Exploring the potential of a waste-derived bone char for pharmaceuticals adsorption in saline-based wastewater

• Type: Article in International Scientific Journal
• Date: 2024

Authors

Miranda, C (Author) Other; Scalera, F (Author) Other; Piancastelli, A (Author) Other; Pullar, RC (Author) Other; Tiritan M.E. (Author) FFUP; Piccirillo, C (Author) Other; Castro, PML (Author) Other; Amorim, CL (Author) Other

Journal

The Journal is awaiting validation by the Administrative Services.

Title: SUSTAINABLE CHEMISTRY AND PHARMACY

Serial No. 101806 Vol. 42

ISSN: 2352-5541

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Other information

Authenticus ID: P-016-Y17

DOI: 10.1016/j.scp.2024.101761

Abstract (EN): In this study, the effect of salinity in wastewater on the adsorption capacity of a bone char material prepared through pyrolysis of tuna bones at 1000 degrees C was investigated for two pharmaceuticals, tramadol (TRA) and venlafaxine (VNF), both contaminants of emerging concern. This is the first time that the adsorption efficiency of a bone char-type material was tested in such conditions. The Tuna Bone Char (TBC) was composed of calcium phosphate (hydroxyapatite), and graphitic carbon. The TBC is a nanostructured material (particle size 30-60 nm), with a surface area of 100.67 m2/g 2 /g (higher than other waste-derived type materials), and a total pore volume of 575.2 mm3/g. 3 /g. TBC capacity to adsorb TRA and VNF, individually or combined, was evaluated in batch experiments using different aqueous matrices: water, non-saline wastewater, and wastewaters with different salinity levels (7.5 and 12 g/L). For individual pharmaceuticals, the TBC had a higher affinity for TRA than VNF. The presence of salts in wastewaters led to a decrease in the TBC adsorption capacity but it was still effective for pharmaceuticals adsorption. Indeed, for the individual pharmaceuticals, the TBC adsorption capacity (qt) t ) was 0.72-2.14 and 0.77-1.70 mg/g for TRA and VNF respectively, depending on the aqueous matrix. With both pharmaceuticals present, lower qt t values were experimentally obtained for TRA and VNF. The potential of the TBC, a material derived from a by-product of the fish industry, to be used for environmental remediation in different environments, such as saline wastewaters was demonstrated, widening the range of its potential applications.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15