{"refrec":{"BRefID":135307,"RR":"<b>Van Geldermalsen, L.A.; Duursma, E.K.</b> (1984). Temperature effects on sorption of Cd, Eu, Pu and Am onto estuarine and marine sediments, <b><i>in</i></b>: Cigna, A. <i>et al.</i> (Ed.) <i>EUR 9214 - International symposium of long-lived radionuclides in the marine environment. Radiation Protection Series,</i> : pp. 83-95","BEntID":129204,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Cigna, A. <i>et al.</i> <i>EUR 9214 - International symposium of long-lived radionuclides in the marine environment. Radiation Protection Series,</i> : pp. 83-95","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Van Geldermalsen, L.A.; Duursma, E.K.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Van Geldermalsen, L.A.; Duursma, E.K.","Englishabstract":"The effect of temperature (4° to 140° C) on sorption of Cd, Eu-152, Pu-239 and Am-243 onto Atlantic and estuarine sediments was studied using a batch equilibrium technique. The sorption coefficient (K<sub>d</sub>) of Cd showed an inverse dependency of temperature of the sediments, K<sub>d</sub>: 1400 at 4° and 90 ml.g<sup>-1</sup> at 90 °C for estuarine sediment. Equilibrium was reached within 2 days and coulombic interaction of Cd with the sediment surface of the calcium carbonate was apparently the main mechanism for cadmium adsorption. Temperature showed the same effects on sorption of Pu-239 to these sediments, indicating the same sorption mechanism. However, K<sub>d</sub>s were much greater: 10<sup>5</sup> to 10<sup>6</sup> ml.g<sup>-1</sup>. Raising the temperature had a small effect on the adsorption of Eu-152, K <sub>d</sub>: 6.8 10<sup>4</sup> at 4° and 4.5 10<sup>5</sup> ml.g<sup>-1</sup> at 80°C for Atlantic sediment, which would indicate that chemosorption is the main sorption mechanism here. Sorption equilibirum constants for Am were greater than 8 10<sup>8</sup> ml.g<sup>-1</sup> and no influence of temperature was found, perhaps due to imprecise instrumentation.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"Temperature effects on sorption of Cd, Eu, Pu and Am onto estuarine and marine sediments","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1984,"MonPub":null,"DateUpdate":"2016-02-16","DateCreate":"2009-05-12","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":135307,"PubliDate":1984,"Pagination":"83-95","XtraPublOfAnaID":null,"ISBN":null,"Volume":null,"Issue":null,"BRefMon":135305,"BRefMonRR":"<b>Cigna, A.; Myttenaere, C. 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