DC Field | Value | Language |
---|---|---|
dc.contributor.author | ul Hassan, Muhmood | ko |
dc.contributor.author | Iqbal, Sajid | ko |
dc.contributor.author | Yun, Jong-Il | ko |
dc.contributor.author | Ryu, Ho Jin | ko |
dc.date.accessioned | 2019-07-22T08:30:04Z | - |
dc.date.available | 2019-07-22T08:30:04Z | - |
dc.date.created | 2019-05-29 | - |
dc.date.issued | 2019-07 | - |
dc.identifier.citation | JOURNAL OF HAZARDOUS MATERIALS, v.374, pp.228 - 237 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | http://hdl.handle.net/10203/263717 | - |
dc.description.abstract | An efficient method for the consolidation of cobalt (Co(II)) adsorbed calcium hydroxyapatite was investigated to develop a simplified route for decontamination of the coolant system of nuclear power plants and direct immobilization of as-spent adsorbent. Calcium hydroxyapatite nano-powder synthesized by a wet precipitation method was used as an adsorbent and 94% Co(II) surrogate removal from simulated water was measured. The as-spent adsorbent was sintered at 200 degrees C, a temperature significantly lower than conventional sintering temperatures (900-1300 degrees C) for hydroxyapatite, under a uniaxial pressure of 500 MPa for 10 min. The relative density after the cold sintering was > 97% and sintered samples displayed good compressive strength (175 MPa). The normalized leaching rate of the Co(II) was measured as per ASTM-C1285 standard and found to be 2.5 x 10(-5) g/m(2)/day. ANSI/ANS-16.1 test procedure was used to analyze the leachability of the sintered matrices and the measured leaching index value was 6.5. Thus, the use of pure calcium hydroxyapatite nano-powder as adsorbent and its cold sintering offers a mean by which radioactive waste form can be processed in an environment friendly manner. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Immobilization of radioactive corrosion products by cold sintering of pure hydroxyapatite | - |
dc.type | Article | - |
dc.identifier.wosid | 000472694500027 | - |
dc.identifier.scopusid | 2-s2.0-85064336349 | - |
dc.type.rims | ART | - |
dc.citation.volume | 374 | - |
dc.citation.beginningpage | 228 | - |
dc.citation.endingpage | 237 | - |
dc.citation.publicationname | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.identifier.doi | 10.1016/j.jhazmat.2019.04.038 | - |
dc.contributor.localauthor | Yun, Jong-Il | - |
dc.contributor.localauthor | Ryu, Ho Jin | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Cold sintering | - |
dc.subject.keywordAuthor | Waste immobilization | - |
dc.subject.keywordAuthor | Nano-ceramic | - |
dc.subject.keywordAuthor | Apatite | - |
dc.subject.keywordAuthor | Radioactive ionic-corrosion-products | - |
dc.subject.keywordPlus | CALCIUM-PHOSPHATE | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTIONS | - |
dc.subject.keywordPlus | HEAVY-METALS | - |
dc.subject.keywordPlus | NUCLEAR-REACTORS | - |
dc.subject.keywordPlus | STEEL SURFACES | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | SORPTION | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | TEMPERATURE | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.