Yuchen Sun, Jingyuan Fei, Shuwen Yan, Xiaofei Wang, Dong An and Xiuping Zhu*,
{"title":"利用水凝胶从废水中回收水资源","authors":"Yuchen Sun, Jingyuan Fei, Shuwen Yan, Xiaofei Wang, Dong An and Xiuping Zhu*, ","doi":"10.1021/acs.estlett.4c00075","DOIUrl":null,"url":null,"abstract":"<p >Hydrogels possess a strong water absorption capability and can release absorbed water in response to physical or chemical stimuli, making them promising materials for water recycling. To explore the concept of using hydrogels to recover water from wastewater, we synthesized and utilized poly(acrylic acid-<i>co</i>-acrylamide) (PAAM) hydrogels to extract water from solutions containing various organic pollutants and salt concentrations. The swelling ratio of PAAM hydrogels reached up to 510 g/g with a water recovery of around 44% and a water production rate of approximately 3200 L/kg/day. The removal rates of organic pollutants reached up to 89%, depending on the pollutant’s properties such as molecular weight, functional group, solubility, and charge. This confirms the potential of using hydrogels to recover water from various wastewaters, especially for those containing large molecular pollutants.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":null,"pages":null},"PeriodicalIF":8.9000,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Water Recovery from Wastewater by Hydrogels\",\"authors\":\"Yuchen Sun, Jingyuan Fei, Shuwen Yan, Xiaofei Wang, Dong An and Xiuping Zhu*, \",\"doi\":\"10.1021/acs.estlett.4c00075\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Hydrogels possess a strong water absorption capability and can release absorbed water in response to physical or chemical stimuli, making them promising materials for water recycling. To explore the concept of using hydrogels to recover water from wastewater, we synthesized and utilized poly(acrylic acid-<i>co</i>-acrylamide) (PAAM) hydrogels to extract water from solutions containing various organic pollutants and salt concentrations. The swelling ratio of PAAM hydrogels reached up to 510 g/g with a water recovery of around 44% and a water production rate of approximately 3200 L/kg/day. The removal rates of organic pollutants reached up to 89%, depending on the pollutant’s properties such as molecular weight, functional group, solubility, and charge. This confirms the potential of using hydrogels to recover water from various wastewaters, especially for those containing large molecular pollutants.</p>\",\"PeriodicalId\":37,\"journal\":{\"name\":\"Environmental Science & Technology Letters Environ.\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.9000,\"publicationDate\":\"2024-03-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Science & Technology Letters Environ.\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acs.estlett.4c00075\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Science & Technology Letters Environ.","FirstCategoryId":"1","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.estlett.4c00075","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Hydrogels possess a strong water absorption capability and can release absorbed water in response to physical or chemical stimuli, making them promising materials for water recycling. To explore the concept of using hydrogels to recover water from wastewater, we synthesized and utilized poly(acrylic acid-co-acrylamide) (PAAM) hydrogels to extract water from solutions containing various organic pollutants and salt concentrations. The swelling ratio of PAAM hydrogels reached up to 510 g/g with a water recovery of around 44% and a water production rate of approximately 3200 L/kg/day. The removal rates of organic pollutants reached up to 89%, depending on the pollutant’s properties such as molecular weight, functional group, solubility, and charge. This confirms the potential of using hydrogels to recover water from various wastewaters, especially for those containing large molecular pollutants.
期刊介绍:
Environmental Science & Technology Letters serves as an international forum for brief communications on experimental or theoretical results of exceptional timeliness in all aspects of environmental science, both pure and applied. Published as soon as accepted, these communications are summarized in monthly issues. Additionally, the journal features short reviews on emerging topics in environmental science and technology.