Influence of salinity on the removal of Ni and Zn by phosphate-intercalated nano montmorillonite (PINM)

Jiyeon Choi; Ardie Septian; Won Sik Shin

doi:10.3390/min10110980

Influence of salinity on the removal of Ni and Zn by phosphate-intercalated nano montmorillonite (PINM)

Jiyeon Choi, Ardie Septian, Won Sik Shin

Kyungpook National University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

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 (Q and * mL * bL). The * Q of Zn was lower than that of Ni. mL 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.

Original language	English
Article number	980
Pages (from-to)	1-14
Number of pages	14
Journal	Minerals
Volume	10
Issue number	11
DOIs	https://doi.org/10.3390/min10110980
State	Published - Nov 2020

Keywords

Adsorption
Binary
Nickel
Salinity
Zinc

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title = "Influence of salinity on the removal of Ni and Zn by phosphate-intercalated nano montmorillonite (PINM)",

abstract = "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 (Q and * mL * bL). The * Q of Zn was lower than that of Ni. mL 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.",

keywords = "Adsorption, Binary, Nickel, Salinity, Zinc",

author = "Jiyeon Choi and Ardie Septian and Shin, {Won Sik}",

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year = "2020",

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doi = "10.3390/min10110980",

language = "English",

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AU - Choi, Jiyeon

AU - Septian, Ardie

AU - Shin, Won Sik

PY - 2020/11

Y1 - 2020/11

N2 - 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 (Q and * mL * bL). The * Q of Zn was lower than that of Ni. mL 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.

AB - 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 (Q and * mL * bL). The * Q of Zn was lower than that of Ni. mL 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.

KW - Adsorption

KW - Binary

KW - Nickel

KW - Salinity

KW - Zinc

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ER -

Influence of salinity on the removal of Ni and Zn by phosphate-intercalated nano montmorillonite (PINM)

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