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Special Issues

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 policies 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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Advances in Technologies Used for Mineral Separation

edited by Qiang Zhao and

Baoyu Cui

submission deadline 20 Feb 2027 | 3 articles | Viewed by 1862 | Submission Open

Keywords: mineral processing; separation theory; practical applications; mathematical model; numerical simulation; process intensification; structural design

(This special issue belongs to the Section Separation Engineering)

Advanced Separation Technology for Sludge Wastewater Treatment and Resource Utilization

edited by Bingdi Cao

submission deadline 20 Feb 2027 | 1 articles | Viewed by 1652 | Submission Open

Keywords: sludge; solid–liquid separation; dewatering agent; extracellular polymeric substances (EPSs); electro-dewatering; coagulants

(This special issue belongs to the Section Purification Technology)

Green Separation and Purification Technology: Second Edition

edited by

Shun Yao

submission deadline 20 Feb 2027 | Viewed by 446 | Submission Open

Keywords: greenness; separations; solvents; materials; assessments

(This special issue belongs to the Section Separation Engineering)

Discussion on Advanced Extraction Techniques for Active Components of Natural Products

edited by Anelise Christ-Ribeiro,

Pinto Luiz Antonio de Almeida

and

Débora Pez Jaeschke

submission deadline 20 Feb 2027 | Viewed by 440 | Submission Open

Keywords: advanced extraction techniques; natural products; bioactive compounds; green chemistry; valorization; biotechnological extraction; analytical characterization; sustainable processes; food applications; pharmaceutical applications

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

Application of Advanced Oxidation Processes (AOPs) in Wastewater Treatment

edited by Hongwei Sun

submission deadline 20 Feb 2027 | Viewed by 400 | Submission Open

Keywords: advanced oxidation processes; wastewater; catalysts; emerging pollutants; recalcitrant pollutants; cost evaluation; durability

(This special issue belongs to the Section Environmental Separations)

Separation Techniques in Environmental Analysis

edited by

Eliézer Quadro Oreste

and

Sergiane Souza Caldas

submission deadline 20 Feb 2027 | Viewed by 319 | Submission Open

Keywords: separation techniques; chromatography; electrophoresis; sample preparation; fractionation; green microextractions; emerging contaminants; green analytical chemistry; environmental monitoring; analytical validation

(This special issue belongs to the Section Environmental Separations)

New Approaches to Phosphorus Pollutant Control and Phosphorus Recovery

edited by Xuejiao Tang

submission deadline 28 Feb 2027 | 2 articles | Viewed by 1905 | Submission Open

Keywords: phosphorus resource recovery; purification; crystallization separation; catalytic decomposition; high value-added

(This special issue belongs to the Section Environmental Separations)

Solid Waste Recycling and Strategic Metal Extraction

edited by

Lihui Gao

Daoguang Teng

Shulei Li

and Chunlin He

submission deadline 10 Mar 2027 | 6 articles | Viewed by 14629 | Submission Open

Keywords: solid waste; biomass; adsorption material; wastewater treatment; strategic metal resources

(This special issue belongs to the Section Separation Engineering)

Numerical Modeling and Computation in Separation and Adsorption

edited by Hao Wu

submission deadline 10 Mar 2027 | 3 articles | Viewed by 2578 | Submission Open

Keywords: computational fluid dynamics (CFD); mass transfer separation; multiscale simulation; process optimization; multiphase flow; molecular simulation

(This special issue belongs to the Section Separation Engineering)

Molecularly Imprinting Polymers for Separation and Detection

edited by

Rogelio Flores-Ramírez

and

Karla Ximena Vargas-Berrones

submission deadline 10 Mar 2027 | 1 articles | Viewed by 1204 | Submission Open

Keywords: molecularly imprinting polymers; emerging pollutants; water quality; SDGs; sustainable development; green technologies; water bioremediation; environmental health

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

Advances in Membrane Technology for Separation

edited by Pengjia Dou

submission deadline 10 Mar 2027 | Viewed by 306 | Submission Open

Keywords: membrane separation; membrane technology; ion separation; molecular separation; electro-membrane processes; resource recovery; water purification; wastewater treatment; novel membrane materials; separation mechanism

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

Preparation and Application of Carbon-Based Materials in Pollutant Removal

edited by

Shangyi Li

submission deadline 10 Mar 2027 | Viewed by 234 | Submission Open

Keywords: carbon-based materials; water and wastewater treatment; adsorption technology; advanced catalytic oxidation; pollutants removal; large-scale deployment

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

Mineral Flotation Separation and Resource Utilization

edited by

Yafeng Fu

Ximei Luo

and

Haoran Sun

submission deadline 10 Mar 2027 | Viewed by 159 | Submission Open

Keywords: flotation; separation; leaching; intelligent decision-making systems; resource utilization; functional materials; metallurgical slag; solid waste

(This special issue belongs to the Section Separation Engineering)

Separation and Purification of Bioactive Natural Products from Complex Biological Matrices

edited by

Chunying Li

submission deadline 10 Mar 2027 | Viewed by 32 | Submission Open

Keywords: bioactive natural products; complex biological matrices; separation technologies; purification techniques; coupling technologies; chromatography; bioactivity; guided fractionation; prepared HPLC; countercurrent chromatography; green separation

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

Bioactive Extracts Recovery from Medicinal and Aromatic Plant Waste

edited by

Milena Nikolova

submission deadline 10 Mar 2027 | Viewed by 8 | Submission Open

Keywords: plant waste; by-products; eco-friendly extraction methods; green solvents; bioactive compounds and extracts; biological activity; circular economy; sustainable resource utilization

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

Research on Metal Resource Recycling and Efficient Extraction Technologies

edited by Qiongqiong He and Keji Wan

submission deadline 20 Mar 2027 | 1 articles | Viewed by 1347 | Submission Open

Keywords: metal recycling; sustainable metallurgy; circular economy; hydrometallurgy; electronic waste (e-waste); resource efficiency; life cycle assessment (LCA); AI-driven optimization

(This special issue belongs to the Section Separation Engineering)

Novel Functional Separation Materials for Water Treatment

edited by

Zhujian Huang

and

Xinjiang Hu

submission deadline 20 Mar 2027 | 1 articles | Viewed by 1024 | Submission Open

Keywords: advanced oxidation processes; nanomaterials for water treatment; membrane technology; electrochemical water treatment; sustainable water purification; contaminant removal; resource recovery; hybrid treatment systems; bio-based adsorbents; water–energy nexus

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

Recent Advances in Carbon Dioxide Capture, Utilization, and Storage Technology

edited by Pengfei Wang,

Ying Teng

Shuyang Liu

and Bingbing Chen

submission deadline 20 Mar 2027 | 1 articles | Viewed by 813 | Submission Open

Keywords: CO2 capture utilization and storage (CCUS); carbon neutrality; porous and functional materials; membrane and adsorption technologies; saline aquifer sequestration; multiphase flow and transport; source–sink matching; hydrate-based separation; geomechanics and reservoir monitoring

(This special issue belongs to the Section Separation Engineering)

Research on Separation Techniques for Metabolomics and Pharmacokinetics Analysis

edited by

Mamunur Rashid

submission deadline 20 Mar 2027 | Viewed by 444 | Submission Open

Keywords: metabolomics; pharmacokinetics; mass spectrometry; UPLC; supercritical fluid chromatography (SFC); separation technology; biomarker discovery; personalized medicine

(This special issue belongs to the Section Bioanalysis/Clinical Analysis)

Analytical Methods for Nitrosamines and NDSRIs in Pharmaceuticals

edited by

Yiannis Sarigiannis

and Georgios N. Rallis

submission deadline 20 Mar 2027 | Viewed by 91 | Submission Open

Keywords: nitrosamines; NDSRIs; LC-MS/MS; GC-MS/MS; HRMS; pharmaceutical analysis; impurity profiling; method validation; AQbD

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

Removal Methods for Emerging Contaminants in Wastewater

edited by

Banghai Liu

and Minda Yu

submission deadline 20 Mar 2027 | Viewed by 13 | Submission Open

Keywords: emerging contaminants; advanced oxidation processes (AOPs); wastewater treatment; soil and groundwater remediation; in situ chemical oxidation (ISCO); photocatalysis; adsorption

(This special issue belongs to the Section Environmental Separations)

Separation Technologies for Solid Waste Treatment and Recycling

edited by Ying Huang

submission deadline 31 Mar 2027 | Viewed by 6 | Submission Open

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

(This special issue belongs to the Section Separation Engineering)

Innovative Adsorption Materials and Extraction Technology for Food Sample Detection

edited by

Hangzhen Lan

and Peipei Qi

submission deadline 20 Apr 2027 | 2 articles | Viewed by 4836 | Submission Open

Keywords: food; sample preparation; selective extraction; chromatography; mass spectrometry; computational modeling; machine learning