REMOVAL OF CRYSTAL VIOLET BY BIOSORPTION ONTO DATE STONES
The biosorption has the advantage that it can be applied to effluent disposal and thus brings various responses to the regulatory requirements for environmental protection. This study presents the results obtained from the use of date stones (DS) for the elimination of crystal violet (CV) from aqueo...
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| Format: | Article |
| Language: | English |
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Alma Mater Publishing House "Vasile Alecsandri" University of Bacau
2016-07-01
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| Series: | Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry |
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| Online Access: | http://pubs.ub.ro/?pg=revues&rev=cscc6&num=201602&vol=2&aid=4420 |
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| author | NOUREDDINE EL MESSAOUDI MOHAMMED EL KHOMRI SAFAE BENTAHAR ABDELLAH DBIK ABDELLAH LACHERAI |
| author_facet | NOUREDDINE EL MESSAOUDI MOHAMMED EL KHOMRI SAFAE BENTAHAR ABDELLAH DBIK ABDELLAH LACHERAI |
| author_sort | NOUREDDINE EL MESSAOUDI |
| collection | DOAJ |
| description | The biosorption has the advantage that it can be applied to effluent disposal and thus brings various responses to the regulatory requirements for environmental protection. This study presents the results obtained from the use of date stones (DS) for the elimination of crystal violet (CV) from aqueous medium. Several analysis techniques were used to determine the different characteristics of biosorbent studied (FTIR, TGA-DTA, SEM and pHzpc).The physico-chemical parameters influence of the biosorption such as biosorbent dosage, contact time, temperature, biosorbent particles size and initial dye pH were investigated under static conditions in order to evaluate the process system. The test results show that a gram of date stones may set a maximum amount adsorbed 90.89 mg·g-1 of CV at 50 °C according to the Langmuir isotherm with pseudo-second-order kinetic. Thermodynamic calculations performed shows also that sorption is spontaneous, endothermic and increased randomness in the solid / solution interface. |
| format | Article |
| id | doaj-art-8536414facee444fb5d9340bd59ca2a9 |
| institution | Kabale University |
| issn | 1582-540X 1582-540X |
| language | English |
| publishDate | 2016-07-01 |
| publisher | Alma Mater Publishing House "Vasile Alecsandri" University of Bacau |
| record_format | Article |
| series | Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry |
| spelling | doaj-art-8536414facee444fb5d9340bd59ca2a92025-08-20T03:48:42ZengAlma Mater Publishing House "Vasile Alecsandri" University of BacauScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry1582-540X1582-540X2016-07-01172151167REMOVAL OF CRYSTAL VIOLET BY BIOSORPTION ONTO DATE STONESNOUREDDINE EL MESSAOUDI0MOHAMMED EL KHOMRI1SAFAE BENTAHAR2ABDELLAH DBIK3ABDELLAH LACHERAI4Ibn Zohr University, Faculty of Science, Department of Chemistry, Laboratory of Applied Chemistry and Environment, BP 8106, 80000, Agadir, Morocco Ibn Zohr University, Faculty of Science, Department of Chemistry, Laboratory of Applied Chemistry and Environment, BP 8106, 80000, Agadir, Morocco Ibn Zohr University, Faculty of Science, Department of Chemistry, Laboratory of Applied Chemistry and Environment, BP 8106, 80000, Agadir, Morocco Ibn Zohr University, Faculty of Science, Department of Chemistry, Laboratory of Applied Chemistry and Environment, BP 8106, 80000, Agadir, Morocco Ibn Zohr University, Faculty of Science, Department of Chemistry, Laboratory of Applied Chemistry and Environment, BP 8106, 80000, Agadir, Morocco The biosorption has the advantage that it can be applied to effluent disposal and thus brings various responses to the regulatory requirements for environmental protection. This study presents the results obtained from the use of date stones (DS) for the elimination of crystal violet (CV) from aqueous medium. Several analysis techniques were used to determine the different characteristics of biosorbent studied (FTIR, TGA-DTA, SEM and pHzpc).The physico-chemical parameters influence of the biosorption such as biosorbent dosage, contact time, temperature, biosorbent particles size and initial dye pH were investigated under static conditions in order to evaluate the process system. The test results show that a gram of date stones may set a maximum amount adsorbed 90.89 mg·g-1 of CV at 50 °C according to the Langmuir isotherm with pseudo-second-order kinetic. Thermodynamic calculations performed shows also that sorption is spontaneous, endothermic and increased randomness in the solid / solution interface.http://pubs.ub.ro/?pg=revues&rev=cscc6&num=201602&vol=2&aid=4420biosorptioncrystal violetdate stonesisotherms kineticthermodynamic |
| spellingShingle | NOUREDDINE EL MESSAOUDI MOHAMMED EL KHOMRI SAFAE BENTAHAR ABDELLAH DBIK ABDELLAH LACHERAI REMOVAL OF CRYSTAL VIOLET BY BIOSORPTION ONTO DATE STONES Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry biosorption crystal violet date stones isotherms kinetic thermodynamic |
| title | REMOVAL OF CRYSTAL VIOLET BY BIOSORPTION ONTO DATE STONES |
| title_full | REMOVAL OF CRYSTAL VIOLET BY BIOSORPTION ONTO DATE STONES |
| title_fullStr | REMOVAL OF CRYSTAL VIOLET BY BIOSORPTION ONTO DATE STONES |
| title_full_unstemmed | REMOVAL OF CRYSTAL VIOLET BY BIOSORPTION ONTO DATE STONES |
| title_short | REMOVAL OF CRYSTAL VIOLET BY BIOSORPTION ONTO DATE STONES |
| title_sort | removal of crystal violet by biosorption onto date stones |
| topic | biosorption crystal violet date stones isotherms kinetic thermodynamic |
| url | http://pubs.ub.ro/?pg=revues&rev=cscc6&num=201602&vol=2&aid=4420 |
| work_keys_str_mv | AT noureddineelmessaoudi removalofcrystalvioletbybiosorptionontodatestones AT mohammedelkhomri removalofcrystalvioletbybiosorptionontodatestones AT safaebentahar removalofcrystalvioletbybiosorptionontodatestones AT abdellahdbik removalofcrystalvioletbybiosorptionontodatestones AT abdellahlacherai removalofcrystalvioletbybiosorptionontodatestones |