{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,5]],"date-time":"2022-04-05T11:03:01Z","timestamp":1649156581740},"reference-count":28,"publisher":"IWA Publishing","issue":"4","content-domain":{"domain":["iwaponline.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2015,8,1]]},"abstract":"<jats:p>A certain amount of cyanide is present in wastewater of various industrial processes, such as wet extraction of gold, coal processing, electroplating and other industries. In this work, an experimental study regarding transport of cyanide through a dispersion supported liquid membrane was performed. A model was established to describe the reaction and transport of CN(I) in the supported liquid membrane and the mass transfer kinetics equations were deduced. Through mass transfer kinetic equation it was derived that, when the carrier concentration was under certain conditions, there was a linear relationship between the reciprocal of the permeability coefficient of CN(I) (1\/Pc) and n-th power of the concentration of H+ (cnH+), and the parameters \u0394a(\u03b4a\/da) and \u0394o(\u03b40\/d0) could be obtained from the slope and intercept of the straight line. Then the diffusion coefficient do and the diffusion layer thickness \u03b4o of the phase interface between the feed phase and membrane phase could be calculated. Factors affecting migration of CN(I) were analyzed, and the stable removal rate of CN(I) was more than 90% with carrier concentration (%TOA) of 2%, feed phase pH of 4, initial CN(I) concentration of 30 mg\/L, stirring time of 1 hour, volume ratio of membrane solution to NaOH solution of 2:1, strip phase concentration of 2 mol\/L. The results showed that the overall mass transfer rate increased first and then decreased with an increase of TOA concentration, organic-to-strip volume ratio, and strip concentration. Furthermore, the transport percentage of CN(I) was increased, the stability of membrane was enhanced, and the lifetime of the membrane was extended.<\/jats:p>","DOI":"10.2166\/wst.2015.225","type":"journal-article","created":{"date-parts":[[2015,8,6]],"date-time":"2015-08-06T12:59:13Z","timestamp":1438865953000},"page":"643-650","update-policy":"http:\/\/dx.doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":3,"title":["Study of cyanide wastewater treatment by dispersion supported liquid membrane using trioctylamine and kerosene as liquid membrane"],"prefix":"10.2166","volume":"72","author":[{"given":"Guo Ping","family":"Li","sequence":"first","affiliation":[{"name":"Xi'an University of Architecture and Technology, Xi'an, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan Qin","family":"Xue","sequence":"first","affiliation":[{"name":"Xi'an University of Architecture and Technology, Xi'an, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li Hua","family":"Yu","sequence":"first","affiliation":[{"name":"Xi'an University of Architecture and Technology, Xi'an, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ni Na","family":"Liu","sequence":"first","affiliation":[{"name":"Xi'an University of Architecture and Technology, Xi'an, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"945","published-online":{"date-parts":[[2015,5,23]]},"reference":[{"key":"2020032802245858000_WST-EM1523R1C1","first-page":"47","article-title":"Determination of ketamine, norketamine and dehydronorketamine in urine by hollow-fiber liquid-phase microextraction using an essential oil as supported liquid membrane","volume":"243","author":"Andr\u00e9","year":"2014","journal-title":"J. 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