20.500.12556/RUL-179669 Biosorption potential of Ganoderma lucidum biomass for Cd(II) remediation adsorption kinetics and isotherm studies Heavy metals release in the environment represents a growing threat to human health and nature, particularly due to industrial activities contributing to soil and water contamination. In this study, Ganoderma lucidum heteropolysaccharides (GLHP) were evaluated as a biosorbent for cadmium removal. The biomass was acquired following the production of Ganoderma lucidum fruiting bodies and consisted of remnants from the fungus and cultivation substrate. Cd(II) and elemental analysis were carried out by atomic adsorption spectrometry (AAS) and inductively coupled plasma mass spectroscopy (ICP-MS), respectively. The biosorption efficiency was critically evaluated, optimizing physical adsorption parameters for batch, column, and percolation configuration, as well as application in real environmental water. Utilizing a simple pre-rinsing step, completely omitting any chemical pretreatment, the Cd(II) removal efficiency was improved from 41.2% to 78.4% in a batch system and up to 98.4% in a fixed-bed column, making it suitable not only for wastewater treatment but also for drinking water purification. The adsorption kinetics were described by a pseudo-second-order (PSO) model and further analyzed using a revised PSO (rPSO) model, which explicitly accounts for adsorbate and adsorbent concentrations. A global fit to the PSO model demonstrated that the rate constant was independent of the adsorbent concentration, supporting its application as a robust descriptor of the adsorption process. GLHP showed good adsorption performance, following the Sips adsorption isotherm and Thomas model for batch and column setup, respectively, demonstrating the potential as a scalable, low-cost biosorbent for fast and efficient Cd(II) removal from contaminated waters. adsorption Ganoderma lucidum heteropolysaccharides cadmium heavy metals biosorption adsorpcija Ganoderma lucidum heteropolisaharidi kadmij težke kovine biosorpcija true false true Angleški jezik Slovenski jezik Članek v reviji 2026-02-19 12:35:59 2026-02-19 12:36:00 2026-02-21 03:55:34 0000-00-00 00:00:00 2026 0 0 25 str. iss. 1, art. 448 ǂVol.ǂ18 Jan. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 547.458:544.723:546.48 2071-1050 10.3390/su18010448 263599363 RAZ_Kralj_Tia_2026.pdf RAZ_Kralj_Tia_2026.pdf 1 D16A357ECC0849E4137D10A25A2B31D7 feb813e08bc20c84c07f31a2bc7cb767b4699030c869619b0067b315563b1092 87113688-0d87-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=228436 https://www.mdpi.com/2071-1050/18/1/448 1 ea527361-0d86-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=228434 Fakulteta za kemijo in kemijsko tehnologijo Biotehniška fakulteta 0 0 0