Adsorption of As(III) Ions onto Iron-Containing Waste Sludge
The adsorption performance of a low-cost adsorbent (IS), viz. an iron-containing waste sludge arising during a hot-dip galvanizing process, towards the removal of As(III) ions from synthetic aqueous solutions and natural underground water was examined. The adsorption process was best described by th...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2010-07-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.28.6.467 |
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| author | Adina Negrea Lavinia Lupa Mihaela Ciopec Radu Lazau Cornelia Muntean Petru Negrea |
| author_facet | Adina Negrea Lavinia Lupa Mihaela Ciopec Radu Lazau Cornelia Muntean Petru Negrea |
| author_sort | Adina Negrea |
| collection | DOAJ |
| description | The adsorption performance of a low-cost adsorbent (IS), viz. an iron-containing waste sludge arising during a hot-dip galvanizing process, towards the removal of As(III) ions from synthetic aqueous solutions and natural underground water was examined. The adsorption process was best described by the pseudo-second-order kinetic equation. The equilibrium adsorption data were well described by the Langmuir model. The value of the dimensional separation factor, R L , indicated favourable adsorption. The maximum adsorption capacity of IS was 625 μg As(III)/g. The variation in the extent of adsorption with temperature was used to evaluate the thermodynamic parameters for the adsorption process. The values of ΔH 0 and ΔG 0 obtained demonstrated that the adsorption process was exothermic and spontaneous. The studied material exhibited an excellent As(III) ion adsorption performance from both synthetic solutions and a natural water sample. Moreover, no secondary contaminated substances arise if the exhausted adsorbent is recycled (e.g. in glass applications). |
| format | Article |
| id | doaj-art-099c9974358749689f4a8e8d025f6525 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2010-07-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-099c9974358749689f4a8e8d025f65252025-01-02T22:37:23ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382010-07-012810.1260/0263-6174.28.6.467Adsorption of As(III) Ions onto Iron-Containing Waste SludgeAdina NegreaLavinia LupaMihaela CiopecRadu LazauCornelia MunteanPetru NegreaThe adsorption performance of a low-cost adsorbent (IS), viz. an iron-containing waste sludge arising during a hot-dip galvanizing process, towards the removal of As(III) ions from synthetic aqueous solutions and natural underground water was examined. The adsorption process was best described by the pseudo-second-order kinetic equation. The equilibrium adsorption data were well described by the Langmuir model. The value of the dimensional separation factor, R L , indicated favourable adsorption. The maximum adsorption capacity of IS was 625 μg As(III)/g. The variation in the extent of adsorption with temperature was used to evaluate the thermodynamic parameters for the adsorption process. The values of ΔH 0 and ΔG 0 obtained demonstrated that the adsorption process was exothermic and spontaneous. The studied material exhibited an excellent As(III) ion adsorption performance from both synthetic solutions and a natural water sample. Moreover, no secondary contaminated substances arise if the exhausted adsorbent is recycled (e.g. in glass applications).https://doi.org/10.1260/0263-6174.28.6.467 |
| spellingShingle | Adina Negrea Lavinia Lupa Mihaela Ciopec Radu Lazau Cornelia Muntean Petru Negrea Adsorption of As(III) Ions onto Iron-Containing Waste Sludge Adsorption Science & Technology |
| title | Adsorption of As(III) Ions onto Iron-Containing Waste Sludge |
| title_full | Adsorption of As(III) Ions onto Iron-Containing Waste Sludge |
| title_fullStr | Adsorption of As(III) Ions onto Iron-Containing Waste Sludge |
| title_full_unstemmed | Adsorption of As(III) Ions onto Iron-Containing Waste Sludge |
| title_short | Adsorption of As(III) Ions onto Iron-Containing Waste Sludge |
| title_sort | adsorption of as iii ions onto iron containing waste sludge |
| url | https://doi.org/10.1260/0263-6174.28.6.467 |
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