Mohamed, A., Abdel Moamen, O., Metwally, S., El-Kamash, A., Ashour, I., Al-Geundi, M. (2021). MODIFIED ATTAPULGITE APPLICATION IN REMOVAL OFSR2+, CO2+ AND NI2+ IONS FROM MULTICOMPONENT SOLUTION. Journal of Advanced Engineering Trends, 40(2), 1-9.
Amira Abo-Zid Mohamed; Ola Abdel Moamen; Sayed Sayed Metwally; Ahmed El-Kamash; Ibrahim Ashour; Mohammed Al-Geundi. "MODIFIED ATTAPULGITE APPLICATION IN REMOVAL OFSR2+, CO2+ AND NI2+ IONS FROM MULTICOMPONENT SOLUTION". Journal of Advanced Engineering Trends, 40, 2, 2021, 1-9.
Mohamed, A., Abdel Moamen, O., Metwally, S., El-Kamash, A., Ashour, I., Al-Geundi, M. (2021). 'MODIFIED ATTAPULGITE APPLICATION IN REMOVAL OFSR2+, CO2+ AND NI2+ IONS FROM MULTICOMPONENT SOLUTION', Journal of Advanced Engineering Trends, 40(2), pp. 1-9.
Mohamed, A., Abdel Moamen, O., Metwally, S., El-Kamash, A., Ashour, I., Al-Geundi, M. MODIFIED ATTAPULGITE APPLICATION IN REMOVAL OFSR2+, CO2+ AND NI2+ IONS FROM MULTICOMPONENT SOLUTION. Journal of Advanced Engineering Trends, 2021; 40(2): 1-9.
MODIFIED ATTAPULGITE APPLICATION IN REMOVAL OFSR2+, CO2+ AND NI2+ IONS FROM MULTICOMPONENT SOLUTION
2Hot Labs. Center, Atomic Energy Authority, Egypt.
3Radioactive Waste Management Department, Hot Labs. Center, Atomic Energy Authority, Egypt.
4Department of Chemical Engineering, Faculty of Engineering, Minia University, Egypt.
Abstract
Natural clays have been recommended as a green alternative sorbent, with low cost, good mechanical properties, and good tolerance to a harsh chemical environment. However, on a large scale, it is difficult to separate the clay particles from the solution; the centrifugation process involves a high speed, and the filtration procedure is prone to filter blockages. Therefore, a suitable method for the separation of clay particles is necessary to be found. To solve this problem, the clay should be modified. In this paper, attapulgite (ATP) as a natural clay was modified using double-layer hydroxide to produce LDH-ATP sorbent. Different sorption isotherm models of the modified attapulgite for the removal of Sr2+, Co2+, and Ni2+ ions from a multicomponent solution were evaluated, for instance, the extended Langmuir and Freundlich isotherm models. The results demonstrated that the extended Langmuir is more suitable than Freundlich isotherm (with R2 values greater than 0.95). The maximum capacity was computed and found to be 2.6, 1.64, and 1.60 mmol/g for Ni2+, Co2+, and Sr2+, respectively. Finally, the LDH-ATP can be recommended for the removal of Sr2+, Co2+, and Ni2 ions from multicomponent media.
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