Predicting breakthrough of vanadium in fixed-bed absorbent columns with complex groundwater chemistries: A multi-component granular ferric hydroxide-vanadate-arsenate-phosphate-silicic acid system

Publication type:
Journal article
Metadata:
Autoren
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000600678000007&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1016/j.wroa.2020.100061
eISSN
2589-9147
Externe Identifier
  • Clarivate Analytics Document Solution ID: PH8TO
  • PubMed Identifier: 32817931
Zeitschrift
WATER RESEARCH X
Schlüsselwörter
  • Vanadate
  • Adsorption
  • FBA
  • HSDM
  • RSCCT
  • CD-MUSIC
Artikelnummer
ARTN 100061
Datum der Veröffentlichung
2020
Status
Published
Titel
Predicting breakthrough of vanadium in fixed-bed absorbent columns with complex groundwater chemistries: A multi-component granular ferric hydroxide-vanadate-arsenate-phosphate-silicic acid system
Sub types
  • Article
Ausgabe der Zeitschrift
9

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
DOI
10.1016/j.wroa.2020.100061
ISSN
2589-9147
Zeitschrift
Water Research X
Sprache
en
Artikelnummer
100061
Paginierung
100061 - 100061
Datum der Veröffentlichung
2020
Status
Published
Herausgeber
Elsevier BV
Herausgeber URL
http://dx.doi.org/10.1016/j.wroa.2020.100061
Datum der Datenerfassung
2022
Titel
Predicting breakthrough of vanadium in fixed-bed absorbent columns with complex groundwater chemistries: A multi-component granular ferric hydroxide−vanadate−arsenate−phosphate−silicic acid system
Ausgabe der Zeitschrift
9

Data source: Crossref

Abstract
Granular ferric hydroxide (GFH) is often used for fixed bed adsorbent (FBA) columns in groundwater purification units around the world to remove arsenate contaminations. Groundwater can contain also other toxic (e.g., antimonite and vanadate) and non-toxic oxo-anions (phosphate and silicic acid) that are known to affect FBA lifetimes. Therefore, understanding the breakthrough of toxic compounds intended for removal by FBA is essential to their design, and is important to predict accurately breakthrough curves (BTCs) for FBAs in waterworks to plan future operating costs. Rapid small-scale column tests (RSCCT) and pilot-scale FBA were used to simulate vanadate BTCs for complex groundwater chemistries. The BTCs were simulated successfully using a homogeneous surface diffusion model (HSDM) combining equilibrium chemical adsorption and kinetic mass transfer. Adsorption parameters for various groundwater compositions were predicted using the CD-MUSIC surface complexation model, which was set up for the first time for akaganéite-based granular ferric hydroxide with a competitive multi-solute system. The results indicated that V(V) is less prone to competitive adsorption effects, and use of the homogeneous surface diffusion model to predict the BTCs requires then the kinetic mass transfer Biot number to be used as the only fitting parameter. On the other hand, a concentration overshoot could be observed for the two weaker absorbed oxo-anions arsenate and phosphate because of displacement by the vanadate. Results of pilot scale test column BTCs of vanadate for three waterworks with different groundwater compositions could be favorably extrapolated with a unique Freundlich constant k<sub>F</sub> of 3.2 derived on basis of the multi-solute CD-MUSIC model, and a unique Biot number of 37 fixed for all three different test sites.
Addresses
  • Geosciences Institute, Johannes Gutenberg-University, Becherweg 21, Mainz, 55099, Germany.
Autoren
DOI
10.1016/j.wroa.2020.100061
eISSN
2589-9147
Externe Identifier
  • PubMed Identifier: 32817931
  • PubMed Central ID: PMC7426449
Funding acknowledgements
  • Deutsche Forschungsgemeinschaft: DFG KE508/27
  • Bundesministerium für Bildung und Forschung: 03G0710
Open access
true
ISSN
2589-9147
Zeitschrift
Water research X
Sprache
eng
Medium
Electronic-eCollection
Online publication date
2020
Open access status
Open Access
Paginierung
100061
Datum der Veröffentlichung
2020
Status
Published
Publisher licence
CC BY
Datum der Datenerfassung
2020
Titel
Predicting breakthrough of vanadium in fixed-bed absorbent columns with complex groundwater chemistries: A multi-component granular ferric hydroxide-vanadate-arsenate-phosphate-silicic acid system.
Sub types
  • research-article
  • Journal Article
Ausgabe der Zeitschrift
9

Files

https://europepmc.org/articles/PMC7426449?pdf=render

Data source: Europe PubMed Central

Abstract
Granular ferric hydroxide (GFH) is often used for fixed bed adsorbent (FBA) columns in groundwater purification units around the world to remove arsenate contaminations. Groundwater can contain also other toxic (e.g., antimonite and vanadate) and non-toxic oxo-anions (phosphate and silicic acid) that are known to affect FBA lifetimes. Therefore, understanding the breakthrough of toxic compounds intended for removal by FBA is essential to their design, and is important to predict accurately breakthrough curves (BTCs) for FBAs in waterworks to plan future operating costs. Rapid small-scale column tests (RSCCT) and pilot-scale FBA were used to simulate vanadate BTCs for complex groundwater chemistries. The BTCs were simulated successfully using a homogeneous surface diffusion model (HSDM) combining equilibrium chemical adsorption and kinetic mass transfer. Adsorption parameters for various groundwater compositions were predicted using the CD-MUSIC surface complexation model, which was set up for the first time for akaganéite-based granular ferric hydroxide with a competitive multi-solute system. The results indicated that V(V) is less prone to competitive adsorption effects, and use of the homogeneous surface diffusion model to predict the BTCs requires then the kinetic mass transfer Biot number to be used as the only fitting parameter. On the other hand, a concentration overshoot could be observed for the two weaker absorbed oxo-anions arsenate and phosphate because of displacement by the vanadate. Results of pilot scale test column BTCs of vanadate for three waterworks with different groundwater compositions could be favorably extrapolated with a unique Freundlich constant kF of 3.2 derived on basis of the multi-solute CD-MUSIC model, and a unique Biot number of 37 fixed for all three different test sites.
Date of acceptance
2020
Autoren
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/32817931
DOI
10.1016/j.wroa.2020.100061
eISSN
2589-9147
Externe Identifier
  • PubMed Central ID: PMC7426449
Zeitschrift
Water Res X
Schlüsselwörter
  • Adsorption
  • CD-MUSIC
  • FBA
  • HSDM
  • RSCCT
  • Vanadate
Sprache
eng
Country
England
Paginierung
100061
PII
S2589-9147(20)30021-9
Datum der Veröffentlichung
2020
Status
Published online
Titel
Predicting breakthrough of vanadium in fixed-bed absorbent columns with complex groundwater chemistries: A multi-component granular ferric hydroxide-vanadate-arsenate-phosphate-silicic acid system.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
9

Data source: PubMed

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