Removal of Carbamazepine onto Modified Zeolitic Tuff in Different Water Matrices: Batch and Continuous Flow Experiments
| Autor: | Daniel D. Snow, Shannon L. Bartelt-Hunt, Layal Z. Alsalhi, Diya Alsafadi, Othman Al-Mashaqbeh |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
lcsh:Hydraulic engineering
Geography Planning and Development surfactant-modification 02 engineering and technology 010501 environmental sciences Aquatic Science 01 natural sciences Biochemistry Matrix (chemical analysis) Adsorption lcsh:Water supply for domestic and industrial purposes Pulmonary surfactant lcsh:TC1-978 zeolitic tuff Effluent matrix effect 0105 earth and related environmental sciences Water Science and Technology lcsh:TD201-500 sorption Chemistry Sorption 021001 nanoscience & nanotechnology Wastewater carbamazepine Ultrapure water Sewage treatment 0210 nano-technology Nuclear chemistry |
| Zdroj: | Water, Vol 13, Iss 1084, p 1084 (2021) Water Volume 13 Issue 8 |
| ISSN: | 2073-4441 |
| Popis: | Carbamazepine (CBZ) is the most frequently detected pharmaceutical residues in aquatic environments effluent by wastewater treatment plants. Batch and column experiments were conducted to evaluate the removal of CBZ from ultra-pure water and wastewater treatment plant (WWTP) effluent using raw zeolitic tuff (RZT) and surfactant modified zeolite (SMZ). Point zero net charge (pHpzc), X-ray diffraction (XRD), X-ray fluorescence (XRF), and Fourier Transform Infrared (FTIR) were investigated for adsorbents to evaluate the physiochemical changes resulted from the modification process using Hexadecyltrimethylammonium bromide (HDTMA-Br). XRD and FTIR showed that the surfactant modification of RZT has created an amorphous surface with new alkyl groups on the surface. The pHpzc was determined to be approximately 7.9 for RZT and SMZ. The results indicated that the CBZ uptake by SMZ is higher than RZT in all sorption tests (> 8 fold). Batch results showed that the sorption capacity of RZT and SMZ in WWTP effluent (0.029 and 0.25 mg/g) is higher than RZT and SMZ (0.018 and 0.14 mg/g) in ultrapure water (1.6–1.8 fold). Batch tests showed that the equilibrium time of CBZ removal in the WWTP matrix (47 h) is much longer than CBZ removal in ultrapure water. The sorption capacity of RZT & SMZ in WWTP effluent (0.03, 0.33 mg/g) is higher than RZT and SMZ (0.02 and 0.17 mg/g) in ultrapure water (1.5–2 fold) using column test. This study has clearly demonstrated that the performance of RZT and SMZ is more efficient for the removal of CBZ from realistic wastewater than ultrapure water. It is evident that the surfactant modification of RZT has enhanced the CBZ removal in both matrices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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