Removal of Azo Dyes - Tartrazine, Carmoisine, and Allura Red - from Wastewater using Spirulina Biomass-Immobilized Alginate Beads: Equilibrium, Kinetics, Thermodynamics, Desorption, and Reusability
Yazarlar (2)
İstanbul Teknik Üniversitesi, Türkiye
Doç. Dr. Oya Irmak CEBECİ
Yalova Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
|
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | Desalination and Water Treatment |
| Dergi ISSN | 1944-3994 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 04-2021 |
| Cilt No | 220 |
| Sayı | 1 |
| Sayfalar | 431 / 445 |
| DOI Numarası | 10.5004/dwt.2021.27010 |
| Makale Linki | https://www.deswater.com/vol.php?vol=220&oth=220|0|April%20|2021 |
| Özet |
| In the present study, Spirulina microalgae-immobilized alginate beads (Alg-SP) were used as novel adsorbents for the adsorption of tartrazine, carmoisine, and Allura Red azo-dyes from wastewa-ter. Synthesized Alg-SP beads were characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, and differential scanning calorimetry analyses. Maximum azo-dye removal percentages were achieved using 100 mg of Alg-SP beads with a ratio of 3.0% (w/v) within 2 h, and tartrazine, carmoisine, and Allura Red removal performances were determined to be 98%, 93%, and 82%, respectively. The adsorp-tion data for azo-dyes onto Alg-SP beads were evaluated by several isotherm equations such as Langmuir, Freundlich, Dubinin–Radushkevich, Temkin, Halsey, and Harkins–Jura isotherm mod-els, but were best described by the Langmuir and Harkins–Jura models as they gave the highest correlation. Pseudo-first-order, pseudo-second-order, Elovich, Weber–Morris, and Bangham models were investigated and dye adsorption onto Alg-SP beads was represented by pseudo-second-order and Elovich kinetic models. After the adsorption process, the beads can easily be regenerated by NaOH and effectively reused over three cycles. Consequently, Spirulina microalgae-immobilized alginate beads have considerable potential for the adsorption of dyes from wastewater. |
| Anahtar Kelimeler |
| Spirulina | Alginate | Adsorption | Azo dyes |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| WoS | 20 |
| SCOPUS | 26 |