Adsorption of ammonium nitrogen and phosphate onto basanite and evaluation of toxicity

Jae Woo Choi; Jae Chun Ryu; Kyu Sang Kwon; Mee Kyung Song; Soonjae Lee; Song Bae Kim; Sang Hyup Lee

doi:10.1007/s11270-014-2059-x

Adsorption of ammonium nitrogen and phosphate onto basanite and evaluation of toxicity

Jae Woo Choi, Jae Chun Ryu, Kyu Sang Kwon, Mee Kyung Song, Soonjae Lee, Song Bae Kim, Sang Hyup Lee

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

12 Citations (Scopus)

Abstract

Pure and surface-modified basanites (SMBs) were investigated for treatment of nutrients such as ammonium nitrogen and phosphate in aqueous solution. Basanite is a volcanic rock with a large specific surface area due to its vesicular structure. Moreover, basanite contains silica and calcium, promoting surface fixation of hydroxyl groups. The equilibrium adsorption of ammonium nitrogen and phosphate in aqueous solutions by four types of basanite adsorbents was evaluated. The adsorption isotherms were well described by a Langmuir adsorption model. Among the adsorbents, the SMB prepared by reaction with 20 % sodium hydroxide had the highest adsorption capacities for ammonium nitrogen (5.38 mg/g) and phosphate (19.74 mg/g). In addition, cytotoxicity of the pure basanite and SMBs was also evaluated. None of the basanite adsorbents showed cytotoxic effects to human cells at concentration in effluents. Thus, the SMBs were found to be promising materials for removal of ammonium nitrogen and phosphate from sewage.

Original language	English
Article number	2059
Journal	Water, Air, and Soil Pollution
Volume	225
Issue number	8
DOIs	https://doi.org/10.1007/s11270-014-2059-x
Publication status	Published - 2014 Aug

Bibliographical note

Funding Information:
Acknowledgments This research was supported by a grant from the Korea Institute of Science and Technology (KIST) Institutional Program (2E24731).

Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.

Keywords

Adsorption
Ammonium nitrogen
Basanite
Phosphate
Toxicity

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Ecological Modelling
Water Science and Technology
Pollution

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title = "Adsorption of ammonium nitrogen and phosphate onto basanite and evaluation of toxicity",

abstract = "Pure and surface-modified basanites (SMBs) were investigated for treatment of nutrients such as ammonium nitrogen and phosphate in aqueous solution. Basanite is a volcanic rock with a large specific surface area due to its vesicular structure. Moreover, basanite contains silica and calcium, promoting surface fixation of hydroxyl groups. The equilibrium adsorption of ammonium nitrogen and phosphate in aqueous solutions by four types of basanite adsorbents was evaluated. The adsorption isotherms were well described by a Langmuir adsorption model. Among the adsorbents, the SMB prepared by reaction with 20 % sodium hydroxide had the highest adsorption capacities for ammonium nitrogen (5.38 mg/g) and phosphate (19.74 mg/g). In addition, cytotoxicity of the pure basanite and SMBs was also evaluated. None of the basanite adsorbents showed cytotoxic effects to human cells at concentration in effluents. Thus, the SMBs were found to be promising materials for removal of ammonium nitrogen and phosphate from sewage.",

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note = "Funding Information: Acknowledgments This research was supported by a grant from the Korea Institute of Science and Technology (KIST) Institutional Program (2E24731). Copyright: Copyright 2015 Elsevier B.V., All rights reserved.",

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doi = "10.1007/s11270-014-2059-x",

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AU - Lee, Soonjae

AU - Kim, Song Bae

AU - Lee, Sang Hyup

N1 - Funding Information: Acknowledgments This research was supported by a grant from the Korea Institute of Science and Technology (KIST) Institutional Program (2E24731). Copyright: Copyright 2015 Elsevier B.V., All rights reserved.

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N2 - Pure and surface-modified basanites (SMBs) were investigated for treatment of nutrients such as ammonium nitrogen and phosphate in aqueous solution. Basanite is a volcanic rock with a large specific surface area due to its vesicular structure. Moreover, basanite contains silica and calcium, promoting surface fixation of hydroxyl groups. The equilibrium adsorption of ammonium nitrogen and phosphate in aqueous solutions by four types of basanite adsorbents was evaluated. The adsorption isotherms were well described by a Langmuir adsorption model. Among the adsorbents, the SMB prepared by reaction with 20 % sodium hydroxide had the highest adsorption capacities for ammonium nitrogen (5.38 mg/g) and phosphate (19.74 mg/g). In addition, cytotoxicity of the pure basanite and SMBs was also evaluated. None of the basanite adsorbents showed cytotoxic effects to human cells at concentration in effluents. Thus, the SMBs were found to be promising materials for removal of ammonium nitrogen and phosphate from sewage.

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KW - Phosphate

KW - Toxicity

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Adsorption of ammonium nitrogen and phosphate onto basanite and evaluation of toxicity

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