Tavasol, F and Tabatabaie, T and Ramavandi, B and Amiri, F (2021) Photocatalyst production from wasted sediment and quality improvement with titanium dioxide to remove cephalexin in the presence of hydrogen peroxide and ultrasonic. Chemosphere, 284 (13133). ISSN 0045-6535
Full text not available from this repository.Abstract
In this study, wasted sediment (sludge waste from shipping docks) was coupled with titanium isopropoxide by the thermal and sol-gel method as a new photocatalyst. The sediment-titanate catalyst alongside ultrasonic and UV was activated hydrogen peroxide to produce OH radicals and decompose cephalexin (CEP). The photocatalyst was crystalline with 52.29 m2/g BET area. The best destruction rate of 87.01% based on COD test was achieved at optimal conditions (pH: 8, cephalexin concentration: 100 mg/L, H2O2: 1.63 mg/L, UV: 15 W/m2, ultrasonication time: 100 min at 40 kHz, photocatalyst quantity: 1.5 g/L). The trend of anions effect was NO3− ≤ SO42− ≤ Cl−. Decomposition of cephalexin in water solution followed the first-order kinetics (k > 0.01 min−1, R2 > 0.9). The percentage of cephalexin removal from urban water (76%) and hospital wastewater (63%) has decreased compared to the distilled water solution (87%), which is probably due to the presence of radical inhibitors. The consumed electrical energy of the studied system was calculated by 0.031 kW/h. The developed system is a promising and economical method to remove cephalexin
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Cephalexin; Energy consumption; Hydrogen peroxide; Photocatalyst; Reclaimable |
| Subjects: | WA Public Health |
| Divisions: | Faculty of Paramedics |
| Depositing User: | خدیجه شبانکاره |
| Date Deposited: | 27 Dec 2021 07:52 |
| Last Modified: | 27 Dec 2021 07:52 |
| URI: | http://eprints.bpums.ac.ir/id/eprint/9510 |
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