Investigation of Taguchi optimization, equilibrium isotherms, and kinetic modeling for phosphorus adsorption onto natural zeolite of clinoptilolite type.
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| Title: | Investigation of Taguchi optimization, equilibrium isotherms, and kinetic modeling for phosphorus adsorption onto natural zeolite of clinoptilolite type. |
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| Authors: | Razmi, Bahareh1, Ghasemi-Fasaei, Reza1 ghasemif@shirazu.ac.ir |
| Source: | Adsorption Science & Technology. Oct2018, Vol. 36 Issue 7/8, p1470-1483. 14p. |
| Subjects: | Adsorption kinetics, Gettering, Activated carbon, Zeolites, Clinoptilolite |
| Abstract: | Adsorption process plays an important role in the removal of phosphorus from aqueous solutions. A laboratory experiment was conducted to investigate the adsorption characteristics of phosphorus onto natural zeolite and to find out the relative importance of some controllable treatments in phosphorus adsorption process using the Taguchi optimization methodology. Results showed that the adsorption of phosphorus in the presence of Fe3+ and Al3+ was higher than that in the absence of these two cations probably due to the adsorption of phosphorus-bearing anions on opposite charges of these cations. Also, increase in contact time tended phosphorus adsorption to be increased. The addition of base and acid treatments caused an increase and a decrease, respectively, on phosphorus adsorption. The order of effectiveness of treatments on the values of phosphorus adsorption was as follows: acid/base treatment >sorbent to sorbate ratio > modification with aluminium (Al)/iron (Fe) >contact time >phosphorus concentration. Phosphorus adsorption data well fitted to the Freundlich isotherm model. The pseudo-second order was the best model describing phosphorus adsorption kinetics. According to the results reported herein, it is assumed that the main mechanism controlling phosphorus adsorption onto natural zeolite is chemisorption. [ABSTRACT FROM AUTHOR] |
| Copyright of Adsorption Science & Technology is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 131977680 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Investigation of Taguchi optimization, equilibrium isotherms, and kinetic modeling for phosphorus adsorption onto natural zeolite of clinoptilolite type. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Razmi%2C+Bahareh%22">Razmi, Bahareh</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ghasemi-Fasaei%2C+Reza%22">Ghasemi-Fasaei, Reza</searchLink><relatesTo>1</relatesTo><i> ghasemif@shirazu.ac.ir</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Adsorption+Science+%26+Technology%22">Adsorption Science & Technology</searchLink>. Oct2018, Vol. 36 Issue 7/8, p1470-1483. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Adsorption+kinetics%22">Adsorption kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Gettering%22">Gettering</searchLink><br /><searchLink fieldCode="DE" term="%22Activated+carbon%22">Activated carbon</searchLink><br /><searchLink fieldCode="DE" term="%22Zeolites%22">Zeolites</searchLink><br /><searchLink fieldCode="DE" term="%22Clinoptilolite%22">Clinoptilolite</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Adsorption process plays an important role in the removal of phosphorus from aqueous solutions. A laboratory experiment was conducted to investigate the adsorption characteristics of phosphorus onto natural zeolite and to find out the relative importance of some controllable treatments in phosphorus adsorption process using the Taguchi optimization methodology. Results showed that the adsorption of phosphorus in the presence of Fe3+ and Al3+ was higher than that in the absence of these two cations probably due to the adsorption of phosphorus-bearing anions on opposite charges of these cations. Also, increase in contact time tended phosphorus adsorption to be increased. The addition of base and acid treatments caused an increase and a decrease, respectively, on phosphorus adsorption. The order of effectiveness of treatments on the values of phosphorus adsorption was as follows: acid/base treatment >sorbent to sorbate ratio > modification with aluminium (Al)/iron (Fe) >contact time >phosphorus concentration. Phosphorus adsorption data well fitted to the Freundlich isotherm model. The pseudo-second order was the best model describing phosphorus adsorption kinetics. According to the results reported herein, it is assumed that the main mechanism controlling phosphorus adsorption onto natural zeolite is chemisorption. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Adsorption Science & Technology is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=131977680 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1177/0263617418779738 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 1470 Subjects: – SubjectFull: Adsorption kinetics Type: general – SubjectFull: Gettering Type: general – SubjectFull: Activated carbon Type: general – SubjectFull: Zeolites Type: general – SubjectFull: Clinoptilolite Type: general Titles: – TitleFull: Investigation of Taguchi optimization, equilibrium isotherms, and kinetic modeling for phosphorus adsorption onto natural zeolite of clinoptilolite type. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Razmi, Bahareh – PersonEntity: Name: NameFull: Ghasemi-Fasaei, Reza IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 02636174 Numbering: – Type: volume Value: 36 – Type: issue Value: 7/8 Titles: – TitleFull: Adsorption Science & Technology Type: main |
| ResultId | 1 |
