Adsorption of Selected Pharmaceutical Compounds onto Activated Carbon in Dilute Aqueous Solutions Exemplified by Acetaminophen, Diclofenac, and Sulfamethoxazole
The adsorption of three pharmaceuticals, namely, acetaminophen, diclofenac, and sulfamethoxazole onto granular activated carbon (GAC), was investigated. To study competitive adsorption, both dynamic and steady-state adsorption experiments were conducted by careful selection of pharmaceuticals with v...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2015/186501 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832556994719907840 |
|---|---|
| author | E.-E. Chang Jan-Chi Wan Hyunook Kim Chung-Huei Liang Yung-Dun Dai Pen-Chi Chiang |
| author_facet | E.-E. Chang Jan-Chi Wan Hyunook Kim Chung-Huei Liang Yung-Dun Dai Pen-Chi Chiang |
| author_sort | E.-E. Chang |
| collection | DOAJ |
| description | The adsorption of three pharmaceuticals, namely, acetaminophen, diclofenac, and sulfamethoxazole onto granular activated carbon (GAC), was investigated. To study competitive adsorption, both dynamic and steady-state adsorption experiments were conducted by careful selection of pharmaceuticals with various affinities and molecular size. The effective diffusion coefficient of the adsorbate was increased with decease in particle size of GAC. The adsorption affinity represented as Langmuir was consistent with the ranking of the octanol-water partition coefficient, Kow. The adsorption behavior in binary or tertiary systems could be described by competition adsorption. In the binary system adsorption replacement occurred, under which the adsorbate with the smaller Kow was replaced by the one with larger Kow. Results also indicated that portion of the micropores could be occupied only by the small target compound, but not the larger adsorbates. In multiple-component systems the competition adsorption might significantly be affected by the macropores and less by the meso- or micropores. |
| format | Article |
| id | doaj-art-f3a72cde7d1a41c5bb34f96f17696d79 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-f3a72cde7d1a41c5bb34f96f17696d792025-02-03T05:43:58ZengWileyThe Scientific World Journal2356-61401537-744X2015-01-01201510.1155/2015/186501186501Adsorption of Selected Pharmaceutical Compounds onto Activated Carbon in Dilute Aqueous Solutions Exemplified by Acetaminophen, Diclofenac, and SulfamethoxazoleE.-E. Chang0Jan-Chi Wan1Hyunook Kim2Chung-Huei Liang3Yung-Dun Dai4Pen-Chi Chiang5Department of Biochemistry, Taipei Medical University, Taipei 110, TaiwanGraduate Institute of Environmental Engineering, National Taiwan University, Taipei 106, TaiwanDepartment of Energy and Environmental System Engineering, University of Seoul, Seoul 130-743, Republic of KoreaCarbon Cycle Research Center, National Taiwan University, Taipei 106, TaiwanGraduate Institute of Environmental Engineering, National Taiwan University, Taipei 106, TaiwanGraduate Institute of Environmental Engineering, National Taiwan University, Taipei 106, TaiwanThe adsorption of three pharmaceuticals, namely, acetaminophen, diclofenac, and sulfamethoxazole onto granular activated carbon (GAC), was investigated. To study competitive adsorption, both dynamic and steady-state adsorption experiments were conducted by careful selection of pharmaceuticals with various affinities and molecular size. The effective diffusion coefficient of the adsorbate was increased with decease in particle size of GAC. The adsorption affinity represented as Langmuir was consistent with the ranking of the octanol-water partition coefficient, Kow. The adsorption behavior in binary or tertiary systems could be described by competition adsorption. In the binary system adsorption replacement occurred, under which the adsorbate with the smaller Kow was replaced by the one with larger Kow. Results also indicated that portion of the micropores could be occupied only by the small target compound, but not the larger adsorbates. In multiple-component systems the competition adsorption might significantly be affected by the macropores and less by the meso- or micropores.http://dx.doi.org/10.1155/2015/186501 |
| spellingShingle | E.-E. Chang Jan-Chi Wan Hyunook Kim Chung-Huei Liang Yung-Dun Dai Pen-Chi Chiang Adsorption of Selected Pharmaceutical Compounds onto Activated Carbon in Dilute Aqueous Solutions Exemplified by Acetaminophen, Diclofenac, and Sulfamethoxazole The Scientific World Journal |
| title | Adsorption of Selected Pharmaceutical Compounds onto Activated Carbon in Dilute Aqueous Solutions Exemplified by Acetaminophen, Diclofenac, and Sulfamethoxazole |
| title_full | Adsorption of Selected Pharmaceutical Compounds onto Activated Carbon in Dilute Aqueous Solutions Exemplified by Acetaminophen, Diclofenac, and Sulfamethoxazole |
| title_fullStr | Adsorption of Selected Pharmaceutical Compounds onto Activated Carbon in Dilute Aqueous Solutions Exemplified by Acetaminophen, Diclofenac, and Sulfamethoxazole |
| title_full_unstemmed | Adsorption of Selected Pharmaceutical Compounds onto Activated Carbon in Dilute Aqueous Solutions Exemplified by Acetaminophen, Diclofenac, and Sulfamethoxazole |
| title_short | Adsorption of Selected Pharmaceutical Compounds onto Activated Carbon in Dilute Aqueous Solutions Exemplified by Acetaminophen, Diclofenac, and Sulfamethoxazole |
| title_sort | adsorption of selected pharmaceutical compounds onto activated carbon in dilute aqueous solutions exemplified by acetaminophen diclofenac and sulfamethoxazole |
| url | http://dx.doi.org/10.1155/2015/186501 |
| work_keys_str_mv | AT eechang adsorptionofselectedpharmaceuticalcompoundsontoactivatedcarbonindiluteaqueoussolutionsexemplifiedbyacetaminophendiclofenacandsulfamethoxazole AT janchiwan adsorptionofselectedpharmaceuticalcompoundsontoactivatedcarbonindiluteaqueoussolutionsexemplifiedbyacetaminophendiclofenacandsulfamethoxazole AT hyunookkim adsorptionofselectedpharmaceuticalcompoundsontoactivatedcarbonindiluteaqueoussolutionsexemplifiedbyacetaminophendiclofenacandsulfamethoxazole AT chunghueiliang adsorptionofselectedpharmaceuticalcompoundsontoactivatedcarbonindiluteaqueoussolutionsexemplifiedbyacetaminophendiclofenacandsulfamethoxazole AT yungdundai adsorptionofselectedpharmaceuticalcompoundsontoactivatedcarbonindiluteaqueoussolutionsexemplifiedbyacetaminophendiclofenacandsulfamethoxazole AT penchichiang adsorptionofselectedpharmaceuticalcompoundsontoactivatedcarbonindiluteaqueoussolutionsexemplifiedbyacetaminophendiclofenacandsulfamethoxazole |