Phosphorus recovery from water by lanthanum hydroxide embedded interpenetrating network poly (vinyl alcohol)/sodium alginate hydrogel beads

Aijiao Zhou, Chang Zhu, Wangwei Chen, Jun Wan, Tao Tao, Tian C. Zhang, Pengchao Xie

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Sorption is recognized as an effective method for phosphorus removal or recovery in the aqueous environment. In this study, novel poly(vinyl alcohol)/sodium alginate/lanthanum hydroxide (PVA-SA-LH) hydrogel beads with an interpenetrating network (IPN) structure were synthesized, characterized and tested for phosphorus removal/recovery in wastewater. The hydrogel beads were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy with energy dispersive spectrometry (SEM & EDS) and X-ray photoelectron spectroscopy (XPS) before and after sorption. Results indicated the hydrogel beads had an increased phosphorus removal efficiency with an increased hydrogel beads’ dosage, reached their maximum sorption capacity for phosphorus at pH = 4, and exhibited favorable selective sorption towards phosphorus in the present of other anions. The pseudo-second-order kinetic model and Freundlich model fit the sorption process well. After five sorption-desorption runs, the sorbents’ sorption capacity for phosphorus remained above 75% of the first run. The column test indicated a possibility for practical application. Hence, the developed PVA-SA-LH hydrogel beads may be a new kind of sorbent for phosphorus removal and recovery in the future.

Original languageEnglish (US)
Pages (from-to)237-244
Number of pages8
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume554
DOIs
StatePublished - Oct 5 2018

Fingerprint

Sodium alginate
Interpenetrating polymer networks
Hydrogel
Lanthanum
lanthanum
Hydrogels
beads
sorption
Phosphorus
hydroxides
phosphorus
Sorption
alcohols
Alcohols
recovery
sodium
Recovery
Water
water
sorbents

Keywords

  • Lanthanum
  • Phosphorus removal/recovery
  • Poly(vinyl alcohol)
  • Sodium alginate

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Phosphorus recovery from water by lanthanum hydroxide embedded interpenetrating network poly (vinyl alcohol)/sodium alginate hydrogel beads. / Zhou, Aijiao; Zhu, Chang; Chen, Wangwei; Wan, Jun; Tao, Tao; Zhang, Tian C.; Xie, Pengchao.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 554, 05.10.2018, p. 237-244.

Research output: Contribution to journalArticle

@article{b384a79b6e6c43fd8631dc737cef45de,
title = "Phosphorus recovery from water by lanthanum hydroxide embedded interpenetrating network poly (vinyl alcohol)/sodium alginate hydrogel beads",
abstract = "Sorption is recognized as an effective method for phosphorus removal or recovery in the aqueous environment. In this study, novel poly(vinyl alcohol)/sodium alginate/lanthanum hydroxide (PVA-SA-LH) hydrogel beads with an interpenetrating network (IPN) structure were synthesized, characterized and tested for phosphorus removal/recovery in wastewater. The hydrogel beads were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy with energy dispersive spectrometry (SEM & EDS) and X-ray photoelectron spectroscopy (XPS) before and after sorption. Results indicated the hydrogel beads had an increased phosphorus removal efficiency with an increased hydrogel beads’ dosage, reached their maximum sorption capacity for phosphorus at pH = 4, and exhibited favorable selective sorption towards phosphorus in the present of other anions. The pseudo-second-order kinetic model and Freundlich model fit the sorption process well. After five sorption-desorption runs, the sorbents’ sorption capacity for phosphorus remained above 75{\%} of the first run. The column test indicated a possibility for practical application. Hence, the developed PVA-SA-LH hydrogel beads may be a new kind of sorbent for phosphorus removal and recovery in the future.",
keywords = "Lanthanum, Phosphorus removal/recovery, Poly(vinyl alcohol), Sodium alginate",
author = "Aijiao Zhou and Chang Zhu and Wangwei Chen and Jun Wan and Tao Tao and Zhang, {Tian C.} and Pengchao Xie",
year = "2018",
month = "10",
day = "5",
doi = "10.1016/j.colsurfa.2018.05.086",
language = "English (US)",
volume = "554",
pages = "237--244",
journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",
issn = "0927-7757",
publisher = "Elsevier",

}

TY - JOUR

T1 - Phosphorus recovery from water by lanthanum hydroxide embedded interpenetrating network poly (vinyl alcohol)/sodium alginate hydrogel beads

AU - Zhou, Aijiao

AU - Zhu, Chang

AU - Chen, Wangwei

AU - Wan, Jun

AU - Tao, Tao

AU - Zhang, Tian C.

AU - Xie, Pengchao

PY - 2018/10/5

Y1 - 2018/10/5

N2 - Sorption is recognized as an effective method for phosphorus removal or recovery in the aqueous environment. In this study, novel poly(vinyl alcohol)/sodium alginate/lanthanum hydroxide (PVA-SA-LH) hydrogel beads with an interpenetrating network (IPN) structure were synthesized, characterized and tested for phosphorus removal/recovery in wastewater. The hydrogel beads were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy with energy dispersive spectrometry (SEM & EDS) and X-ray photoelectron spectroscopy (XPS) before and after sorption. Results indicated the hydrogel beads had an increased phosphorus removal efficiency with an increased hydrogel beads’ dosage, reached their maximum sorption capacity for phosphorus at pH = 4, and exhibited favorable selective sorption towards phosphorus in the present of other anions. The pseudo-second-order kinetic model and Freundlich model fit the sorption process well. After five sorption-desorption runs, the sorbents’ sorption capacity for phosphorus remained above 75% of the first run. The column test indicated a possibility for practical application. Hence, the developed PVA-SA-LH hydrogel beads may be a new kind of sorbent for phosphorus removal and recovery in the future.

AB - Sorption is recognized as an effective method for phosphorus removal or recovery in the aqueous environment. In this study, novel poly(vinyl alcohol)/sodium alginate/lanthanum hydroxide (PVA-SA-LH) hydrogel beads with an interpenetrating network (IPN) structure were synthesized, characterized and tested for phosphorus removal/recovery in wastewater. The hydrogel beads were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy with energy dispersive spectrometry (SEM & EDS) and X-ray photoelectron spectroscopy (XPS) before and after sorption. Results indicated the hydrogel beads had an increased phosphorus removal efficiency with an increased hydrogel beads’ dosage, reached their maximum sorption capacity for phosphorus at pH = 4, and exhibited favorable selective sorption towards phosphorus in the present of other anions. The pseudo-second-order kinetic model and Freundlich model fit the sorption process well. After five sorption-desorption runs, the sorbents’ sorption capacity for phosphorus remained above 75% of the first run. The column test indicated a possibility for practical application. Hence, the developed PVA-SA-LH hydrogel beads may be a new kind of sorbent for phosphorus removal and recovery in the future.

KW - Lanthanum

KW - Phosphorus removal/recovery

KW - Poly(vinyl alcohol)

KW - Sodium alginate

UR - http://www.scopus.com/inward/record.url?scp=85048899825&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048899825&partnerID=8YFLogxK

U2 - 10.1016/j.colsurfa.2018.05.086

DO - 10.1016/j.colsurfa.2018.05.086

M3 - Article

AN - SCOPUS:85048899825

VL - 554

SP - 237

EP - 244

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

SN - 0927-7757

ER -