Sources, colloidal characteristics, and separation technologies for highly hazardous waste nanoemulsions

Yongjiao Xiong; Kaiming Peng; Ziqian Zhao; Diling Yang; Xiangfeng Huang; Hongbo Zeng

doi:10.1016/j.scitotenv.2024.172347

Sources, colloidal characteristics, and separation technologies for highly hazardous waste nanoemulsions

Sci Total Environ. 2024 Apr 11:930:172347. doi: 10.1016/j.scitotenv.2024.172347. Online ahead of print.

Authors

Yongjiao Xiong¹, Kaiming Peng², Ziqian Zhao³, Diling Yang³, Xiangfeng Huang⁴, Hongbo Zeng⁵

Affiliations

¹ State Key Laboratory of Pollution Control and Resource Reuse, Ministry of Education Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, No. 1239 Siping Road, Shanghai 200092, PR China.
² State Key Laboratory of Pollution Control and Resource Reuse, Ministry of Education Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, No. 1239 Siping Road, Shanghai 200092, PR China; Institute of Carbon Neutrality, Tongji University, No. 1239 Siping Road, Shanghai 200092, PR China.
³ Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada.
⁴ State Key Laboratory of Pollution Control and Resource Reuse, Ministry of Education Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, No. 1239 Siping Road, Shanghai 200092, PR China; Institute of Carbon Neutrality, Tongji University, No. 1239 Siping Road, Shanghai 200092, PR China. Electronic address: hxf@tongji.edu.cn.
⁵ Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada. Electronic address: hongbo.zeng@ualberta.ca.

PMID: 38614332
DOI: 10.1016/j.scitotenv.2024.172347

Abstract

Nanoemulsions play a crucial role in various industries. However, their application often results in hazardous waste, posing significant risks to human health and the environment. Effective management and separation of waste nanoemulsions requires special attention and effort. This review provides a comprehensive understanding of waste nanoemulsions, covering their sources, characteristics, and suitable treatment technologies, intending to mitigate their environmental impact. This study examines the evolution of nanoemulsions from beneficial products to hazardous wastes, provides an overview of the production processes, fate, and hazards of waste nanoemulsions, and highlights the critical characteristics that affect their stability. The latest advancements in separating waste nanoemulsions for recovering oil and reusable water resources are also presented, providing a comprehensive comparison and evaluation of the current treatment techniques. This review addresses the significant challenges in nanoemulsion treatment, provides insights into future research directions, and offers valuable implications for the development of more effective strategies to mitigate the hazards associated with waste nanoemulsions.

Keywords: Colloidal stability; Environment impact; Hazardous wastes; Nanoemulsions; Recovery techniques; Waste management.

Publication types

Review