Analysis of phosphate removal from aqueous solutions by hydrocalumite

Jeong Woo Son, Jae Hyun Kim, Jin Kyu Kang, Song Bae Kim, Jeong Ann Park, Chang Gu Lee, Jae Woo Choi, Sang-Hyup Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this study, phosphate (P) removal from aqueous solutions by hydrocalumite was investigated using batch experiments and model analyses. The maximum phosphate removal capacity was determined to be 127.53 mg P/g under the given experimental conditions (hydrocalumite dose = 0.05 g/L, initial P concentration = 2–20 mg P/L, reaction time = 24 h). Model analyses showed that the Elovich model was most suitable for describing the kinetic data, whereas the Redlich–Peterson model provided the best fits to the equilibrium data. Furthermore, phosphate removal by hydrocalumite was not sensitive to pH changes between 4.0 and 11.0. A thermodynamic analysis indicated that phosphate removal by hydrocalumite increased with a rise in temperature from 15 to 45°C, suggesting that the removal process was spontaneous and endothermic (ΔH° = 32.05 kJ/mol, ΔS° = 112.86 J/K/mol, ΔG° = −0.47 to −3.86 kJ/mol). The phosphate removal capacity in stream water (5.40–17.25 mg P/g) was also lower than that in a synthetic P solution (6.86–27.51 mg P/g) under the given experimental conditions (initial P concentration = 2 mg P/L, hydrocalumite dose = 0.05–0.3 g/L, reaction time = 24 h). Such a result could possibly be ascribed to the presence of carbonate ions ((Formula presented.)) in the stream water, which could interfere with phosphate removal by hydrocalumite through the precipitation of calcium carbonate (CaCO3).

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalDesalination and Water Treatment
DOIs
Publication statusAccepted/In press - 2015 Nov 26

Fingerprint

Phosphates
aqueous solution
calcium carbonate
Calcium carbonate
thermodynamics
phosphate
analysis
phosphate removal
carbonate
kinetics
water
Water
Carbonates
ion
Thermodynamics
Kinetics
Ions
experiment
temperature
removal

Keywords

  • Hydrocalumite
  • Hydroxyapatite
  • Layered double hydroxide
  • Phosphate removal
  • Precipitation

ASJC Scopus subject areas

  • Pollution
  • Water Science and Technology
  • Ocean Engineering

Cite this

Son, J. W., Kim, J. H., Kang, J. K., Kim, S. B., Park, J. A., Lee, C. G., ... Lee, S-H. (Accepted/In press). Analysis of phosphate removal from aqueous solutions by hydrocalumite. Desalination and Water Treatment, 1-11. https://doi.org/10.1080/19443994.2015.1119759

Analysis of phosphate removal from aqueous solutions by hydrocalumite. / Son, Jeong Woo; Kim, Jae Hyun; Kang, Jin Kyu; Kim, Song Bae; Park, Jeong Ann; Lee, Chang Gu; Choi, Jae Woo; Lee, Sang-Hyup.

In: Desalination and Water Treatment, 26.11.2015, p. 1-11.

Research output: Contribution to journalArticle

Son, JW, Kim, JH, Kang, JK, Kim, SB, Park, JA, Lee, CG, Choi, JW & Lee, S-H 2015, 'Analysis of phosphate removal from aqueous solutions by hydrocalumite', Desalination and Water Treatment, pp. 1-11. https://doi.org/10.1080/19443994.2015.1119759
Son, Jeong Woo ; Kim, Jae Hyun ; Kang, Jin Kyu ; Kim, Song Bae ; Park, Jeong Ann ; Lee, Chang Gu ; Choi, Jae Woo ; Lee, Sang-Hyup. / Analysis of phosphate removal from aqueous solutions by hydrocalumite. In: Desalination and Water Treatment. 2015 ; pp. 1-11.
@article{3ad39ad91a3a4522a70ac068b0293aca,
title = "Analysis of phosphate removal from aqueous solutions by hydrocalumite",
abstract = "In this study, phosphate (P) removal from aqueous solutions by hydrocalumite was investigated using batch experiments and model analyses. The maximum phosphate removal capacity was determined to be 127.53 mg P/g under the given experimental conditions (hydrocalumite dose = 0.05 g/L, initial P concentration = 2–20 mg P/L, reaction time = 24 h). Model analyses showed that the Elovich model was most suitable for describing the kinetic data, whereas the Redlich–Peterson model provided the best fits to the equilibrium data. Furthermore, phosphate removal by hydrocalumite was not sensitive to pH changes between 4.0 and 11.0. A thermodynamic analysis indicated that phosphate removal by hydrocalumite increased with a rise in temperature from 15 to 45°C, suggesting that the removal process was spontaneous and endothermic (ΔH° = 32.05 kJ/mol, ΔS° = 112.86 J/K/mol, ΔG° = −0.47 to −3.86 kJ/mol). The phosphate removal capacity in stream water (5.40–17.25 mg P/g) was also lower than that in a synthetic P solution (6.86–27.51 mg P/g) under the given experimental conditions (initial P concentration = 2 mg P/L, hydrocalumite dose = 0.05–0.3 g/L, reaction time = 24 h). Such a result could possibly be ascribed to the presence of carbonate ions ((Formula presented.)) in the stream water, which could interfere with phosphate removal by hydrocalumite through the precipitation of calcium carbonate (CaCO3).",
keywords = "Hydrocalumite, Hydroxyapatite, Layered double hydroxide, Phosphate removal, Precipitation",
author = "Son, {Jeong Woo} and Kim, {Jae Hyun} and Kang, {Jin Kyu} and Kim, {Song Bae} and Park, {Jeong Ann} and Lee, {Chang Gu} and Choi, {Jae Woo} and Sang-Hyup Lee",
year = "2015",
month = "11",
day = "26",
doi = "10.1080/19443994.2015.1119759",
language = "English",
pages = "1--11",
journal = "Desalination and Water Treatment",
issn = "1944-3994",
publisher = "Taylor and Francis Ltd.",

}

TY - JOUR

T1 - Analysis of phosphate removal from aqueous solutions by hydrocalumite

AU - Son, Jeong Woo

AU - Kim, Jae Hyun

AU - Kang, Jin Kyu

AU - Kim, Song Bae

AU - Park, Jeong Ann

AU - Lee, Chang Gu

AU - Choi, Jae Woo

AU - Lee, Sang-Hyup

PY - 2015/11/26

Y1 - 2015/11/26

N2 - In this study, phosphate (P) removal from aqueous solutions by hydrocalumite was investigated using batch experiments and model analyses. The maximum phosphate removal capacity was determined to be 127.53 mg P/g under the given experimental conditions (hydrocalumite dose = 0.05 g/L, initial P concentration = 2–20 mg P/L, reaction time = 24 h). Model analyses showed that the Elovich model was most suitable for describing the kinetic data, whereas the Redlich–Peterson model provided the best fits to the equilibrium data. Furthermore, phosphate removal by hydrocalumite was not sensitive to pH changes between 4.0 and 11.0. A thermodynamic analysis indicated that phosphate removal by hydrocalumite increased with a rise in temperature from 15 to 45°C, suggesting that the removal process was spontaneous and endothermic (ΔH° = 32.05 kJ/mol, ΔS° = 112.86 J/K/mol, ΔG° = −0.47 to −3.86 kJ/mol). The phosphate removal capacity in stream water (5.40–17.25 mg P/g) was also lower than that in a synthetic P solution (6.86–27.51 mg P/g) under the given experimental conditions (initial P concentration = 2 mg P/L, hydrocalumite dose = 0.05–0.3 g/L, reaction time = 24 h). Such a result could possibly be ascribed to the presence of carbonate ions ((Formula presented.)) in the stream water, which could interfere with phosphate removal by hydrocalumite through the precipitation of calcium carbonate (CaCO3).

AB - In this study, phosphate (P) removal from aqueous solutions by hydrocalumite was investigated using batch experiments and model analyses. The maximum phosphate removal capacity was determined to be 127.53 mg P/g under the given experimental conditions (hydrocalumite dose = 0.05 g/L, initial P concentration = 2–20 mg P/L, reaction time = 24 h). Model analyses showed that the Elovich model was most suitable for describing the kinetic data, whereas the Redlich–Peterson model provided the best fits to the equilibrium data. Furthermore, phosphate removal by hydrocalumite was not sensitive to pH changes between 4.0 and 11.0. A thermodynamic analysis indicated that phosphate removal by hydrocalumite increased with a rise in temperature from 15 to 45°C, suggesting that the removal process was spontaneous and endothermic (ΔH° = 32.05 kJ/mol, ΔS° = 112.86 J/K/mol, ΔG° = −0.47 to −3.86 kJ/mol). The phosphate removal capacity in stream water (5.40–17.25 mg P/g) was also lower than that in a synthetic P solution (6.86–27.51 mg P/g) under the given experimental conditions (initial P concentration = 2 mg P/L, hydrocalumite dose = 0.05–0.3 g/L, reaction time = 24 h). Such a result could possibly be ascribed to the presence of carbonate ions ((Formula presented.)) in the stream water, which could interfere with phosphate removal by hydrocalumite through the precipitation of calcium carbonate (CaCO3).

KW - Hydrocalumite

KW - Hydroxyapatite

KW - Layered double hydroxide

KW - Phosphate removal

KW - Precipitation

UR - http://www.scopus.com/inward/record.url?scp=84948168024&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84948168024&partnerID=8YFLogxK

U2 - 10.1080/19443994.2015.1119759

DO - 10.1080/19443994.2015.1119759

M3 - Article

AN - SCOPUS:84948168024

SP - 1

EP - 11

JO - Desalination and Water Treatment

JF - Desalination and Water Treatment

SN - 1944-3994

ER -