New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash

Forminte (Litu), Loredana; Ciobanu, Gabriela; Buema, Gabriela; Lupu, Nicoleta; Chiriac, Horia; Castro, Consuelo Gomez De; Harja, Maria

Loredana Forminte (Litu), Gabriela Ciobanu, Gabriela Buema, Nicoleta Lupu, Horia Chiriac, Consuelo Gomez De Castro, Maria Harja

New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash

Abstract:

In the current work, the preparation of a complex wastewater coagulant based on polymeric sulfates of aluminum/iron from fly ash is presented. The performance of the coagulation-flocculation process is mostly influenced by the coagulant type, which enhances the aggregation of particles and leads to formation of fast-settling flocs by charge neutralization or chain-bridging mechanisms. Within the preparation process, the reaction temperature was controlled at 80°C and 90°C for 4 h, the synthesized materials being characterized through different techniques (SEM, EDAX, FTIR, and XRD) and further used as coagulants for real wastewater treatment. As a novelty of this study, it can be mentioned that there were analyzed the possibilities of capitalization of Romanian fly ash collected from Iasi area and its transformation into complex based on aluminum - iron sulfates. Fly ash containing different concentrations of Fe2O3 and Al2O3 was successfully used in producing complex coagulants by reacting with 10% technical sulfuric acid solution. The produced complex coagulants contain both polymeric ferric sulfate (PFS) and polymeric aluminum sulfate (PAS) (demonstrated by complex characterization) and proved to be effective in wastewater treatment. These sustainable materials exhibited a good performance in coagulation-flocculation process (e.g. it was obtained a TSS removal efficiency of 84% at the coagulant dosage of 60 mg/L).

Keywords:
acid attack; fly ash; polymeric aluminum sulfate; polymeric ferric sulfate

Issue: 2020, Volume 71, Issue 7

Pages: 48-58

Publication date: 2020/8/4

https://doi.org/10.37358/RC.20.7.8224

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
FORMINTE (LITU), L., CIOBANU, G., BUEMA, G., LUPU, N., CHIRIAC, H., CASTRO, C.G.D., HARJA, M., New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash, Rev. Chim., 71(7), 2020, 48-58.

Vancouver
Forminte (Litu) L, Ciobanu G, Buema G, Lupu N, Chiriac H, Castro CGD, Harja M. New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash. Rev. Chim.[internet]. 2020 Jul;71(7):48-58. Available from: https://doi.org/10.37358/RC.20.7.8224

APA 6th edition
Forminte (Litu), L., Ciobanu, G., Buema, G., Lupu, N., Chiriac, H., Castro, C.G.D. & Harja, M. (2020). New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash. Revista de Chimie, 71(7), 48-58. https://doi.org/10.37358/RC.20.7.8224

Harvard
Forminte (Litu), L., Ciobanu, G., Buema, G., Lupu, N., Chiriac, H., Castro, C.G.D., Harja, M. (2020). 'New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash', Revista de Chimie, 71(7), pp. 48-58. https://doi.org/10.37358/RC.20.7.8224

IEEE
L. Forminte(Litu), G. Ciobanu, G. Buema, N. Lupu, H. Chiriac, C.G.D. Castro, M. Harja, "New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash". Revista de Chimie, vol. 71, no. 7, pp. 48-58, 2020. [online]. https://doi.org/10.37358/RC.20.7.8224

Text
Loredana Forminte(Litu), Gabriela Ciobanu, Gabriela Buema, Nicoleta Lupu, Horia Chiriac, Consuelo Gomez De Castro, Maria Harja,
New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash,
Revista de Chimie,
Volume 71, Issue 7,
2020,
Pages 48-58,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.7.8224.
(https://revistadechimie.ro/Articles.asp?ID=8224)
Keywords: acid attack; fly ash; polymeric aluminum sulfate; polymeric ferric sulfate

RIS
TY - JOUR
T1 - New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash
A1 - Forminte (Litu), Loredana
A2 - Ciobanu, Gabriela
A3 - Buema, Gabriela
A4 - Lupu, Nicoleta
A5 - Chiriac, Horia
A6 - Castro, Consuelo Gomez De
A7 - Harja, Maria
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 7
SP - 48
EP - 58
UR - https://doi.org/10.37358/RC.20.7.8224
KW - acid attack
KW - fly ash
KW - polymeric aluminum sulfate
KW - polymeric ferric sulfate
ER -

BibTex
@article{RevCh2020P48,
author = {Forminte (Litu) Loredana and Ciobanu Gabriela and Buema Gabriela and Lupu Nicoleta and Chiriac Horia and Castro Consuelo Gomez De and Harja Maria},
title = {New Materials Synthesized by Sulfuric Acid Attack Over Power Plant Fly Ash},
journal = {Revista de Chimie},
volume = {71},
number = {7},
pages = {48-58},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.7.8224},
url = {https://revistadechimie.ro/Articles.asp?ID=8224}
}

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