Journal of environmental science and health. Part A, Environmental science and engineering & toxic and hazardous substance control最新文献

筛选

英文中文

Numerical simulation of iodine speciation in relation to water disinfection aboard manned spacecraft I. Equilibria. 载人飞船上与水消毒有关的碘形态的数值模拟1 .平衡。

Journal of environmental science and health. Part A, Environmental science and engineering & toxic and hazardous substance control Pub Date : 1996-09-01 DOI: 10.1080/10934529609376468

J. Atwater, R. L. Sauer, J. R. Schultz

{"title":"Numerical simulation of iodine speciation in relation to water disinfection aboard manned spacecraft I. Equilibria.","authors":"J. Atwater, R. L. Sauer, J. R. Schultz","doi":"10.1080/10934529609376468","DOIUrl":"https://doi.org/10.1080/10934529609376468","url":null,"abstract":"Elemental iodine (I2) is currently used as the drinking water disinfectant aboard the Shuttle Orbiter and will also be incorporated into the water recovery and distribution system for the International Space Station Alpha. Controlled release of I2 is achieved using the Microbial Check Valve (MCV), a flow-through device containing an iodinated polymer which imparts a bacteriostatic residual concentration of approximately 2mg/L to the aqueous stream. During regeneration of MCV canisters, I2 concentrations of approximately 300 mg/L are used. Dissolved iodine undergoes a series of hydrolytic disproportionation and related reactions which result in the formation of an array of inorganic species including: I-, I3-, HOI, OI-, IO3-, HIO3, I2OH-, I2O(-2), and H2OI+. Numerical estimation of the steady-state distribution of inorganic iodine containing species in pure water at 25 degrees C has been achieved by simultaneous solution of the multiple equilibrium expressions as a function of pH. The results are reported herein.","PeriodicalId":81655,"journal":{"name":"Journal of environmental science and health. Part A, Environmental science and engineering & toxic and hazardous substance control","volume":"62 1","pages":"1965-79"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74586767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 21