Zeolite/Cellulose Acetate (ZCA) in Blend Fiber for Removal of Erythromycin from Aqueous Solution Experimental and Theoretical Study
| dc.contributor.author | Erman, Israa | |
| dc.date.accessioned | 2022-09-21T06:45:10Z | |
| dc.date.available | 2022-09-21T06:45:10Z | |
| dc.date.issued | 2021-04-28 | |
| dc.description.abstract | The highly use of pharmaceutical products in various areas has led to the worldwide pollution in the environment. However, effective purification of water contaminated by erythromycin antibiotics remains a great challenge. The more since, wastewater treatment plants are not capable of removing effectively the antibiotics. The aim of this study is to improve the performance of zeolite-A as an adsorbent material using cellulose acetate (CA) addition as a support membrane, for erythromycin antibiotics adsorption. The membrane is called as Cellulose Acetate/Zeolite-A (CA/ZA) membrane. The number of interchangeable sites in the adsorbent structures and the ratio of erythromycin to the three adsorbents were identified as the main reasons for the reduction in adsorption as the initial ERY concentrations increased. Additionally, to pseudo-first-order modelling for all adsorbents, the pseudo second-order modeling showed better fitting for the adsorption. However, the findings obtained in pseudo-first-order model were still enough for explaining the sorption kinetics of ERY, showing that the surface displayed all chemi-sorption and physi-sorption adsorption processes by both adsorbents. Also, the Langmuir and Freundlich isotherm model were discussed to find that this adsorption isotherm was fitted better by Langmuir. The three adsorbents showed negative values of ΔH and these values were -6200, -8500 and -9600 KJ/mol for zeolite, CA and ZCA respectively and this shows that the adsorption is exothermic. In addition, the chemical attitude and possible donor-acceptor interactions of the ERY were assesed by the quantum chemical parameters (QCPs) and NBO analysis performed, at the HF/6-311G** calculations.The desorption analysis shows no substantial loss of adsorption site after three runs, indicating the higher stability and resilience of the three adsorbents, indicating a strong repeatability of their possible use in adsorption processes without contaminating the environment. | en_US |
| dc.identifier.uri | https://hdl.handle.net/20.500.11888/17302 | |
| dc.language.iso | en | en_US |
| dc.publisher | جامعة النجاح الوطنية | en_US |
| dc.supervisor | Prof. Shehdeh Jodeh Prof. Othman Hamed | en_US |
| dc.title | Zeolite/Cellulose Acetate (ZCA) in Blend Fiber for Removal of Erythromycin from Aqueous Solution Experimental and Theoretical Study | en_US |
| dc.title.alternative | استخدام الزيوليت / خلات السليلوز (ZCA) في مزيج الألياف لإزالة الاريثروميسين من محلول مائي دراسة تجريبية ونظرية | en_US |
| dc.type | Thesis | en_US |