{"title":"纳米级零价铁颗粒和沸石还原水中硝酸盐的研究","authors":"Xu Chen, Tielong Li","doi":"10.1109/ICBBE.2009.5163290","DOIUrl":null,"url":null,"abstract":"In this study, nitrate reduction using laboratory synthesized nanoscale zero-valent iron (NZVI) was discussed. On the other side, denitrification of nitrate with Fe 0 nanoparticles combined with zeolite was also investigated. The effects of iron-to-nitrate ratio and the affiliation of zeolite were studied systemically. The results show that nitrate with the concentration of 80 mg/L was mostly removed within 60 minutes, and the endproducts mainly are ammonia with Fe 0 but little ammonia with Fe 0 and zeolite. The role of nanoscale iron in the nitrate reduction should be take part in two major processes: (a) directly participate in the redox reaction; and (b) adsorption of nitrate. And the role of zeolite in nitrate reduction was only the absorption ammonia.","PeriodicalId":6430,"journal":{"name":"2009 3rd International Conference on Bioinformatics and Biomedical Engineering","volume":"18 1","pages":"1-3"},"PeriodicalIF":0.0000,"publicationDate":"2009-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Reduction of Nitrate in Water by Nanoscale Zero-Valent Iron Particles and Zeolite\",\"authors\":\"Xu Chen, Tielong Li\",\"doi\":\"10.1109/ICBBE.2009.5163290\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this study, nitrate reduction using laboratory synthesized nanoscale zero-valent iron (NZVI) was discussed. On the other side, denitrification of nitrate with Fe 0 nanoparticles combined with zeolite was also investigated. The effects of iron-to-nitrate ratio and the affiliation of zeolite were studied systemically. The results show that nitrate with the concentration of 80 mg/L was mostly removed within 60 minutes, and the endproducts mainly are ammonia with Fe 0 but little ammonia with Fe 0 and zeolite. The role of nanoscale iron in the nitrate reduction should be take part in two major processes: (a) directly participate in the redox reaction; and (b) adsorption of nitrate. And the role of zeolite in nitrate reduction was only the absorption ammonia.\",\"PeriodicalId\":6430,\"journal\":{\"name\":\"2009 3rd International Conference on Bioinformatics and Biomedical Engineering\",\"volume\":\"18 1\",\"pages\":\"1-3\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-06-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 3rd International Conference on Bioinformatics and Biomedical Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICBBE.2009.5163290\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 3rd International Conference on Bioinformatics and Biomedical Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICBBE.2009.5163290","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Reduction of Nitrate in Water by Nanoscale Zero-Valent Iron Particles and Zeolite
In this study, nitrate reduction using laboratory synthesized nanoscale zero-valent iron (NZVI) was discussed. On the other side, denitrification of nitrate with Fe 0 nanoparticles combined with zeolite was also investigated. The effects of iron-to-nitrate ratio and the affiliation of zeolite were studied systemically. The results show that nitrate with the concentration of 80 mg/L was mostly removed within 60 minutes, and the endproducts mainly are ammonia with Fe 0 but little ammonia with Fe 0 and zeolite. The role of nanoscale iron in the nitrate reduction should be take part in two major processes: (a) directly participate in the redox reaction; and (b) adsorption of nitrate. And the role of zeolite in nitrate reduction was only the absorption ammonia.
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