{"title":"叠置多膜电化学系统在高盐度废水中实现盐回收和有机物降解","authors":"Zheng Peng, Yingpeng Gu, Yue Sun","doi":"10.1016/j.cej.2025.163408","DOIUrl":null,"url":null,"abstract":"<div><div>Current approaches such as evaporation, combustion and advanced oxidation processes for managing high salinity wastewaters not only impose a significant burden on enterprises but also fail to align with the principles of the prevailing low carbon economy. Herein, we developed the novel stacked multi-membrane electrochemical system (SMES) that efficiently increased the value of high salinity wastewater through simultaneously recovering salts and degrading organic pollutants. The integration of multiple membranes in SMES not only enhanced salt recovery but also alleviated organics leakage, while the addition of granular activated carbon beads further augmented the degradation efficiency of organic pollutants. Several high salinity wastewaters were efficiently processed, confirming the scalability of SMES technology. More than 85 % of inorganic salts in these wastewaters converted to acids and bases, and 79.63 %−99.60 % of organic pollutants were degraded by reactive oxygen species (ROS) generated <em>in situ</em>, thereby degrading to small molecules. Simultaneously, the organic pollutants could also serve as scavengers for ROS to provide membrane protection. Notably, the SMES exhibited superior energy efficiency compared with the conventional bipolar membrane electrodialysis. Our study provides a valuable technological solution for managing high salinity wastewaters, facilitating a transition from conventional, energy-intensive methods to a more sustainable, recycling-focused approach.</div></div>","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"515 ","pages":"Article 163408"},"PeriodicalIF":13.2000,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Stacked multi-membrane electrochemical system achieving simultaneous salt recovery and organics degradation in high salinity wastewaters\",\"authors\":\"Zheng Peng, Yingpeng Gu, Yue Sun\",\"doi\":\"10.1016/j.cej.2025.163408\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Current approaches such as evaporation, combustion and advanced oxidation processes for managing high salinity wastewaters not only impose a significant burden on enterprises but also fail to align with the principles of the prevailing low carbon economy. Herein, we developed the novel stacked multi-membrane electrochemical system (SMES) that efficiently increased the value of high salinity wastewater through simultaneously recovering salts and degrading organic pollutants. The integration of multiple membranes in SMES not only enhanced salt recovery but also alleviated organics leakage, while the addition of granular activated carbon beads further augmented the degradation efficiency of organic pollutants. Several high salinity wastewaters were efficiently processed, confirming the scalability of SMES technology. More than 85 % of inorganic salts in these wastewaters converted to acids and bases, and 79.63 %−99.60 % of organic pollutants were degraded by reactive oxygen species (ROS) generated <em>in situ</em>, thereby degrading to small molecules. Simultaneously, the organic pollutants could also serve as scavengers for ROS to provide membrane protection. Notably, the SMES exhibited superior energy efficiency compared with the conventional bipolar membrane electrodialysis. Our study provides a valuable technological solution for managing high salinity wastewaters, facilitating a transition from conventional, energy-intensive methods to a more sustainable, recycling-focused approach.</div></div>\",\"PeriodicalId\":270,\"journal\":{\"name\":\"Chemical Engineering Journal\",\"volume\":\"515 \",\"pages\":\"Article 163408\"},\"PeriodicalIF\":13.2000,\"publicationDate\":\"2025-05-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical Engineering Journal\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1385894725042421\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1385894725042421","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Stacked multi-membrane electrochemical system achieving simultaneous salt recovery and organics degradation in high salinity wastewaters
Current approaches such as evaporation, combustion and advanced oxidation processes for managing high salinity wastewaters not only impose a significant burden on enterprises but also fail to align with the principles of the prevailing low carbon economy. Herein, we developed the novel stacked multi-membrane electrochemical system (SMES) that efficiently increased the value of high salinity wastewater through simultaneously recovering salts and degrading organic pollutants. The integration of multiple membranes in SMES not only enhanced salt recovery but also alleviated organics leakage, while the addition of granular activated carbon beads further augmented the degradation efficiency of organic pollutants. Several high salinity wastewaters were efficiently processed, confirming the scalability of SMES technology. More than 85 % of inorganic salts in these wastewaters converted to acids and bases, and 79.63 %−99.60 % of organic pollutants were degraded by reactive oxygen species (ROS) generated in situ, thereby degrading to small molecules. Simultaneously, the organic pollutants could also serve as scavengers for ROS to provide membrane protection. Notably, the SMES exhibited superior energy efficiency compared with the conventional bipolar membrane electrodialysis. Our study provides a valuable technological solution for managing high salinity wastewaters, facilitating a transition from conventional, energy-intensive methods to a more sustainable, recycling-focused approach.
期刊介绍:
The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.