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Article

Influence of Salinity on the Removal of Ni and Zn by Phosphate-Intercalated Nano Montmorillonite (PINM)

School of Architecture, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Korea
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Author to whom correspondence should be addressed.
Minerals 2020, 10(11), 980; https://doi.org/10.3390/min10110980
Received: 21 September 2020 / Revised: 30 October 2020 / Accepted: 31 October 2020 / Published: 2 November 2020
(This article belongs to the Special Issue Environmental Applications of Chemically Modified Clay Minerals)
The salinity influence on the adsorptions of Ni and Zn onto phosphate-intercalated nano montmorillonite (PINM) were investigated. Single adsorption isotherm models fitted the single adsorption data well. The adsorption capacity of Ni was higher than that of Zn onto PINM at different salinities. The single adsorption parameters from Langmuir model (QmL and bL) were compared with the binary adsorption (QmL* and bL*). The QmL* of Zn was lower than that of Ni. The simultaneous presence of Ni and Zn decreased the adsorption capacities. The single and binary adsorptions onto PINM were affected by the salinity. The competitive Langmuir model (CLM), P-factor, Murali and Aylmore (M−A) models, and ideal adsorbed solution theory (IAST) were satisfactory in predicting the binary adsorption data; the CLM showed the best fitting results. Our results showed that the PINM can be used as an active Ni and Zn adsorbent for a permeable reactive barrier (PRB) in the remediation of saline groundwater. View Full-Text
Keywords: adsorption; binary; nickel; salinity; zinc adsorption; binary; nickel; salinity; zinc
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MDPI and ACS Style

Choi, J.; Septian, A.; Shin, W.S. Influence of Salinity on the Removal of Ni and Zn by Phosphate-Intercalated Nano Montmorillonite (PINM). Minerals 2020, 10, 980. https://doi.org/10.3390/min10110980

AMA Style

Choi J, Septian A, Shin WS. Influence of Salinity on the Removal of Ni and Zn by Phosphate-Intercalated Nano Montmorillonite (PINM). Minerals. 2020; 10(11):980. https://doi.org/10.3390/min10110980

Chicago/Turabian Style

Choi, Jiyeon, Ardie Septian, and Won S. Shin 2020. "Influence of Salinity on the Removal of Ni and Zn by Phosphate-Intercalated Nano Montmorillonite (PINM)" Minerals 10, no. 11: 980. https://doi.org/10.3390/min10110980

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