Coagulation removal of Sb(V) from textile wastewater matrix with enhanced strategy: Comparison study and mechanism analysis

Yuanli Liu; Zimo Lou; Kunlun Yang; Zheni Wang; Chuchen Zhou; Yizhou Li; Zhen Cao; Xinhua Xu

doi:10.1016/j.chemosphere.2019.124494

Coagulation removal of Sb(V) from textile wastewater matrix with enhanced strategy: Comparison study and mechanism analysis

Yuanli Liu, Zimo Lou, Kunlun Yang, Zheni Wang, Chuchen Zhou, Yizhou Li, Zhen Cao, Xinhua Xu^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

46 Citations (Scopus)

Abstract

The wide use of antimony in textile industry has posed threat to ecological health and attracted increased attention. The objective of this work was to develop enhanced coagulation strategies including PFS/FeSO₄ and aerated PFS/FeSO₄ for efficient antimony elimination from textile wastewater matrix. With a dosage of 0.75 mM Fe, aerated PFS/FeSO₄ coagulation could achieve 82.6% removal of 500 μg L⁻¹ Sb(V) from simulated textile wastewater, which was better than PFS (77.6%) and PFS/FeSO₄ coagulation (79.9%). Compared with PFS and PFS/FeSO₄ coagulation, aerated PFS/FeSO₄ strategy could meet the indirect discharge standard (<100 μg L⁻¹), without any other additional treatment. pH ranged from 5 to 6 could reach 93.8% Sb(V) removal, by affecting coagulant hydrolysis and charges on flocs. Phosphate ion with a level more than 0.03 mM could compete with Sb(V) species and thus reduced its removal. Temperature of 35 °C could lead to enhanced Sb(V) removal by accelerating coagulant hydrolysis. Flocs of aerated PFS/FeSO₄ had smaller average size than that of PFS and PFS/FeSO₄ coagulation. FeOOH was the hydrolysis product of aerated PFS/FeSO₄ strategy. Adsorption, rather than direct and co-precipitation was predominant in the coagulation mechanism. From the phosphate extraction test, 64% of the Sb could form inner-sphere surface complex during aerated PFS/FeSO₄ coagulation removal.

Original language	English
Article number	124494
Journal	Chemosphere
Volume	237
ISSN	0045-6535
DOIs	https://doi.org/10.1016/j.chemosphere.2019.124494
Publication status	Published - Dec 2019

Bibliographical note

Funding Information:
The authors would be grateful to the Major Science and Technology Program for National Water Pollution Control and Treatment (No. 2017ZX07206-002 ), the Science and Technology Project of Zhejiang Province, China ( LGF18B070001 ) and Zhejiang Province Key Science and Technology Projects ( 2015C03008 ) for their support.

Publisher Copyright:
© 2019 Elsevier Ltd

Keywords

Adsorption
Aerated PFS/FeSO coagulation
Antimony removal
Textile wastewater

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@article{3fed05f1513c4741b4f46a2384d39404,

title = "Coagulation removal of Sb(V) from textile wastewater matrix with enhanced strategy: Comparison study and mechanism analysis",

abstract = "The wide use of antimony in textile industry has posed threat to ecological health and attracted increased attention. The objective of this work was to develop enhanced coagulation strategies including PFS/FeSO4 and aerated PFS/FeSO4 for efficient antimony elimination from textile wastewater matrix. With a dosage of 0.75 mM Fe, aerated PFS/FeSO4 coagulation could achieve 82.6% removal of 500 μg L−1 Sb(V) from simulated textile wastewater, which was better than PFS (77.6%) and PFS/FeSO4 coagulation (79.9%). Compared with PFS and PFS/FeSO4 coagulation, aerated PFS/FeSO4 strategy could meet the indirect discharge standard (<100 μg L−1), without any other additional treatment. pH ranged from 5 to 6 could reach 93.8% Sb(V) removal, by affecting coagulant hydrolysis and charges on flocs. Phosphate ion with a level more than 0.03 mM could compete with Sb(V) species and thus reduced its removal. Temperature of 35 °C could lead to enhanced Sb(V) removal by accelerating coagulant hydrolysis. Flocs of aerated PFS/FeSO4 had smaller average size than that of PFS and PFS/FeSO4 coagulation. FeOOH was the hydrolysis product of aerated PFS/FeSO4 strategy. Adsorption, rather than direct and co-precipitation was predominant in the coagulation mechanism. From the phosphate extraction test, 64% of the Sb could form inner-sphere surface complex during aerated PFS/FeSO4 coagulation removal.",

keywords = "Adsorption, Aerated PFS/FeSO coagulation, Antimony removal, Textile wastewater",

author = "Yuanli Liu and Zimo Lou and Kunlun Yang and Zheni Wang and Chuchen Zhou and Yizhou Li and Zhen Cao and Xinhua Xu",

note = "Funding Information: The authors would be grateful to the Major Science and Technology Program for National Water Pollution Control and Treatment (No. 2017ZX07206-002 ), the Science and Technology Project of Zhejiang Province, China ( LGF18B070001 ) and Zhejiang Province Key Science and Technology Projects ( 2015C03008 ) for their support. Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

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doi = "10.1016/j.chemosphere.2019.124494",

language = "English",

volume = "237",

journal = "Chemosphere",

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TY - JOUR

T1 - Coagulation removal of Sb(V) from textile wastewater matrix with enhanced strategy

T2 - Comparison study and mechanism analysis

AU - Liu, Yuanli

AU - Lou, Zimo

AU - Yang, Kunlun

AU - Wang, Zheni

AU - Zhou, Chuchen

AU - Li, Yizhou

AU - Cao, Zhen

AU - Xu, Xinhua

N1 - Funding Information: The authors would be grateful to the Major Science and Technology Program for National Water Pollution Control and Treatment (No. 2017ZX07206-002 ), the Science and Technology Project of Zhejiang Province, China ( LGF18B070001 ) and Zhejiang Province Key Science and Technology Projects ( 2015C03008 ) for their support. Publisher Copyright: © 2019 Elsevier Ltd

PY - 2019/12

Y1 - 2019/12

N2 - The wide use of antimony in textile industry has posed threat to ecological health and attracted increased attention. The objective of this work was to develop enhanced coagulation strategies including PFS/FeSO4 and aerated PFS/FeSO4 for efficient antimony elimination from textile wastewater matrix. With a dosage of 0.75 mM Fe, aerated PFS/FeSO4 coagulation could achieve 82.6% removal of 500 μg L−1 Sb(V) from simulated textile wastewater, which was better than PFS (77.6%) and PFS/FeSO4 coagulation (79.9%). Compared with PFS and PFS/FeSO4 coagulation, aerated PFS/FeSO4 strategy could meet the indirect discharge standard (<100 μg L−1), without any other additional treatment. pH ranged from 5 to 6 could reach 93.8% Sb(V) removal, by affecting coagulant hydrolysis and charges on flocs. Phosphate ion with a level more than 0.03 mM could compete with Sb(V) species and thus reduced its removal. Temperature of 35 °C could lead to enhanced Sb(V) removal by accelerating coagulant hydrolysis. Flocs of aerated PFS/FeSO4 had smaller average size than that of PFS and PFS/FeSO4 coagulation. FeOOH was the hydrolysis product of aerated PFS/FeSO4 strategy. Adsorption, rather than direct and co-precipitation was predominant in the coagulation mechanism. From the phosphate extraction test, 64% of the Sb could form inner-sphere surface complex during aerated PFS/FeSO4 coagulation removal.

AB - The wide use of antimony in textile industry has posed threat to ecological health and attracted increased attention. The objective of this work was to develop enhanced coagulation strategies including PFS/FeSO4 and aerated PFS/FeSO4 for efficient antimony elimination from textile wastewater matrix. With a dosage of 0.75 mM Fe, aerated PFS/FeSO4 coagulation could achieve 82.6% removal of 500 μg L−1 Sb(V) from simulated textile wastewater, which was better than PFS (77.6%) and PFS/FeSO4 coagulation (79.9%). Compared with PFS and PFS/FeSO4 coagulation, aerated PFS/FeSO4 strategy could meet the indirect discharge standard (<100 μg L−1), without any other additional treatment. pH ranged from 5 to 6 could reach 93.8% Sb(V) removal, by affecting coagulant hydrolysis and charges on flocs. Phosphate ion with a level more than 0.03 mM could compete with Sb(V) species and thus reduced its removal. Temperature of 35 °C could lead to enhanced Sb(V) removal by accelerating coagulant hydrolysis. Flocs of aerated PFS/FeSO4 had smaller average size than that of PFS and PFS/FeSO4 coagulation. FeOOH was the hydrolysis product of aerated PFS/FeSO4 strategy. Adsorption, rather than direct and co-precipitation was predominant in the coagulation mechanism. From the phosphate extraction test, 64% of the Sb could form inner-sphere surface complex during aerated PFS/FeSO4 coagulation removal.

KW - Adsorption

KW - Aerated PFS/FeSO coagulation

KW - Antimony removal

KW - Textile wastewater

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U2 - 10.1016/j.chemosphere.2019.124494

DO - 10.1016/j.chemosphere.2019.124494

M3 - Journal article

C2 - 31394444

AN - SCOPUS:85070079011

SN - 0045-6535

VL - 237

JO - Chemosphere

JF - Chemosphere

M1 - 124494

ER -

Coagulation removal of Sb(V) from textile wastewater matrix with enhanced strategy: Comparison study and mechanism analysis

Abstract

Bibliographical note

Keywords

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