Abstract
The widespread presence of antibiotics like ciprofloxacin in hospital wastewater poses serious environmental and health risks due to antibiotic resistance. This study presents the synthesis and application of a magnetically separable biochar–magnetite nano-composites for efficient adsorptive removal of ciprofloxacin. Biochar based adsorbents are sustainable, environmentally friendly, low cost and scalable with tuneable surface chemistry and regeneration capacity. In this study, orange peel biochar (CB) was doped with magnetite (Fe3O4) to prepare three different magnetic biochar-magnetite nano-composites CBC-2, CBC-5, CBC-10 which were examined for maximum removal efficiency of ciprofloxacin which is a popular broad-spectrum synthetic fluoroquinolone antibiotic. It is poorly metabolized, frequently excreted from body in unmetabolized and hence reported as a major pollutant in hospital waste water. The best adsorption efficiency was found at pH 8.0 and 298 K temperature by CBC-10 composite with the highest adsorption capacity (~ 90%), 1.25 gm.L−1 adsorbent dose, and the fastest equilibrium rate (60 min contact time) for the lowest ciprofloxacin concentration of 30 ppm. These results suggested that the biochar magnetite composites can serve as a promising adsorbent for the removal of antibiotic traces in the hospital and pharma industry effluents.
Article Highlights
Orange peel waste was turned into a low-cost, eco-friendly material to clean antibiotic pollution from water.
Magnetic biochar composites showed high efficiency, removing nearly 90% of ciprofloxacin in just 1 h.
This approach offers a sustainable and scalable way for hospital wastewater treatment.
You have requested "on-the-fly" machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Show full disclaimer
Neither ProQuest nor its licensors make any representations or warranties with respect to the translations. The translations are automatically generated "AS IS" and "AS AVAILABLE" and are not retained in our systems. PROQUEST AND ITS LICENSORS SPECIFICALLY DISCLAIM ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES FOR AVAILABILITY, ACCURACY, TIMELINESS, COMPLETENESS, NON-INFRINGMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Your use of the translations is subject to all use restrictions contained in your Electronic Products License Agreement and by using the translation functionality you agree to forgo any and all claims against ProQuest or its licensors for your use of the translation functionality and any output derived there from. Hide full disclaimer
Details
1 Suresh Gyan Vihar University, Centre for Renewable Energy & Storage, Jaipur, India (GRID:grid.448952.6) (ISNI:0000 0004 1767 7579)
2 Hiroshima University, Graduate School of Advanced Science and Engineering, Hiroshima, Japan (GRID:grid.257022.0) (ISNI:0000 0000 8711 3200)
3 Graphic Era (Deemed to be University), Department of Allied Sciences (Physics), Dehradun, India (GRID:grid.448909.8) (ISNI:0000 0004 1771 8078)
4 Suresh Gyan Vihar University, Centre for Renewable Energy & Storage, Jaipur, India (GRID:grid.448952.6) (ISNI:0000 0004 1767 7579); Hiroshima University, Natural Science Centre for Basic Research & Development, Hiroshima, Japan (GRID:grid.257022.0) (ISNI:0000 0000 8711 3200)