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http://dx.doi.org/10.9727/jmsk.2018.31.4.227

The Characterization of Pyrophyllite Based Ceramic Reactive Media for Permeable Reactive Barriers  

Cho, Kanghee (Research Institute of Agriculture and Life Sciences, Seoul National University)
Kim, Hyunsoo (Dept. of Energy and Resource Engineering, Chosun University)
Choi, Nag-Choul (Research Institute of Agriculture and Life Sciences, Seoul National University)
Park, Cheon-Young (Dept. of Energy and Resource Engineering, Chosun University)
Publication Information
Journal of the Mineralogical Society of Korea / v.31, no.4, 2018 , pp. 227-234 More about this Journal
Abstract
In this work, we have prepared the reactive media with the pyrophyllite based using ceramic extrusion process. The characteristics of pyrophyllite were analyzed using XRD, XRF, DSC-TGA and Zeta-potential analysis. The study of pyrophyllite based ceramic reactive media were conducted under various roasting temperature (500 to $1,300^{\circ}C$) conditions. With increasing the roasting temperature, strength was increased but BET surface area was decreased. Thermally treated pyrophyllite were analyzed by means of weight loss and structural changes as detected by using XRD, DSC-TGA and SEM analysis. Pyrophyllite primarily transforms to pyrophyllite dehydroxylate after roasting at $1,000^{\circ}C$. Pyrophyllite dehydroxylate transforms to mullite and cristobalite at $1,300^{\circ}C$. This study demonstrates that pyrophyllite could be used as a reactive media for ceramic support layers from Permeable Reactive Barriers.
Keywords
Pyrophyllite; mullite; ceramic; reactive media; roasting;
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Times Cited By KSCI : 3  (Citation Analysis)
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