TY - JOUR AU - Channa, Muhammad Kashif AU - Waris, Muhammad AU - Rahman, Sultana AU - Shahani, Ali Bahar PY - 2025 DA - 2025/02/09 TI - The Remediation of Hexavalent Chromium Using Orange Peel Biosorbent from Industrial Effluents JO - Advances in Environmental and Engineering Research SP - 011 VL - 06 IS - 01 AB - One major cause of aquatic pollution is the accumulation of heavy metal ions. This study shows the biosorption properties of orange peel for removing chromium (CrVI) from industrial wastewater at a laboratory scale. This study focused on the biosorption of CrVI using orange peel biosorbent (OPB) from aqueous solutions in the plastic industry (PI), textile and fabrics industry (TFI), chemical industry (CI), and food industry (FI). The total Cr contents in effluents of FI, CI, TFI and PI varied between 30.0-38.0, 23.0-27.0, 35.0-95.0 and 40.0-180 mg L-1, respectively. Understanding the physical and chemical characteristics of CrVI is necessary for successful bioremediation using OPB. The CrVI is bound to OPB (the peel of Citrus aurantium) by interactions with the biomass's amine and -CO functional group, according to the FT-IR spectra. The change in morphology of OPB was checked by scanning electron microscopy (SEM) after loading of CrVI, indicating that the bio-sorption of CrVI occurs on the OPB. From water samples at an ideal pH of 7, a contact period of 20 min, and a temperature of 298 K, the CrVI biosorption capacity of the biosorbent material was reported to be 0.222 mmol/g (48.0 mg/g). The results show that OPB can be used as an adsorbent or stabilizer for CrVI from industrial effluents. SN - 2766-6190 UR - https://doi.org/10.21926/aeer.2501011 DO - 10.21926/aeer.2501011 ID - Channa2025 ER -