On-site regeneration by ultrasound activated persulfate of iron-rich Antipyrine-loaded biochar
نویسندگان
چکیده
Adsorption process has proven its efficiency in the abatement of pharmaceuticals liquid media, even if large volumes wastewater need to be treated. Nevertheless, exhausted adsorbent regeneration is economically and environmentally necessary. For this reason, recent studies are aimed at finding new methods regeneration. In study, an on-site adsorption-regeneration method was assessed. Initially, a model pharmaceutical, Antipyrine (Apy), been adsorbed onto low-cost biochar. Apy adsorption followed pseudo-second order kinetic Langmuir isotherm. second step, spent biochar regenerated by oxidation using SO 4 • − . To do this, generated activation persulfate ultrasound assisted iron inherently into facilitate availability iron, addition enhancing agent such as oxalic acid evaluated. The proved stability reusability achieving uptake percentage around 87% after third cycle. Therefore, could promising for treating other kinds adsorbents resolving pollution problems caused non-controlled throw adsorbents. Removal Antypirine on On-site persulfate. Activation Successful sequential adsorption/regeneration cycles.
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ژورنال
عنوان ژورنال: Journal of environmental chemical engineering
سال: 2022
ISSN: ['2213-2929', '2213-3437']
DOI: https://doi.org/10.1016/j.jece.2022.108400