{"title":"水泥凝固系统中钨渣的特性及其性能研究","authors":"Zimei Liu, Xueliang Ge, Feng Ge, Cairong Lu, Zhengnan Zhang","doi":"10.1007/s10163-024-02026-1","DOIUrl":null,"url":null,"abstract":"<div><p>The basic characteristics of tungsten slag produced in the production of ammonium para tungstate (APT) and its ground tungsten slag powder were investigated. The mechanical strength characteristics and development of cement-solidified tungsten slag cementation system with raw tungsten slag mixed artificial sand as fine aggregate were discussed by cement solidification/stabilization method. The harmful metal content and leaching concentration of tungsten slag and its cement-solidified cementation system were compared. The test results show that the particle-size distribution of ground tungsten slag presents a more uniform characteristic. When the content of the ground tungsten slag is more than 30% as admixture, the strength ratio does not meet the requirements of the specification. In addition, when the raw tungsten slag be used partly as fine aggregate, the mechanical strength of cement-solidified tungsten slag cementation system is fine. Moreover, the cement solidification/stabilization technology can effectively reduce the leaching concentration of arsenic in tungsten slag. The mechanism of solidification/stabilization of arsenic by Portland cement includes adsorption and precipitate to form calcified arsenic insoluble.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 5","pages":"3059 - 3072"},"PeriodicalIF":2.7000,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02026-1.pdf","citationCount":"0","resultStr":"{\"title\":\"Study on the characteristics of tungsten slag and its properties in the cement solidification system\",\"authors\":\"Zimei Liu, Xueliang Ge, Feng Ge, Cairong Lu, Zhengnan Zhang\",\"doi\":\"10.1007/s10163-024-02026-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The basic characteristics of tungsten slag produced in the production of ammonium para tungstate (APT) and its ground tungsten slag powder were investigated. The mechanical strength characteristics and development of cement-solidified tungsten slag cementation system with raw tungsten slag mixed artificial sand as fine aggregate were discussed by cement solidification/stabilization method. The harmful metal content and leaching concentration of tungsten slag and its cement-solidified cementation system were compared. The test results show that the particle-size distribution of ground tungsten slag presents a more uniform characteristic. When the content of the ground tungsten slag is more than 30% as admixture, the strength ratio does not meet the requirements of the specification. In addition, when the raw tungsten slag be used partly as fine aggregate, the mechanical strength of cement-solidified tungsten slag cementation system is fine. Moreover, the cement solidification/stabilization technology can effectively reduce the leaching concentration of arsenic in tungsten slag. The mechanism of solidification/stabilization of arsenic by Portland cement includes adsorption and precipitate to form calcified arsenic insoluble.</p><h3>Graphical abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":643,\"journal\":{\"name\":\"Journal of Material Cycles and Waste Management\",\"volume\":\"26 5\",\"pages\":\"3059 - 3072\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-07-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s10163-024-02026-1.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Material Cycles and Waste Management\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10163-024-02026-1\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Material Cycles and Waste Management","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s10163-024-02026-1","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Study on the characteristics of tungsten slag and its properties in the cement solidification system
The basic characteristics of tungsten slag produced in the production of ammonium para tungstate (APT) and its ground tungsten slag powder were investigated. The mechanical strength characteristics and development of cement-solidified tungsten slag cementation system with raw tungsten slag mixed artificial sand as fine aggregate were discussed by cement solidification/stabilization method. The harmful metal content and leaching concentration of tungsten slag and its cement-solidified cementation system were compared. The test results show that the particle-size distribution of ground tungsten slag presents a more uniform characteristic. When the content of the ground tungsten slag is more than 30% as admixture, the strength ratio does not meet the requirements of the specification. In addition, when the raw tungsten slag be used partly as fine aggregate, the mechanical strength of cement-solidified tungsten slag cementation system is fine. Moreover, the cement solidification/stabilization technology can effectively reduce the leaching concentration of arsenic in tungsten slag. The mechanism of solidification/stabilization of arsenic by Portland cement includes adsorption and precipitate to form calcified arsenic insoluble.
期刊介绍：
The Journal of Material Cycles and Waste Management has a twofold focus: research in technical, political, and environmental problems of material cycles and waste management; and information that contributes to the development of an interdisciplinary science of material cycles and waste management. Its aim is to develop solutions and prescriptions for material cycles.
The journal publishes original articles, reviews, and invited papers from a wide range of disciplines related to material cycles and waste management.
The journal is published in cooperation with the Japan Society of Material Cycles and Waste Management (JSMCWM) and the Korea Society of Waste Management (KSWM).
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