Adsorption kinetic of Acinetobacter baylyi for Cr (VI) removal under acidic condition
Dried cell of a new strain, known as Acinetobacter baylyi, showed appropriate biological removal of Cr (VI) under acidic condition. The adsorption parameters optimised were: biomass dose (2.0 g/L), initial pH (2.0), agitation speed (250 rpm), initial Cr (VI) concentration (10–60 mg/L), temperature...
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| Format: | Article |
| Language: | English |
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Prince of Songkla University
2022-06-01
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| Series: | Songklanakarin Journal of Science and Technology (SJST) |
| Subjects: | |
| Online Access: | https://sjst.psu.ac.th/journal/44-3/1.pdf |
| _version_ | 1797849241099436032 |
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| author | Jittima Charoenpanich Anongnart Khotthong Jutamas Pantab Noppamart Thasurin Supattra Chumjam |
| author_facet | Jittima Charoenpanich Anongnart Khotthong Jutamas Pantab Noppamart Thasurin Supattra Chumjam |
| author_sort | Jittima Charoenpanich |
| collection | DOAJ |
| description | Dried cell of a new strain, known as Acinetobacter baylyi, showed appropriate biological removal of Cr (VI) under
acidic condition. The adsorption parameters optimised were: biomass dose (2.0 g/L), initial pH (2.0), agitation speed (250 rpm),
initial Cr (VI) concentration (10–60 mg/L), temperature (30 C), and time (72 h). The experimental data in the 20–60 mg/L
Cr(VI) concentration range fitted well to the Langmuir isotherm (R2 = 0.9545, maximum capacity 11.96 mg/g) and pseudosecond-order adsorption model. The adsorption mechanism was best described by the Boyd plot and an intraparticle diffusion
model. TEM-EDX studies revealed that the noticeable chromium precipitates on bacterial surfaces and within the bacterial inner
portions after Cr (VI) adsorption. An XPS study recommended that this bacterium use carbonyl/hydroxy/carboxy groups on the
surface for adsorption of Cr (VI). |
| first_indexed | 2024-04-09T18:41:47Z |
| format | Article |
| id | doaj.art-7092642341a449ea9b7775ada431ad48 |
| institution | Directory Open Access Journal |
| issn | 0125-3395 |
| language | English |
| last_indexed | 2024-04-09T18:41:47Z |
| publishDate | 2022-06-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj.art-7092642341a449ea9b7775ada431ad482023-04-11T04:35:22ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952022-06-0144358459310.14456/sjst-psu.2022.81Adsorption kinetic of Acinetobacter baylyi for Cr (VI) removal under acidic conditionJittima Charoenpanich0Anongnart Khotthong1Jutamas Pantab2Noppamart Thasurin3Supattra Chumjam4Department of Biochemistry, Faculty of Science, Burapha University, Bangsaen, Mueang, Chon Buri, 20131 ThailandDepartment of Biochemistry, Faculty of Science, Burapha University, Bangsaen, Mueang, Chon Buri, 20131 ThailandBioengineering Program, Faculty of Engineering, Burapha University, Bangsaen, Mueang, Chon Buri, 20131 ThailandDepartment of Biochemistry, Faculty of Science, Burapha University, Bangsaen, Mueang, Chon Buri, 20131 ThailandDepartment of Biochemistry, Faculty of Science, Burapha University, Bangsaen, Mueang, Chon Buri, 20131 ThailandDried cell of a new strain, known as Acinetobacter baylyi, showed appropriate biological removal of Cr (VI) under acidic condition. The adsorption parameters optimised were: biomass dose (2.0 g/L), initial pH (2.0), agitation speed (250 rpm), initial Cr (VI) concentration (10–60 mg/L), temperature (30 C), and time (72 h). The experimental data in the 20–60 mg/L Cr(VI) concentration range fitted well to the Langmuir isotherm (R2 = 0.9545, maximum capacity 11.96 mg/g) and pseudosecond-order adsorption model. The adsorption mechanism was best described by the Boyd plot and an intraparticle diffusion model. TEM-EDX studies revealed that the noticeable chromium precipitates on bacterial surfaces and within the bacterial inner portions after Cr (VI) adsorption. An XPS study recommended that this bacterium use carbonyl/hydroxy/carboxy groups on the surface for adsorption of Cr (VI).https://sjst.psu.ac.th/journal/44-3/1.pdfbiosorptionhexavalent chromiumacinetobacter baylyikinetic modelisotherm study |
| spellingShingle | Jittima Charoenpanich Anongnart Khotthong Jutamas Pantab Noppamart Thasurin Supattra Chumjam Adsorption kinetic of Acinetobacter baylyi for Cr (VI) removal under acidic condition Songklanakarin Journal of Science and Technology (SJST) biosorption hexavalent chromium acinetobacter baylyi kinetic model isotherm study |
| title | Adsorption kinetic of Acinetobacter baylyi for Cr (VI) removal under acidic condition |
| title_full | Adsorption kinetic of Acinetobacter baylyi for Cr (VI) removal under acidic condition |
| title_fullStr | Adsorption kinetic of Acinetobacter baylyi for Cr (VI) removal under acidic condition |
| title_full_unstemmed | Adsorption kinetic of Acinetobacter baylyi for Cr (VI) removal under acidic condition |
| title_short | Adsorption kinetic of Acinetobacter baylyi for Cr (VI) removal under acidic condition |
| title_sort | adsorption kinetic of acinetobacter baylyi for cr vi removal under acidic condition |
| topic | biosorption hexavalent chromium acinetobacter baylyi kinetic model isotherm study |
| url | https://sjst.psu.ac.th/journal/44-3/1.pdf |
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