{"title":"Practical Model Experiment of Asbestos Waste Chemical Decomposition using Acid","authors":"T. Matsushima, Masaaki Yoshida","doi":"10.3985/JJSMCWM.28.101","DOIUrl":null,"url":null,"abstract":"Acid treatment was investigated for the practical chemical decomposition of asbestos-containing waste. Chemical decomposition of all six of the most hazardous asbestos was confirmed using actual waste speci-mens. Chrysotile was decomposed chemically using strong acids : HCl, H 2 SO 4 , and HNO 3 . Molding materials containing calcium components more than spraying materials required large amounts of H 2 SO 4 , but the calcium component did not influence treatment with HCl. Amphiboles of five kinds were chemically decomposed with mixed acids containing hydrofluoric acid. Hydrofluoric acid used as a mixed acid was more effec-tive than single acids for these reactions.","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"194 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Japan Society of Material Cycles and Waste Management","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3985/JJSMCWM.28.101","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Acid treatment was investigated for the practical chemical decomposition of asbestos-containing waste. Chemical decomposition of all six of the most hazardous asbestos was confirmed using actual waste speci-mens. Chrysotile was decomposed chemically using strong acids : HCl, H 2 SO 4 , and HNO 3 . Molding materials containing calcium components more than spraying materials required large amounts of H 2 SO 4 , but the calcium component did not influence treatment with HCl. Amphiboles of five kinds were chemically decomposed with mixed acids containing hydrofluoric acid. Hydrofluoric acid used as a mixed acid was more effec-tive than single acids for these reactions.
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