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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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Design and Preparation of Environmental Functional Materials for Pollutant Removal

edited by Yujun Zhou and Jianfei Li

submission deadline 31 Dec 2026 | 1 articles | Viewed by 3845 | Submission Open

Keywords: wastewater treatment; membrane separation; electrochemical technology; adsorption; resource recovery; electrodes and reactor design; wastewater treatment

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

Current Status and Prospects of Environmentally Friendly Sludge Dewatering, Solidification and Stabilization Technology

edited by

Boran Wu

, Binqi Rao and

Houfeng Wang

submission deadline 31 Dec 2026 | 1 articles | Viewed by 1716 | Submission Open

Keywords: sewage sludge; hazardous waste; dewatering; solidification; stabilization

(This special issue belongs to the Section Separation Engineering)

Biological Removal of Emerging Contaminants: Toxicological Effects and Process Mechanisms

edited by Yongfu Li and Litao Zhang

submission deadline 31 Dec 2026 | 1 articles | Viewed by 1181 | Submission Open

Keywords: emerging contaminants; microplastics; nanomaterial; pharmaceuticals and personal care products (PPCPs); bio-toxicity; bio-removal technologies and mechanisms

Recent Developments in Chemical Analysis of Bioactive Constituents of Plants and Plant Extracts

edited by

Constantinos Tsiafoulis

submission deadline 31 Dec 2026 | Viewed by 559 | Submission Open

Keywords: plant extract; bioactive constituents; food chemistry; method development; magnetic resonance spectroscopy; mass spectrometry; natural products

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

Innovative Strategies for Efficient Heavy Metal Removal in Water

edited by

Chengbin Liu

and Huiling Liu

submission deadline 31 Dec 2026 | Viewed by 517 | Submission Open

Keywords: heavy metal removal; next-generation adsorbents; membrane technologies; hybrid separation processes; resource recovery; AI-driven process

(This special issue belongs to the Section Environmental Separations)

Advanced Separation Technology for Nutrient Removal and Recovery

edited by

Lei Li

and Hui Xu

submission deadline 31 Dec 2026 | Viewed by 262 | Submission Open

Keywords: nutrient recovery; wastewater treatment; membrane separation; struvite crystallization; adsorption; ion exchange; electrochemical methods; solid waste; life cycle assessment; circular economy

(This special issue belongs to the Section Environmental Separations)

Application of Functional Materials in Air Filtration

edited by

Enze Tian

, Zhaoxia Sun and

Junzhou He

submission deadline 31 Dec 2026 | Viewed by 227 | Submission Open

Keywords: functional materials; air filtration; two-dimensional materials; metal– organic frameworks; adsorption; catalysis; particulate matter; volatile organic compounds; semi-volatile organic compounds; bioaerosols

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

Emerging New Technologies in Fundamental and Industrial Crystallization

edited by Lina Zhou and

Shichao Du

submission deadline 20 Jan 2027 | Viewed by 73 | Submission Open

Keywords: industrial crystallization; pharmaceutical crystallization; crystal engineering; polymorphism; crystal morphology; cocrystal; chemical thermodynamics; process analytical technology; artificial intelligence; crystallization process control

(This special issue belongs to the Section Separation Engineering)

Application of Chromatographic Technology in Natural Medicine Research

edited by He Ni

submission deadline 30 Jan 2027 | 1 articles | Viewed by 3495 | Submission Open

Keywords: natural medicine; chromatographic technology; bioactive compounds; separation; identification

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

Adsorption/Degradation for Environmental Pollutants

edited by Xiaoying Guo and Jie Zhang

submission deadline 30 Jan 2027 | 1 articles | Viewed by 1485 | Submission Open

Keywords: pollutant separation; sorption mechanisms; chemical and biological degradation; environmental remediation; environmental pollution control

(This special issue belongs to the Section Environmental Separations)

Recent Advances in Adsorption and Degradation Technologies of Per- and Polyfluoroalkyl Substances (PFAS)

edited by

Chinemerem Ruth Ohoro

submission deadline 30 Jan 2027 | Viewed by 1124 | Submission Open

Keywords: PFAS; adsorption; degradation; sorption; filtration; sonolysis; reverse osmosis; ion exchange; thermal desorption; phytoremediation; remediation technologies

(This special issue belongs to the Section Environmental Separations)

Flotation Separation of Minerals

edited by Changtao Wang, Qilin Zhai, Xian Xie and

Runqing Liu

submission deadline 31 Jan 2027 | Viewed by 92 | Submission Open

Keywords: flotation separation; sulfide minerals; oxide minerals; recovery of associated metals; flotation reagents; mineral processing; process mineralogy

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

Biomass-Based Materials for Environmental Purification

edited by

Chenghong Ao

submission deadline 31 Jan 2027 | Viewed by 44 | Submission Open

Keywords: biomass; water purification; membrane separation; catalytic degradation; adsorption

(This special issue belongs to the Section Environmental Separations)

Research on Advanced Oxidation Water Treatment Technology Based on Electrochemical/Chemical Technology in Emerging Pollutants Removal

edited by

Kaikai Zhang

, Shaogang Hu and Chao Li

submission deadline 10 Feb 2027 | Viewed by 289 | Submission Open

Keywords: advanced oxidation processes; emerging pollutants; wastewater treatment; pollutant degradation; electrochemistry; groundwater remediation; water purification; sustainable water treatment

(This special issue belongs to the Section Separation Engineering)

Adsorption/Degradation Methods for Water and Wastewater Treatment

edited by Milica Petrović,

Miloš Kostić

Slobodan Najdanović

Nena Velinov

and

Miljana Radović Vučić

submission deadline 20 Feb 2027 | 5 articles | Viewed by 10382 | Submission Open

Keywords: wastewater treatment; adsorption; electrodegradation; photodegradation; plasma degradation; (bio)sorbents; photocatalysts; plasma catalysts; pollutant removal

(This special issue belongs to the Section Purification Technology)

Novel Separation Methods for the Analysis of Active and Toxic Components in Food: Second Edition

edited by

Lorena González-Gómez

and

Sonia Morante Zarcero

submission deadline 20 Feb 2027 | 1 articles | Viewed by 2094 | 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)

Advances in Technologies Used for Mineral Separation

edited by Qiang Zhao and

Baoyu Cui

submission deadline 20 Feb 2027 | 3 articles | Viewed by 1364 | 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)

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 404 | 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)

New Approaches to Phosphorus Pollutant Control and Phosphorus Recovery

edited by Xuejiao Tang

submission deadline 28 Feb 2027 | 1 articles | Viewed by 1645 | Submission Open

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

(This special issue belongs to the Section Environmental Separations)

Mineral Flotation Separation and Resource Utilization

edited by

Yafeng Fu

Ximei Luo

and

Haoran Sun

submission deadline 10 Mar 2027 | Viewed by 136 | 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)

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