Process optimization using response surface methodology for the removal of thorium from aqueous solutions using rice-husk.

Adsorption Diffusion Hydrogen-Ion Concentration Kinetics Metals Oryza Solutions Thorium / analysis Water Water Pollutants, Chemical / analysis
Biosorption Optimization RSM Radionuclide Rice-husk Thorium

Journal

Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657

Informations de publication

Date de publication:
Dec 2019
Historique:
received: 03 05 2019
revised: 25 07 2019
accepted: 29 07 2019
pubmed: 12 8 2019
medline: 18 12 2019
entrez: 12 8 2019
Statut: ppublish

Résumé

The adsorptive capability of rice-husk for the sorption of thorium ions from aqueous solutions in batch mode was studied. The key process variables (initial metal ion concentration, initial solution pH and S/L (solid-to-liquid ratio) were optimized for achieving maximum bioremoval efficiency (B%) by employing the Box-Behnken design (33) in response surface methodology (RSM). A quadratic model developed by fitting the experimental data predicted 93% of the responses and estimated the local maximum of B% as >99% for an initial ThIV concentration of 150  g/L, S/L ratio of 5, and an initial pH of 4, and the reported biosorption capacity (qe) is 15.95 mg/g for the same conditions. Freundlich isotherm (R

Identifiants

DOI: 10.1016/j.chemosphere.2019.124488 PMID: 31401427
pubmed: 31401427
pii: S0045-6535(19)31712-6
doi: 10.1016/j.chemosphere.2019.124488
pii:
doi:

Substances chimiques

Metals 0
Solutions 0
Water Pollutants, Chemical 0
Water 059QF0KO0R
Thorium 60YU5MIG9W

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

124488

Informations de copyright

Copyright © 2019. Published by Elsevier Ltd.

Auteurs

Sayanasri Varala (S)

Center for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Victoria, 3001, Australia; Chemical and Environmental Engineering, School of Engineering, RMIT University, Victoria, 3001, Australia; Department of Chemical Engineering, M V J College of Engineering, Near ITPB Whitefield, Kadugodi, Bengaluru, Karnataka, 560067. India.

Vivek Ravisankar (V)

Center for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Victoria, 3001, Australia.

Maha Al-Ali (M)

Chemical and Environmental Engineering, School of Engineering, RMIT University, Victoria, 3001, Australia.

Mark I Pownceby (MI)

CSIRO Mineral Resources, Clayton, Victoria, 3168, Australia.

Rajarathinam Parthasarathy (R)

Chemical and Environmental Engineering, School of Engineering, RMIT University, Victoria, 3001, Australia.

Suresh K Bhargava (SK)

Center for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Victoria, 3001, Australia. Electronic address: suresh.bhargava@rmit.edu.au.

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Classifications MeSH

questionsmedicales.fr › Phénomènes chimiques › Adsorption › Process optimization using response surface...
questionsmedicales.fr › Phénomènes chimiques › Diffusion › Process optimization using response surface...
questionsmedicales.fr › Phénomènes chimiques › Concentration en ions d'hydrogène › Process optimization using response surface...
questionsmedicales.fr › Phénomènes chimiques › Phénomènes biochimiques › Cinétique › Process optimization using response surface...
questionsmedicales.fr › Produits chimiques inorganiques › Métaux › Process optimization using response surface...
questionsmedicales.fr › Eucaryotes › Viridiplantae › Streptophyta › Embryophyta › Tracheobionta › Magnoliopsida › Poaceae › Oryza › Process optimization using response surface...
questionsmedicales.fr › Préparations pharmaceutiques › Solutions › Process optimization using response surface...
questionsmedicales.fr › Produits chimiques inorganiques › Métaux › Métaux lourds › Thorium › Process optimization using response surface...
questionsmedicales.fr › Produits chimiques inorganiques › Composés de l'oxygène › Oxydes › Eau › Process optimization using response surface...
questionsmedicales.fr › Actions chimiques et utilisations › Actions toxiques › Polluants environnementaux › Polluants de l'eau › Polluants chimiques de l'eau › Process optimization using response surface...