Leaching behavior and ESEM characterization of water-sensitive mudstone in Southwestern Taiwan

Hung Ta Chen, Tzong Tzeng Lin, Juu En Chang

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

This investigation attempts to understand the critical soluble salts in natural mudstone and the leaching, microstructural, and microchemical characteristics in soaked mudstone using scanning electron microscopy (SEM)/energy-dispersive X-ray analysis (EDAX), X-ray fluorescence spectrometry (XRF), X-ray diffractometry (XRD), conductivity measurement, ion chromatography (IC), and environmental scanning electron microscopy (ESEM)/EDAX techniques. Natural mudstone probably includes soluble salts such as Na2SO4, NaCl, NaCO3, and CaCO3. The dissolution of Na2SO4 controls water-sensitive mudstone very susceptible to slaking and dispersion. ESEM micrographs clearly show evidence of mudstone-slaking during soaking since the visible pores are filled with small aggregative masses. A calcium-bearing precipitate from the soaked mudstone is speculated to be attributable to the decomposition of the hydrated product of the fresh mudstone.

原文English
頁(從 - 到)909-922
頁數14
期刊Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
38
發行號5
DOIs
出版狀態Published - 2003

All Science Journal Classification (ASJC) codes

  • 環境工程

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