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Efficient multistep arsenate removal onto magnetite modified fly ash

Authorized Users Only
2018
Authors
Karanac, Milica
Đolić, Maja
Veličković, Zlate
Kapidžić, Ana
Ivanovski, Valentin N.
Mitrić, Miodrag
Marinković, Aleksandar
Article (Published version)
Metadata
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Abstract
The modification of the fly ash (FA) by magnetite (M) was performed to obtain FAM adsorbent with improved adsorption efficiency for arsenate removal from water. The novel low cost adsorbents are characterized by liquid nitrogen porosimetry (BET), scanning electron microscopy (SEM), X-ray diffraction (XRD), Mossbauer spectroscopy (MB) and Fourier transform infrared (FTIR) spectroscopy. The optimal conditions and key factors influencing the adsorbent synthesis are assessed using the response surface method (RSM). The adsorption experiment was carried out in a batch system by varying the contact time, temperature, pH, and mass of the adsorbent. The adsorption capacity of the FAM adsorbent for As(V), calculated by Langmuir model, was 19.14 mg g(-1). The thermodynamic parameters showed spontaneity of adsorption with low endothermic character. The kinetic data followed the pseudo-second-order kinetic model (PSO), and Weber-Morris model indicated intra-particle diffusion as rate limiting step.... Alternative to low desorption capability of the FAM was found by five consecutive adsorption/magnetite precipitation processes which gave exhausted layered adsorbent with 65.78 mg g(-1) capacity. This research also has shed light on the mechanism of As(V)-ion adsorption, presenting a promising solution for the valorization of a widely abundant industrial waste.

Keywords:
Adsorption / Arsenate / fly ash / Magnetite
Source:
Journal of Environmental Management, 2018, 224, 263-276
Publisher:
  • Academic Press Ltd- Elsevier Science Ltd, London
Funding / projects:
  • Cleaner production: power plant wastewater treatment process development (RS-34009)
  • Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-45019)
  • Investigation of intermetallics and semiconductors and possible application in renewable energy sources (RS-171001)

DOI: 10.1016/j.jenvman.2018.07.051

ISSN: 0301-4797

PubMed: 30055459

WoS: 000442058700029

Scopus: 2-s2.0-85053150725
[ Google Scholar ]
23
15
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3877
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Karanac, Milica
AU  - Đolić, Maja
AU  - Veličković, Zlate
AU  - Kapidžić, Ana
AU  - Ivanovski, Valentin N.
AU  - Mitrić, Miodrag
AU  - Marinković, Aleksandar
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3877
AB  - The modification of the fly ash (FA) by magnetite (M) was performed to obtain FAM adsorbent with improved adsorption efficiency for arsenate removal from water. The novel low cost adsorbents are characterized by liquid nitrogen porosimetry (BET), scanning electron microscopy (SEM), X-ray diffraction (XRD), Mossbauer spectroscopy (MB) and Fourier transform infrared (FTIR) spectroscopy. The optimal conditions and key factors influencing the adsorbent synthesis are assessed using the response surface method (RSM). The adsorption experiment was carried out in a batch system by varying the contact time, temperature, pH, and mass of the adsorbent. The adsorption capacity of the FAM adsorbent for As(V), calculated by Langmuir model, was 19.14 mg g(-1). The thermodynamic parameters showed spontaneity of adsorption with low endothermic character. The kinetic data followed the pseudo-second-order kinetic model (PSO), and Weber-Morris model indicated intra-particle diffusion as rate limiting step. Alternative to low desorption capability of the FAM was found by five consecutive adsorption/magnetite precipitation processes which gave exhausted layered adsorbent with 65.78 mg g(-1) capacity. This research also has shed light on the mechanism of As(V)-ion adsorption, presenting a promising solution for the valorization of a widely abundant industrial waste.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Environmental Management
T1  - Efficient multistep arsenate removal onto magnetite modified fly ash
EP  - 276
SP  - 263
VL  - 224
DO  - 10.1016/j.jenvman.2018.07.051
ER  - 
@article{
author = "Karanac, Milica and Đolić, Maja and Veličković, Zlate and Kapidžić, Ana and Ivanovski, Valentin N. and Mitrić, Miodrag and Marinković, Aleksandar",
year = "2018",
abstract = "The modification of the fly ash (FA) by magnetite (M) was performed to obtain FAM adsorbent with improved adsorption efficiency for arsenate removal from water. The novel low cost adsorbents are characterized by liquid nitrogen porosimetry (BET), scanning electron microscopy (SEM), X-ray diffraction (XRD), Mossbauer spectroscopy (MB) and Fourier transform infrared (FTIR) spectroscopy. The optimal conditions and key factors influencing the adsorbent synthesis are assessed using the response surface method (RSM). The adsorption experiment was carried out in a batch system by varying the contact time, temperature, pH, and mass of the adsorbent. The adsorption capacity of the FAM adsorbent for As(V), calculated by Langmuir model, was 19.14 mg g(-1). The thermodynamic parameters showed spontaneity of adsorption with low endothermic character. The kinetic data followed the pseudo-second-order kinetic model (PSO), and Weber-Morris model indicated intra-particle diffusion as rate limiting step. Alternative to low desorption capability of the FAM was found by five consecutive adsorption/magnetite precipitation processes which gave exhausted layered adsorbent with 65.78 mg g(-1) capacity. This research also has shed light on the mechanism of As(V)-ion adsorption, presenting a promising solution for the valorization of a widely abundant industrial waste.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Environmental Management",
title = "Efficient multistep arsenate removal onto magnetite modified fly ash",
pages = "276-263",
volume = "224",
doi = "10.1016/j.jenvman.2018.07.051"
}
Karanac, M., Đolić, M., Veličković, Z., Kapidžić, A., Ivanovski, V. N., Mitrić, M.,& Marinković, A.. (2018). Efficient multistep arsenate removal onto magnetite modified fly ash. in Journal of Environmental Management
Academic Press Ltd- Elsevier Science Ltd, London., 224, 263-276.
https://doi.org/10.1016/j.jenvman.2018.07.051
Karanac M, Đolić M, Veličković Z, Kapidžić A, Ivanovski VN, Mitrić M, Marinković A. Efficient multistep arsenate removal onto magnetite modified fly ash. in Journal of Environmental Management. 2018;224:263-276.
doi:10.1016/j.jenvman.2018.07.051 .
Karanac, Milica, Đolić, Maja, Veličković, Zlate, Kapidžić, Ana, Ivanovski, Valentin N., Mitrić, Miodrag, Marinković, Aleksandar, "Efficient multistep arsenate removal onto magnetite modified fly ash" in Journal of Environmental Management, 224 (2018):263-276,
https://doi.org/10.1016/j.jenvman.2018.07.051 . .

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