominant role in ion determinations with the instrumental methods. It offers several advantages over the conventional methods, such as simultaneous determinations of alkali and alkaline earth cations and ammonia. Ammonium ions cannot be determined by spectroscopic methods. Ion chromatography has been accepted world-wide as a reference method for analyzing anions and cations in water and wastewater due to the fact that it enables the replacement of several individual wet chemistry methods for common ions with one instrumental technique. The following article describes the principles of ion chromatography, such as stationary phases, eluents, detectors, and sample preparation methods. Moreover, the applications of ion chromatography in wastewater analyses and international standards are presented. Full article
(This article belongs to the Special Issue Separation Techniques in Waste Water Treatment)
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