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Separations publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue polices and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Removal and Recovery of Nitrogen and Phosphorus from Wastewater

edited by Qian Ping

submission deadline 30 Jul 2024 | 3 articles | Viewed by 4103 | Submission Open

Keywords: nutrient removal; resource recovery; biological wastewater treatment; chemical precipitation; electrochemistry; physical treatment; phosphorus release and recovery

(This special issue belongs to the Section Environmental Separations)

Extraction and Characterization of Bioactive Compounds from Plant and Natural Sources

edited by

José Manuel Romero-Márquez

and

Alfonso Varela-López

submission deadline 30 Jul 2024 | Viewed by 376 | Submission Open

Keywords: extraction; characterization; bioactive compounds; natural sources; nutraceutical; plant materia

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Analysis, Isolation and Biological Activities of Polyphenols from Terrestrial and Marine Sources

edited by

José Cheel

submission deadline 31 Jul 2024 | 4 articles | Viewed by 6584 | Submission Open

Keywords: antioxidants; bioactivity; conventional extraction; LC/MS; HPLC; flavonoids; structural elucidation; unconventional extraction; separation; polyphenols; liquid-liquid chromatography (CCC/CPC)

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Application of Deep Eutectic Solvents in Green Separation Chemistry

edited by Bušić Valentina and

Maja Molnar

submission deadline 10 Aug 2024 | 2 articles | Viewed by 4018 | Submission Open

Keywords: green separation process; DESs in extraction processes; chromatographic separation techniques; organic synthesis in DESs; DESs in industrial scales; molecular dynamics studies

(This special issue belongs to the Section Purification Technology)

Peptide Synthesis, Separation and Purification

edited by

Othman Al Musaimi

submission deadline 10 Aug 2024 | 2 articles | Viewed by 2281 | Submission Open

Keywords: hydrophobicity; retention time prediction; solubility; retention behavior; peptide separation; purification; denaturation

(This special issue belongs to the Section Chromatographic Separations)

Separation Technology for Metals Recovery

edited by Katarzyna Leszczyńska-Sejda and Andrzej Chmielarz

submission deadline 10 Aug 2024 | 1 articles | Viewed by 325 | Submission Open

Keywords: hydrometallurgy; analytical technology; solvent extraction; ion exchange; membrane techniques; electrochemistry; pyrometallurgy

(This special issue belongs to the Section Purification Technology)

Novel Methods for the Analysis of Active and Toxic Components in Food

edited by

Lorena González-Gómez

and

Sonia Morante Zarcero

submission deadline 10 Aug 2024 | Viewed by 172 | Submission Open

Keywords: food analysis; toxic compounds; bioactive compounds; micro-extractive methods; chromatography; food safety and quality; mass spectrometry; sample preparation; validated analytical methods; green methodologies

(This special issue belongs to the Section Analysis of Food and Beverages)

Adsorption and Remediation of Emerging Pollutants from Water and Soil

edited by Xiaoying Guo

submission deadline 20 Aug 2024 | 3 articles | Viewed by 2155 | Submission Open

Keywords: novel adsorbents; removal of emerging pollutants; emerging pollutant detection; remediation of water and soil pollution; environmental risks of emerging pollutants

(This special issue belongs to the Section Environmental Separations)

Bioelectrochemical Treatment and Purification of Wastewater

edited by Nuan Yang and Fei Guo

submission deadline 20 Aug 2024 | 1 articles | Viewed by 747 | Submission Open

Keywords: bioelectrochemical systems; bioelectrochemical treatment; wastewater treatment and purification; electrodes and reactor design; electricity generation; nitrogen removal; electroactive bacteria; conductive materials; biofilm formation

(This special issue belongs to the Section Purification Technology)

Photocatalytic Materials for Pollutant Removal by Degradation

edited by Antonietta Mancuso

submission deadline 20 Aug 2024 | Viewed by 206 | Submission Open

Keywords: photocatalysis; water treatment; air treatment; emerging pollutants; semiconductor materials; visible light; photocatalytic degradation

(This special issue belongs to the Section Environmental Separations)

Green Extraction Techniques of Bioactive Compounds from Natural Sources

edited by Liliana Mihalcea and

Mona Elena Popa

submission deadline 20 Aug 2024 | Viewed by 157 | Submission Open

Keywords: natural sources; bioactive compounds; supercritical extraction; subcritical water extraction; chromatography; spectrometry; ultrasound-assisted extraction; microwave-assisted extraction; pressurized liquid extraction; enzyme-assisted extraction; bioeconomy

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Advanced Research on Extraction and Analysis of Plant Extracts

edited by

Lina Raudonė

submission deadline 31 Aug 2024 | 4 articles | Viewed by 5750 | Submission Open

Keywords: phytochemistry; extraction; profiles; analytical markers; chromatography; plant extracts

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Advanced Nitrogen Removal Process in Adsorption and Removal of Pollutants

edited by Xinyue Zhao and Li Lixin

submission deadline 31 Aug 2024 | 3 articles | Viewed by 4577 | Submission Open

Keywords: pollutant removal; advanced nitrogen removal; biological-based denitrification; microbial community; physicochemical technologies; pollutant monitoring

(This special issue belongs to the Section Environmental Separations)

Adsorption and Solar-Powered Decomposition for Removing Pollutants

edited by Xingming Ning

submission deadline 31 Aug 2024 | 1 articles | Viewed by 1259 | Submission Open

Keywords: organic pollutants; adsorption decomposition; solar energy; electrochemical separations; separation and decomposition technology; ecological environment purification

(This special issue belongs to the Section Environmental Separations)

Determination and Analysis of Volatiles by Solid-Phase Microextraction–Gas Chromatography

edited by

Marisabel Mecca

and

Maurizio D’Auria

submission deadline 31 Aug 2024 | Viewed by 164 | Submission Open

Keywords: extractives; VOCs; GC-MS; chemical characterization; SPME; on-fiber derivatization; on-site sampling

(This special issue belongs to the Section Chromatographic Separations)

Pollutant Removal and Nutrient/Energy Recovery from Wastewater

edited by Hongwei Sun

submission deadline 31 Aug 2024 | Viewed by 87 | Submission Open

Keywords: wastewater; contaminants; purification; nutrients; recovery; energy; oxidation; adsorption; membrane separation; catalysis

(This special issue belongs to the Section Environmental Separations)

Research Progress in Separation and Extraction of Ferrous and Non-ferrous Metals

edited by Wei Zhang, Juhua Zhang, Xuefeng She and Yun Li

submission deadline 10 Sep 2024 | 3 articles | Viewed by 4630 | Submission Open

Keywords: separation; extraction; ferrous metal; non-ferrous metal; physical chemistry

(This special issue belongs to the Section Purification Technology)

Research Progress for Isolation of Plant Active Compounds

edited by

Huaxiang Li

and Yi Li

submission deadline 10 Sep 2024 | 4 articles | Viewed by 4239 | Submission Open

Keywords: plants; active compounds; extraction; isolation; identification; molecular structure; chromatography; mass spectrometry; nuclear magnetic resonance analysis; biological activity

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Isolation and Identification of Biologically Active Natural Compounds

edited by Iulia Varzaru and

Arabela Elena Untea

submission deadline 10 Sep 2024 | 1 articles | Viewed by 546 | Submission Open

Keywords: plants; by-products; bioactive compounds; isolation methods; chromatography; antioxidant activity; antimicrobial activity; bioavailable compounds; nutraceuticals

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Emerging Analytical Methods for Detection and Separation of Environmental Pollutants and Food Contaminants

edited by

Marios G. Kostakis

, Niki Maragou and

Natasa Kalogiouri

submission deadline 10 Sep 2024 | Viewed by 195 | Submission Open

Keywords: persisent organic pollutants; emerging contaminants; high-resolution mass spectrometry; low-resolution mass spectrometry; tandem mass spectrometry; food analysis; environmental analysis; liquid chromatography; gas chromatography; sample preparation techniques

(This special issue belongs to the Section Chromatographic Separations)

New Extraction Systems for the Separation of Natural Compounds

edited by Ying Zhang

submission deadline 10 Sep 2024 | Viewed by 79 | Submission Open

Keywords: antioxidants; functional foods; bioactive components; separation engineering; biological activities

(This special issue belongs to the Section Separation Engineering)

Chromatography for the Separation and Detection of Metabolites

edited by

Emanuela Salviati

and Manuela Giovanna Basilicata

submission deadline 20 Sep 2024 | 1 articles | Viewed by 777 | Submission Open

Keywords: chromatography (LC; GC); mass spectrometry; hyphenated techniques; LC-MS; GC-MS; metabolomics; lipidomics; natural products; chemical finger-printing; pharmaceutical applications

(This special issue belongs to the Section Chromatographic Separations)

Impact of Liquid Chromatography in Pharmaceutical Research and Beyond

edited by W John Lough

submission deadline 20 Sep 2024 | Viewed by 182 | Submission Open

Keywords: LC biochemical analysis; LC-MS; LC drug bioanalysis; LC chiral separations; api analysis by LC; LC drug product analysis; LC of biologicals

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Membranes Used in Water Purification

edited by

Kayo Santana Barros

and

Valentín Pérez-Herranz

submission deadline 20 Sep 2024 | Viewed by 108 | Submission Open

Keywords: microfiltration; ultrafiltration; nanofiltration; reverse osmosis; forward osmosis; pressure-retarded osmosis; membrane distillation; electrodialysis; fouling; water purification

(This special issue belongs to the Section Purification Technology)

New and Modified Polymers for Detection and Removal of Pollutants from Water and Air

edited by Aleksandra Nastasović and

Bojana Marković

submission deadline 20 Sep 2024 | Viewed by 95 | Submission Open

Keywords: polymers and composites; molecularly imprinted polymers; adsorption mechanism; thermodynamic and kinetic analysis of adsorption; quantum modeling and simulation; radionuclides; organic and inorganic pollutants; CO2 capture; gas separation

(This special issue belongs to the Section Materials in Separation Science)

Green Separation and Purification Technology

edited by

Shun Yao

submission deadline 20 Sep 2024 | Viewed by 89 | Submission Open

(This special issue belongs to the Section Separation Engineering)

Research on New Technology and Equipment of Multiphase Flow Separation

edited by Chencan Du and Yubin Wang

submission deadline 20 Sep 2024 | Viewed by 76 | Submission Open

Keywords: multiphase flow; separation technology; equipment design; process intensification; fluid dynamics; computational modeling; mass transfer; sustainable processes; environmental impact

(This special issue belongs to the Section Separation Engineering)

Separation Technology for Solid Waste Treatment and Recycling

edited by Ying Huang and Kazuyuki Oshita

submission deadline 30 Sep 2024 | 1 articles | Viewed by 594 | Submission Open

Keywords: solid waste; recycling; rare metals; crude oil; separation techniques

(This special issue belongs to the Section Separation Engineering)

Application of Membrane Materials for Gas/Chemical Separation

edited by Zhihao Si

submission deadline 30 Sep 2024 | Viewed by 142 | Submission Open

Keywords: membrane fabrication; membrane modification; membrane characterization; membrane application; membrane process

(This special issue belongs to the Section Separation Engineering)

Application of Advanced Oxidation Technology in Wastewater Purification

edited by

Daniela Šojić Merkulov

Nina L. Finčur

and

Predrag Putnik

submission deadline 30 Sep 2024 | Viewed by 111 | Submission Open

Keywords: environmental protection; advanced oxidation technology; photocatalysis; sonophotocatalysis; sonolysis; nanomaterials; sustainable synthesis; sources of irradiation; organic pollutants

(This special issue belongs to the Section Purification Technology)

Chemical Product Separation and Energy Conversion Research

edited by

Weisong Li

submission deadline 30 Sep 2024 | Viewed by 87 | Submission Open

Keywords: microwave catalysis; reforming; H2 production; energy conversion; selective heating; pyrolysis; carbon nanomaterials

(This special issue belongs to the Section Analysis of Energies)

Removal of Organic Pollutants from Aqueous Systems

edited by Li Yan

submission deadline 10 Oct 2024 | Viewed by 74 | Submission Open

Keywords: organic pollutants; PFAS; adsorption; degradation; mechanisms; modeling; aquatic chemistry; interfacial processes; advanced materials; water treatment

(This special issue belongs to the Section Environmental Separations)

Applications of Chromatography in Pharmaceutical Analysis and Forensic Toxicology

edited by

Sara Casati

and

Marica Orioli

submission deadline 10 Oct 2024 | Viewed by 63 | Submission Open

Keywords: liquid chromatography; drug analysis; forensic analysis; toxicological analysis; sample preparation; method validation; method developement; biological matrices; pharmaceutical preparation

(This special issue belongs to the Section Forensics/Toxins)

Application of Biosorbents in Environmental Purification

edited by

Ventura Castillo Ramos

and

Manuel Sánchez-Polo

submission deadline 15 Oct 2024 | 1 articles | Viewed by 1075 | Submission Open

Keywords: biosorbent; biomass-derived material; water treatment; air purification; gas separation; soil remediation; pollutant removal; sorption

(This special issue belongs to the Section Environmental Separations)

Application of Liquid Chromatography in Pharmaceutical and Toxicological Analysis

edited by

Maria Nieddu

and

Elena Baralla

submission deadline 20 Oct 2024 | 4 articles | Viewed by 7277 | Submission Open

Keywords: liquid chromatography; drug analysis; forensic analysis; toxicological analysis; residues analysis; sample preparation; method validation; biological matrices; pharmaceutical preparation

(This special issue belongs to the Section Chromatographic Separations)

Application of Biochar in Degradation and Purification

edited by Bo Zhang

submission deadline 20 Oct 2024 | Viewed by 186 | Submission Open

Keywords: novel bioremediation techniques about both organic pollutants and heavy metals in soils; biochar-mediated bacterial biofilms; evolution of soil microbes under different stress in soils; interactions between the virus and bacteria in soils; enhancement of soil fertility

(This special issue belongs to the Section Environmental Separations)

Separation and Purification of Functional Components of Foods and Herbs

edited by Huafeng Zhang

submission deadline 20 Oct 2024 | Viewed by 146 | Submission Open

Keywords: separation and purification; functional components; bioactive substances; green extraction; quantitative analysis; health benefits; biological activities

(This special issue belongs to the Section Analysis of Food and Beverages)

Chemical and Contaminant Residue Analysis via Chromatography

edited by

Evangelia Tzanetou

and

Konstantinos M. Kasiotis

submission deadline 20 Oct 2024 | Viewed by 73 | Submission Open

Keywords: liquid chromatography; gas chromatography; contaminants; residues; volatile organic compounds; mass spectrometry; food; environment; biological fluids; regulatory compliance; risk assessment

(This special issue belongs to the Section Chromatographic Separations)

Research Progress of Gas–Solid Fluidized Dry Separation

edited by Chenyang Zhou

submission deadline 30 Oct 2024 | 1 articles | Viewed by 459 | Submission Open

Keywords: gas-solid fluidized bed; bubble behavior; gas– solid fluidization simulation; dry coal separation; two-phase theory; bed density stability

(This special issue belongs to the Section Separation Engineering)

Separation and Extraction Technology in Mineral Processing

edited by Guixia Fan and Jianhua Kang

submission deadline 31 Oct 2024 | 2 articles | Viewed by 2907 | Submission Open

Keywords: fine-grained minerals; surface and interface process; adsorption kinetics; flotation mechanism; molecular dynamics simulation; solution chemistry; selective separation; reagent development

(This special issue belongs to the Section Separation Engineering)

Extraction, Purification and Application of Bioactive Compounds

edited by

Naoufal El Hachlafi

Hanae Naceiri Mrabti

and

Amine Elbouzidi

submission deadline 31 Oct 2024 | 1 articles | Viewed by 1201 | Submission Open

Keywords: extraction; chemical characterization; pharmacological properties; bioactive compounds; GC-MS analysis; biotechnological application

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Separation Process for Sustainable Utilization of Bioresources

edited by

Hideo Maruyama

submission deadline 31 Oct 2024 | Viewed by 184 | Submission Open

Keywords: biomass; bioresource utilization; sustainability; separation; separation engineering; chemical engineering

(This special issue belongs to the Section Separation Engineering)

Development of Materials for Separation and Analysis Applications

edited by

Israel S. Ibarra

submission deadline 31 Oct 2024 | Viewed by 98 | Submission Open

Keywords: material chemistry; separation science; polymers; analytical techniques; sample treatment; food and environmental samples

(This special issue belongs to the Section Materials in Separation Science)

Chromatography/Mass Spectrometry for the Determination of Food Authenticity and Food Analysis

edited by

Andreas Breidbach

submission deadline 31 Oct 2024 | Viewed by 73 | Submission Open

Keywords: liquid chromatography; gas chromatography; mass spectrometry; adulteration; food fraud; multi variate analysis; authentication; high resolution MS

(This special issue belongs to the Section Analysis of Food and Beverages)

Analysis and Bioanalysis of Pharmaceuticals: Sample Preparation and Chromatography

edited by

Anne Marie Ciobanu

Daniela Baconi

George Traian Alexandru Burcea-Dragomiroiu

and

Carmen Lidia Chitescu

submission deadline 10 Nov 2024 | 4 articles | Viewed by 4785 | Submission Open

Keywords: chromatography; drug analysis; sample preparation; method validation; biological matrices; extraction; liquid chromatography; gas chromatography; pharmaceuticals; sample preparation; high-performance thin-layer chromatography

(This special issue belongs to the Section Chromatographic Separations)

Application of Microbial Metallurgy Process in Metal Extraction

edited by Yuandong Liu and

Ruiyong Zhang

submission deadline 10 Nov 2024 | 1 articles | Viewed by 1634 | Submission Open

Keywords: minerals bioleaching; microbe– mineral interface; solution reactions; microorganisms; community structure and function; genes and proteins; multiple bio-omics; bioleaching mechanism; biometallurgy techniques; new applications development

(This special issue belongs to the Section Purification Technology)

Extraction and Analysis of Chemical Composition from Natural Products and Metabolites

edited by

Aurea Bernardino-Nicanor

and

Leopoldo González Cruz

submission deadline 10 Nov 2024 | Viewed by 215 | Submission Open

Keywords: HPLC separation; metabolites separation; non-conventional separation techniques; gas chromatography; protein separation; pigment separation; separation and characterization of carbohydrates

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Separation Technology for Metal Extraction and Removal

edited by Minhua Su, Changzhong Liao and Jinfeng Tang

submission deadline 10 Nov 2024 | Viewed by 166 | Submission Open

Keywords: metal extraction; toxic metal/nuclides removal; waste-to-resources; water purification; process development; material development and application

(This special issue belongs to the Section Purification Technology)

Application of Nanotechnology and Nanomaterials in Removal of Heavy Metals, Dyes, or Emerging Pollutants

edited by Jaouad Bensalah and

Naoufal El Hachlafi

submission deadline 10 Nov 2024 | Viewed by 88 | Submission Open

Keywords: extraction; adsorption; chemical characterization; nanomaterials or nanotechnology; heavy metals; dyes; pharmaceutical; microplastics; personal care products; bioactive compounds; pollutants

(This special issue belongs to the Section Materials in Separation Science)

Extraction and Analysis of Chemical Compositions of Natural Products and Plants

edited by

Xiumei Li

submission deadline 20 Nov 2024 | 10 articles | Viewed by 13322 | Submission Open

Keywords: extraction; separation and purification; analysis; chemical composition; natural products

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

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