Adsorption of microcystin-LR on mesoporous carbons and its potential use in drinking water source

Jeong Ann Park; Sung Mok Jung; In Geol Yi; Jae Woo Choi; Song Bae Kim; Sang Hyup Lee

doi:10.1016/j.chemosphere.2017.02.150

Adsorption of microcystin-LR on mesoporous carbons and its potential use in drinking water source

Jeong Ann Park, Sung Mok Jung, In Geol Yi, Jae Woo Choi, Song Bae Kim, Sang Hyup Lee

GREEN SCHOOL (Graduate School of Energy and Environment)

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

41 Citations (Scopus)

Abstract

Microcystin-LR (MC-LR) is a common toxin derived from cyanobacterial blooms an effective, rapid and non-toxic method needs to be developed for its removal from drinking water treatment plants (DWTP). For an adsorption-based method, mesoporous carbon can be a promising supplemental adsorbent. The effect of mesoporous carbon (MC1, MC2, and MC3) properties and water quality parameters on the adsorption of MC-LR were investigated and the results were analyzed by kinetic, isotherm, thermodynamic, Derjaguin–Landau–Verwey–Overbeek (DLVO), and intraparticle diffusion models. MC1 was the most appropriate type for the removal of MC-LR with a maximum adsorption capacity of 35,670.49 μg/g. Adsorption of MC-LR is a spontaneous reaction dominated by van der Waals interactions. Pore sizes of 8.5–14 nm enhance the pore diffusion of MC-LR from the surface to the mesopores of MC1. The adsorption capacity was not sensitive to changes in the pH (3.2–8.0) and the existence of organic matter (2–5 mg/L). Furthermore, the final concentration of MC-LR was below the WHO guideline level after a 10-min reaction with 20 mg/L of MC1 in the Nak-Dong River, a drinking water source. The MC-LR adsorption mainly competed with humic substances (500–1000 g/mole); however, they did not have a great effect on adsorption.

Original language	English
Pages (from-to)	15-23
Number of pages	9
Journal	Chemosphere
Volume	177
DOIs	https://doi.org/10.1016/j.chemosphere.2017.02.150
Publication status	Published - 2017

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) Grants funded by the Korea government (MEST) (NRF-2014M3C8A4034282), the Eco-Innovation Environmental Research Laboratory (ERL) project (E416-00020-0606-0) of the Korean Ministry of the Environment (MOE), and the National Research Foundation of Korea Grant funded by the Korean Government (MSIP) (2016 University-Institute cooperation program).

Keywords

Adsorption
Drinking water source
Mesoporous carbon
Microcystin-LR
Pore diffusion
Water quality parameter

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
General Chemistry
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.chemosphere.2017.02.150

Cite this

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title = "Adsorption of microcystin-LR on mesoporous carbons and its potential use in drinking water source",

abstract = "Microcystin-LR (MC-LR) is a common toxin derived from cyanobacterial blooms an effective, rapid and non-toxic method needs to be developed for its removal from drinking water treatment plants (DWTP). For an adsorption-based method, mesoporous carbon can be a promising supplemental adsorbent. The effect of mesoporous carbon (MC1, MC2, and MC3) properties and water quality parameters on the adsorption of MC-LR were investigated and the results were analyzed by kinetic, isotherm, thermodynamic, Derjaguin–Landau–Verwey–Overbeek (DLVO), and intraparticle diffusion models. MC1 was the most appropriate type for the removal of MC-LR with a maximum adsorption capacity of 35,670.49 μg/g. Adsorption of MC-LR is a spontaneous reaction dominated by van der Waals interactions. Pore sizes of 8.5–14 nm enhance the pore diffusion of MC-LR from the surface to the mesopores of MC1. The adsorption capacity was not sensitive to changes in the pH (3.2–8.0) and the existence of organic matter (2–5 mg/L). Furthermore, the final concentration of MC-LR was below the WHO guideline level after a 10-min reaction with 20 mg/L of MC1 in the Nak-Dong River, a drinking water source. The MC-LR adsorption mainly competed with humic substances (500–1000 g/mole); however, they did not have a great effect on adsorption.",

keywords = "Adsorption, Drinking water source, Mesoporous carbon, Microcystin-LR, Pore diffusion, Water quality parameter",

author = "Park, {Jeong Ann} and Jung, {Sung Mok} and Yi, {In Geol} and Choi, {Jae Woo} and Kim, {Song Bae} and Lee, {Sang Hyup}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) Grants funded by the Korea government (MEST) (NRF-2014M3C8A4034282), the Eco-Innovation Environmental Research Laboratory (ERL) project (E416-00020-0606-0) of the Korean Ministry of the Environment (MOE), and the National Research Foundation of Korea Grant funded by the Korean Government (MSIP) (2016 University-Institute cooperation program).",

year = "2017",

doi = "10.1016/j.chemosphere.2017.02.150",

language = "English",

volume = "177",

pages = "15--23",

journal = "Chemosphere",

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T1 - Adsorption of microcystin-LR on mesoporous carbons and its potential use in drinking water source

AU - Park, Jeong Ann

AU - Jung, Sung Mok

AU - Yi, In Geol

AU - Choi, Jae Woo

AU - Kim, Song Bae

AU - Lee, Sang Hyup

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) Grants funded by the Korea government (MEST) (NRF-2014M3C8A4034282), the Eco-Innovation Environmental Research Laboratory (ERL) project (E416-00020-0606-0) of the Korean Ministry of the Environment (MOE), and the National Research Foundation of Korea Grant funded by the Korean Government (MSIP) (2016 University-Institute cooperation program).

PY - 2017

Y1 - 2017

N2 - Microcystin-LR (MC-LR) is a common toxin derived from cyanobacterial blooms an effective, rapid and non-toxic method needs to be developed for its removal from drinking water treatment plants (DWTP). For an adsorption-based method, mesoporous carbon can be a promising supplemental adsorbent. The effect of mesoporous carbon (MC1, MC2, and MC3) properties and water quality parameters on the adsorption of MC-LR were investigated and the results were analyzed by kinetic, isotherm, thermodynamic, Derjaguin–Landau–Verwey–Overbeek (DLVO), and intraparticle diffusion models. MC1 was the most appropriate type for the removal of MC-LR with a maximum adsorption capacity of 35,670.49 μg/g. Adsorption of MC-LR is a spontaneous reaction dominated by van der Waals interactions. Pore sizes of 8.5–14 nm enhance the pore diffusion of MC-LR from the surface to the mesopores of MC1. The adsorption capacity was not sensitive to changes in the pH (3.2–8.0) and the existence of organic matter (2–5 mg/L). Furthermore, the final concentration of MC-LR was below the WHO guideline level after a 10-min reaction with 20 mg/L of MC1 in the Nak-Dong River, a drinking water source. The MC-LR adsorption mainly competed with humic substances (500–1000 g/mole); however, they did not have a great effect on adsorption.

AB - Microcystin-LR (MC-LR) is a common toxin derived from cyanobacterial blooms an effective, rapid and non-toxic method needs to be developed for its removal from drinking water treatment plants (DWTP). For an adsorption-based method, mesoporous carbon can be a promising supplemental adsorbent. The effect of mesoporous carbon (MC1, MC2, and MC3) properties and water quality parameters on the adsorption of MC-LR were investigated and the results were analyzed by kinetic, isotherm, thermodynamic, Derjaguin–Landau–Verwey–Overbeek (DLVO), and intraparticle diffusion models. MC1 was the most appropriate type for the removal of MC-LR with a maximum adsorption capacity of 35,670.49 μg/g. Adsorption of MC-LR is a spontaneous reaction dominated by van der Waals interactions. Pore sizes of 8.5–14 nm enhance the pore diffusion of MC-LR from the surface to the mesopores of MC1. The adsorption capacity was not sensitive to changes in the pH (3.2–8.0) and the existence of organic matter (2–5 mg/L). Furthermore, the final concentration of MC-LR was below the WHO guideline level after a 10-min reaction with 20 mg/L of MC1 in the Nak-Dong River, a drinking water source. The MC-LR adsorption mainly competed with humic substances (500–1000 g/mole); however, they did not have a great effect on adsorption.

KW - Adsorption

KW - Drinking water source

KW - Mesoporous carbon

KW - Microcystin-LR

KW - Pore diffusion

KW - Water quality parameter

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DO - 10.1016/j.chemosphere.2017.02.150

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AN - SCOPUS:85014465988

SN - 0045-6535

VL - 177

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EP - 23

JO - Chemosphere

JF - Chemosphere

ER -

Adsorption of microcystin-LR on mesoporous carbons and its potential use in drinking water source

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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