TY - JOUR
T1 - Long-term stability of KEtX/Cu(OH)2 matrix in landfill leachates
AU - Chang, Juu En
AU - Lin, Tzong Tzeng
AU - Ko, Ming Sheng
AU - Chen, Zhi Jian
AU - Chang, Yi Kuo
N1 - Funding Information:
This study was supported by the National Science Council
PY - 1999
Y1 - 1999
N2 - In this study, the long-term stability of KEtX/Cu(OH)2 matrix under early-period and late-period landfill leachates was evaluated using semi-dynamic leaching test (SDLT), X-ray diffractometer (XRD) and fourier transform infrared (FTIR) techniques. The results of SDLT aAer 60-day periods of extraction indicated that the cumulative leaching of Cu was only 0.72% and 3.34% of the total Cu in the KEtX/Cu(OH)2 matrix under early-period and late-period landfill leachates, respectively. The investigation of crystallinity and functional groups between the leached KEtX/Cu(OH)2 matrices after 1-day and 60-day periods of extraction using XRD and FTIR indicated that the KEtX/Cu(OH)2 matrices were perfectly unaffected by the extraction using early-period and late-period landfill leachates during the 60-day leach time. Consequently, the KEtX/Cu(OH)2 matrix had a stabilizing behavior extracted in landfill leachates.
AB - In this study, the long-term stability of KEtX/Cu(OH)2 matrix under early-period and late-period landfill leachates was evaluated using semi-dynamic leaching test (SDLT), X-ray diffractometer (XRD) and fourier transform infrared (FTIR) techniques. The results of SDLT aAer 60-day periods of extraction indicated that the cumulative leaching of Cu was only 0.72% and 3.34% of the total Cu in the KEtX/Cu(OH)2 matrix under early-period and late-period landfill leachates, respectively. The investigation of crystallinity and functional groups between the leached KEtX/Cu(OH)2 matrices after 1-day and 60-day periods of extraction using XRD and FTIR indicated that the KEtX/Cu(OH)2 matrices were perfectly unaffected by the extraction using early-period and late-period landfill leachates during the 60-day leach time. Consequently, the KEtX/Cu(OH)2 matrix had a stabilizing behavior extracted in landfill leachates.
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U2 - 10.1016/S0273-1223(99)00263-2
DO - 10.1016/S0273-1223(99)00263-2
M3 - Conference article
AN - SCOPUS:0032809287
SN - 0273-1223
VL - 39
SP - 131
EP - 134
JO - Water Science and Technology
JF - Water Science and Technology
IS - 10-11
T2 - Proceedings of the 1997 International Specialised Conference on Chemical Process Industries and Envrionmental Management
Y2 - 8 September 1997 through 10 September 1997
ER -