Reactive ceramic pellets incorporated iron for removing As(III), As(V), and Cr(VI) from aqueous solutions

Sunwon Rha, Yun Sik Gong, Ho Young Jo

Research output: Contribution to journalArticle

Abstract

A ceramic filter coated with a reactive material has a high thermal and chemical stability and can be used to treat wastewater under extreme conditions. With the aim of enhancing the reactivity of conventional ceramic materials, the feasibility of incorporating an iron material as the reactive material into conventional ceramic materials was evaluated. Reactive ceramic pellets were synthesized by mixing zero-valent iron (ZVI) with conventional ceramic materials composed of primarily alumina in order to enhance the reactivity of the conventional ceramic materials. To evaluate the removal of As(III), As(V), and Cr(VI) from aqueous solutions, batch sorption tests were conducted under various conditions (i.e., pH and solid-to-liquid ratio) using synthesized ceramic pellets incorporating various iron contents and ZVI and aluminum oxide (Al2O3) as reference materials. Results show that ZVI had a higher sorption capacity than Al2O3 under acidic conditions, and the adsorption capacity of synthesized ceramic pellets for As and Cr increased when the iron content of the synthesized ceramic pellets increased. These results indicate that the addition of iron materials into conventional ceramic materials can enhance the reactivity of the conventional ceramic material for removal of As and Cr from aqueous solutions.

Original languageEnglish
Pages (from-to)174-186
Number of pages13
JournalDesalination and Water Treatment
Volume158
DOIs
Publication statusPublished - 2019 Aug 1

Fingerprint

ceramics
Ceramic materials
aqueous solution
Iron
iron
Sorption
aluminum oxide
Chemical stability
material
sorption
Wastewater
Thermodynamic stability
Alumina
Aluminum
Adsorption
Oxides
iron oxide
Liquids
filter
adsorption

Keywords

  • Alumina
  • Arsenic
  • Ceramic material
  • Chromium
  • Zero-valent iron

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

Cite this

Reactive ceramic pellets incorporated iron for removing As(III), As(V), and Cr(VI) from aqueous solutions. / Rha, Sunwon; Gong, Yun Sik; Jo, Ho Young.

In: Desalination and Water Treatment, Vol. 158, 01.08.2019, p. 174-186.

Research output: Contribution to journalArticle

@article{4295cb373304438aa49b52a5c9e7202a,
title = "Reactive ceramic pellets incorporated iron for removing As(III), As(V), and Cr(VI) from aqueous solutions",
abstract = "A ceramic filter coated with a reactive material has a high thermal and chemical stability and can be used to treat wastewater under extreme conditions. With the aim of enhancing the reactivity of conventional ceramic materials, the feasibility of incorporating an iron material as the reactive material into conventional ceramic materials was evaluated. Reactive ceramic pellets were synthesized by mixing zero-valent iron (ZVI) with conventional ceramic materials composed of primarily alumina in order to enhance the reactivity of the conventional ceramic materials. To evaluate the removal of As(III), As(V), and Cr(VI) from aqueous solutions, batch sorption tests were conducted under various conditions (i.e., pH and solid-to-liquid ratio) using synthesized ceramic pellets incorporating various iron contents and ZVI and aluminum oxide (Al2O3) as reference materials. Results show that ZVI had a higher sorption capacity than Al2O3 under acidic conditions, and the adsorption capacity of synthesized ceramic pellets for As and Cr increased when the iron content of the synthesized ceramic pellets increased. These results indicate that the addition of iron materials into conventional ceramic materials can enhance the reactivity of the conventional ceramic material for removal of As and Cr from aqueous solutions.",
keywords = "Alumina, Arsenic, Ceramic material, Chromium, Zero-valent iron",
author = "Sunwon Rha and Gong, {Yun Sik} and Jo, {Ho Young}",
year = "2019",
month = "8",
day = "1",
doi = "10.5004/dwt.2019.24244",
language = "English",
volume = "158",
pages = "174--186",
journal = "Desalination and Water Treatment",
issn = "1944-3994",
publisher = "Taylor and Francis Ltd.",

}

TY - JOUR

T1 - Reactive ceramic pellets incorporated iron for removing As(III), As(V), and Cr(VI) from aqueous solutions

AU - Rha, Sunwon

AU - Gong, Yun Sik

AU - Jo, Ho Young

PY - 2019/8/1

Y1 - 2019/8/1

N2 - A ceramic filter coated with a reactive material has a high thermal and chemical stability and can be used to treat wastewater under extreme conditions. With the aim of enhancing the reactivity of conventional ceramic materials, the feasibility of incorporating an iron material as the reactive material into conventional ceramic materials was evaluated. Reactive ceramic pellets were synthesized by mixing zero-valent iron (ZVI) with conventional ceramic materials composed of primarily alumina in order to enhance the reactivity of the conventional ceramic materials. To evaluate the removal of As(III), As(V), and Cr(VI) from aqueous solutions, batch sorption tests were conducted under various conditions (i.e., pH and solid-to-liquid ratio) using synthesized ceramic pellets incorporating various iron contents and ZVI and aluminum oxide (Al2O3) as reference materials. Results show that ZVI had a higher sorption capacity than Al2O3 under acidic conditions, and the adsorption capacity of synthesized ceramic pellets for As and Cr increased when the iron content of the synthesized ceramic pellets increased. These results indicate that the addition of iron materials into conventional ceramic materials can enhance the reactivity of the conventional ceramic material for removal of As and Cr from aqueous solutions.

AB - A ceramic filter coated with a reactive material has a high thermal and chemical stability and can be used to treat wastewater under extreme conditions. With the aim of enhancing the reactivity of conventional ceramic materials, the feasibility of incorporating an iron material as the reactive material into conventional ceramic materials was evaluated. Reactive ceramic pellets were synthesized by mixing zero-valent iron (ZVI) with conventional ceramic materials composed of primarily alumina in order to enhance the reactivity of the conventional ceramic materials. To evaluate the removal of As(III), As(V), and Cr(VI) from aqueous solutions, batch sorption tests were conducted under various conditions (i.e., pH and solid-to-liquid ratio) using synthesized ceramic pellets incorporating various iron contents and ZVI and aluminum oxide (Al2O3) as reference materials. Results show that ZVI had a higher sorption capacity than Al2O3 under acidic conditions, and the adsorption capacity of synthesized ceramic pellets for As and Cr increased when the iron content of the synthesized ceramic pellets increased. These results indicate that the addition of iron materials into conventional ceramic materials can enhance the reactivity of the conventional ceramic material for removal of As and Cr from aqueous solutions.

KW - Alumina

KW - Arsenic

KW - Ceramic material

KW - Chromium

KW - Zero-valent iron

UR - http://www.scopus.com/inward/record.url?scp=85067948862&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85067948862&partnerID=8YFLogxK

U2 - 10.5004/dwt.2019.24244

DO - 10.5004/dwt.2019.24244

M3 - Article

AN - SCOPUS:85067948862

VL - 158

SP - 174

EP - 186

JO - Desalination and Water Treatment

JF - Desalination and Water Treatment

SN - 1944-3994

ER -